SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION

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In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world cf science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world.

Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review. Press requirements for manuscript and art preparation are outlined on the inside back cover.

S. DILLON RIPLEY

Secretary

Smithsonian Institution

SMITHSONIAN CONTRIBUTIONS TO PALEOBIOLOGY • NUMBER 42

Living and Fossil
Brachiopod Genera 1775-1979

LISTS AND BIBLIOGRAPHY

Rex A. Doescher

SMITHSONIAN INSTITUTION PRESS

City of Washington

1981

ABSTRACT

Doescher, Rex A. Living and Fossil Brachiopod Genera 1775-1979: Lists and Bibliography. Smithsonian Contributions to Paleobiology, number 42,238 pages, 1981.—All genera and subgenera of fossil and living brachiopods described from 1775 to 1979 are listed with comments on their current nomenclatural status. A computerized list presents all valid brachiopod genera (and subgenera), including subjective synonyms, with additional information regarding type-species, superfamily classification, and range (by period) of each genus. A bibliography supplements both lists.

OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution’s annual report, Smithsonian Year. SERIES COVER DESIGN: The trilobite Phacops rana Green.

Library of Congress Cataloging in Publication Data

Doescher, Rex A

Living and fossil brachiopod genera 1775-1979.

(Smithsonian contrihutions to paleobiology no. 42)

Bibliography: p.

1. Brachiopoda. 2. Brachiopoda, Fossil. 3. Brachiopoda—Bibliography. 4. Brachiopoda, Fossil—Bibliography. I. Title. II. Series: Smithsonian Institution. Smithsonian contributions to paleobiology ; no. 42.

QE701.S56 no. 42 [QL395] 560s [594′.8] 80-607773 rev

Contents

Introduction

Acknowledgments

Annotated List of Genera and Subgenera

Computerized List of Valid Genera and Subgenera

Literature Cited

Requirements for Smithsonian Series Publication

Living and Fossil
Brachiopod Genera 1775–1979

LISTS AND BIBLIOGRAPHY

Rex A. Doescher

__________

Rex A. Doescher, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560.

Introduction

Fifteen years have elapsed since the Treatise on Invertebrate Paleontology, Part H. Brachiopoda[1] became the standard reference for brachiopod workers worldwide. The Treatise recognized approximately 1700 distinct genera and placed an additional 500 in synonomy; subsequently, over 1200 new genera of brachiopods have been proposed. In less than two decades the generic list grew to a size 50 percent greater than that amassed in the preceding 204 year interval. Some of this growth was described in Richard E. Grant’s presidential address to the Paleontological Society in November 1979.[2]

It became apparent that an updated brachiopod generic list was necessary to complernent both the Zoological Record and Neave’s Nomenclator Zoologicus, which have often lagged years behind current research. One aspect of the effort to compile such a list was the creation of a file that contains photocopies or reprints of over 3800 references to new brachiopod genera. Also, in recognition of the benefits relating to computer data retrieval, a computer data file was built utilizing a Honeywell (Series 60) Model 66/05 computer under the Time Sharing and Text Editor subsystem. Henceforth, if a researcher has a specific arca of interest, e.g., Permian Productacea, the data can be sorted on the desired fields exclusively, thereby limiting the printout to his arca of interest and also providing him with an updated list of all brachiopod genera in this category within months, rather than years, of publication. The present study is the outgrowth of the compilation of these manual and computer files.

The “Annotated List of Genera and Subgenera” contains all the names of brachiopod genera and subgenera published between 1775 and 1979. Literature citations for original publications are given for all valid genera and subgenera, including subjective synonyms. Symbols or annotations designate junior subjective synonyms, junior objective synonyms, junior homonyms, misspellings, nomina nuda, replacement names, and other nomenclatural problems. In literature citations, the page or plate number locates the designation of the type-species. Multiple citations are given if the taxon has been presented as “new” in more than one publication. The “Literature Cited” is composed of those works referenced in the “Annotated List.”

Notice of the publication of several genera was received too late to include them in the “Computerized List“; however, they have been added to the “Annotated List.” These genera are as follows: Achunoproductus Ustritsky, 1971; Agyrekia Koneva, 1979; Edreja Koneva, 1979; Infurca Percival, 1979; Ivshinella Koneva, 1979; Palaeoschmidtites Koneva, 1979; Parvulaltarostrum Sartenaer, 1979; Pseudoprotathyris Modzalevskaja, 1979; Svalbardia Afanasjeva, 1977a; Telhorotes Manankov, 1979; Tythothyris Zezina, 1979; and Uraloproductus Ustritsky, 1971.

The terminolog-y used in the column heads of the “Computerized List of Valid Genera and Subgenera” is explained below. A number in parentheses marks each of the eight sortable data fields.

Genus(1): All nomina nuda, misspellings, junior objective synonyms, junior homonyms, ichnogenera, and other invalid names are omitted from the list. All subjective synonyms that are so indicated by the Treatise in 1965, however, are included in deference to each researcher’s opinion.

Author(2): The author responsible for establishing the new genus or subgenus. The name is spelled in the manner in which it appeared ori the original publication. For computer compatibility, lengthy multiple names are designated by the primary author plus et al. Some authors have published under several names: Jin Yu-gan has used Jing and Ching Yu-kan; G. A. Afanasjeva was once known as G. A. Besnossova; and A. Rollet became by marriage A. Boullier. Cross references, where name variations are known, are given in the “Literaturc Cited.”

Date(3): The year in which the genus or subgenus was published.

Type-Species: The primary type of a genus or subgenus. In this category, the generic(4) as well as specific (5) term is sortable. The author/date(6) of publication of the type-species is included.

Superfamily(7): Superfamily designations come primarily from the Treatise. All new genera or subgenera after 1965 are placed in the superfamily designated or created by the author. The author and date of publication of the superfamily is noted.

Range(8): Range designations come solely from the Treatise. No attcmpt has been made to expand the ranges as indicated by the Treatise or the ranges of all new genera subsequent to 1965.

It is hoped that all future publications that include new brachiopod genera will be sent to me so that pertinent data can be entered in the computer file and updated lists can be published periodically. I would also like to be informed of any errors or omissions in these lists.

ACKNOWLEDGMENTS.—To Dr. G. A. Cooper, I owe special thanks for creating the generic and specific files, for spending numerous hours assisting me with problems of nomenclature, and for reviewing this manuscript; to Mrs. Josephinc W. Cooper, whose dedication to the maintenance of the bibliographic files and whose translation of the Russian literature made this work possible; to the entire staff of the National Museum of Natural IIistory Library, especially Jack Marquardt, Carolyn Hahn, Betty Jean Swartz, Arny Levin, and Susan Mackler for their patient response to my many requests; to Dante Piacesi, who, along with Karen Collins, wrote the programs to enable me to modify and extract the raw data in a meaningful way; to Harrison Sheng and Yin Hongfu for their help in translitcrating and translating the Chinese literature references; to Drs. Jess Johnson, Howard Brunton, and Bert Rowell, who kept me abreast of new brachiopod genera; to Barbara Spann, editor of series publications with the Smithsonian Institution Press, for assisting me in the researching and compiling of the bibliographic information; to Dr. Curtis Sabrosky, rescarch entomologist, for bis help with the International Code of Zoological Nomenclature; to Dr. Richard E. Grant, for allowing me the time to pursue this goal and for reviewing this manuscript. Finally, I would like to dedicate this work, not only to the many un-named friends who had a part in this project, but also to my wife, Joan, whose encouragement was a constant inspiration to me.

Annotated List of Genera and Subgenera

(*= junior subjective synonym (Treatise); ** = junior objective synonym; † = junior homonym; ‡ = not included in “Computerized List”)

A, Legrand-Blain, 1968 [un-named]

Abichia Askerov, 1964; 1965; 1967 [nomina nuda]

Abrekia Dagys, 1974:98

Abyssothyris Thomson, 1927:190

Acambona White, 1865:27

Acanthambonia Cooper, 1956c:212

Acanthatia Muir-Wood and Cooper, 1960:158

Acanthocosta Roberts, 1971:104

Acanthocrania Williams, 1943:71

Acanthoplecta Muir-Wood and Cooper, 1960:171

Acanthoproductus Martynova, 1970:59

Acanthorhynchia Buckman, 1914 [nomen nudum]; 1917:69

Acanthorthis Neuman, 1977:22

†Acanthospira Weller, 1914 [replaced by Acanthospirma]

Acanthospirifer Menakova, 1964:34

Acanthospirina Schuchert and LeVene, 1929:119 [new name for Acanthospira]

Acanthothiris Orbigny, 1850:323

Acanthothyris.—Bronn, 1862; Paetel, 1875 [misspelling of Acanthothiris]

Acanthothyropsis Kamyschan, 1973, in Kamyschan and Babanova, 1973:64

Acculina Misius, 1977, in Misius and Ushatinskaia, 1977: 113

‡Achunoproductus Ustritsky, 1971:21

Acidotocarena Liu, 1979:507

Acolosia Cooper and Grant, 1976a:2051

Acosarina Cooper and Grant, 1969:2

Acrites.—Davidson and King, 1874 [misspelling of Acritis]

**Acritis Volborth. 1869 [= Aulonotreta]

Acritosia Cooper and Grant, 1969:5

*Acrosaccus Willard, 1928:259 [= Schizotreta]

Acrospirifer Helmbrecht and Wedekind, 1923:952

Acrothele Linnarsson, 1876:21

Acrothyra Matthew, 1901:303

Acrothyris Hou, 1963:419

Acrotreta Kutorga, 1848:275

Acrotretella Ireland, 1961:1140

Actinoconchus McCoy, 1844:149

Actinomena Öpik, 1930:166

Acuminothyris Roberts, 1963:15

Acutatheca Stainbrook, 1945:55

Acutella Ljaschenko, 1973:119

(Acutilineolus) Amsden, 1978:31 [subgenus of Eospirifer]

Adiaphragma Xian, 19786:299

Admmiculoria Waterhouse and Gupta, 1978b:133

Admixtella Rozman, 1978:84

Adolfia Gürich, 1909:137 [replacement by Guerichella invalid, Adolfia not preoccupied]

Adolfispirifer Krylova, 1962:75

Adrenia Chatterton, 1973:126

Adriana Gregorio, 1930a:29

Adygella Dagys, 1959a:25

Adygelloides Dagys, 1959a:28

Aegiria Öpik, 1933a:55

Aegiromena Havlíček, 1961b:450

Aegironetes Havlíček, 1967a:46

Aemula Steinich, 1968a: 193

Aenigmastricklandia Ziegler, 1966:347

Aenigmastrophia Boucot, 1971:156

Aenigmathyris Cooper, 1971:F2

Aequspiriferina Yang and Yin, 1962, in Yang et al., 1962: 110

Aerothyris Allan, 1939:245

Aesopomum Havlíček, 1965a:293

Aetheia Thomson, 1915b:389

Afghanispira Dagys, 1968 [nomen nudum]

Afghanospirifer Plodowski, 1968:255

Afilasma Stehli, 196lb:460

Agastapleura Xu, 1978:211

Agelesia Cooper and Grant, 1969:6

Agerinella Pajaud and Patrulius, [1965]:582

Agramatia Sokolskaja, 1948:39

Agulhasia King, 1871:109

‡Agyrekia Koneva, 1979:60

Ahtiella Öpik, 1932:37

Airtonia Cope, 1934:275

Ajukuzella Ovtsharenko, 1977 [nomen nudum]

Aktassia Popov, 1976, in Nazarov and Popov, 1976:37

Ala Nalivkin, 1979:135

Alaskospira Kirk and Amsden, 1952:61

Alatiformia Struve, 1963:499

Alatoproductus Ching and Zhu, 1978, in Jing and Hu, 1978: 120

Aldanispirifer Alekseeva, 1967:96

Aldanotreta Pelman, 1977:51

Aldingia Thomson, 1916b:501

Aldynkulirhynchia Ovtsharenko, 1977 [nomen nudum]

Alexenia Ivanova, 1935, in Ivanov, 1935:89

Alichovia Gorjansky, 1969:97

Aliconchidium St. Joseph, 1942:247

†Alifera Muir-Wood and Cooper, 1960 [replaced by Alitaria]

Alimbella Andreeva, 1960, in Markowskii, 1960:293

Alipunctifera Waterhouse, 1975:17

Alisina Rowell, 1962:141

Alispira Nikiforova, 1961, in Nikiforova and Andreeva, 1961:243

Alispirifer Campbell, 1961:434

Alitaria Cooper and Muir-Wood, 1967:808 [new name for Alifera]

**Allanaria Crickmay, 1953 [invalid new name for Allanella, Allanella not preoccupied]

Allanella Crickmay, 1953a:5 [replacement by Allanaria invalid, Allanella not preoccupied]

Allanetes Boucot and Johnson, 19676:142

Allorhynchoides Savage, Eberlein, and Churkin, 1978:392

Allorhynchus Weller, 1910:509

Almerarhynchia Calzada Badía, 1974a:94

Almerasithyris Tchorszhewsky, 1973 [nomen nudum]

*Alphachoristites Gatinaud, 1949:492 [= Choristites]

*Alphacyrtiopsis Gatinaud. 1949:490 [= Cyrtiopsis]

*Alphaneospirifer Gatinaud, 1949:491 [= Neospirifer]

*Altaestrophia Bublichenko, 1956:96 [= Leplodontella]

Altaahyrella Severgina, 1978:38

Altajella Kulkov, 1962:653

Alttplecus Stehli, 1954:349

* Aliorthis Andreeva, 1960, in Markowskii, 1960:288 [= Nothorthis]

Alwynella Spjeldnaes, 1957:85

Alwynia Stehli, 19616:464

Ambikella Sahni and Srivastava, 1956:207

Amblotrema Rafinesque, 1831 [incertae sedis]

Amblytrema.—Agassiz, 1846 [misspelling of Amblotrema]

Ambocoelia Hall, 1860:71

Amboglossa Wang and Zhu, 1979:60

Arnbonorthella Bassett, 1972:66

Ambothyris George, 1931:42

Amesopleura Carter, 1967a:364

Ametoria Cooper and Grant, 1975:1055

Anussopecten Havlíček, 1960:243

Amoenospirifer Havlíček, 1957b:439

Amosina Boucot, 1975:360

Amphiclina Laube, 1865:28

Amphichnodonta Bittner, 1888a:288

Amphigenia Hall, 1867b:163

Amphzpella Cooper and Grant, 1969:11

Amphistrophia Hall and Clarke, 1892:292

Amphistrophiella Harper and Boucot, 19786:157

Amphithyris Thomson, 1918:20

Amphitomella Bittner, 1890:298

Amsanella Boucot, 1975 [nomen nudum]

Amsdenella Tillman, 1967:1251

Amsdenina Boucot, 1975:357

(Amsdenostrophrella) Harper and Boucot, 19786:158 [subgenus of Amplustrophiella]

Amurothyris Koczyrkevicz, 19766:77

Amygdalocosta Waterhouse, 1967a:101

Anabaia Clarke, 1893, in Hall and Clarke, 1893:141

Anabaria Lopushinskaja, 1965:27

Anabolotreta Rowell and Henderson, 1978:8

Anadyrella Dagys, 1974:185

Anarhynchia Ager, 1964:63

Anasirophw Hall, 18676:163 [new name for Brachymerus]

Anathyrella Khalfin, 19606:476

Anathyris Peetz, 1901:378

Anatrypa Nalivkin, 1941:172

Anazyga Davidson, 1882:128

Anchigonites Ópik, 1939:136

Ancillotoechia Havlíček, 19596:78

Ancistrocrania Dall, 1877:13 [new name for Cranopsis]

Ancistrorhyncha Ulrich and Cooper, 1942:624

Ancorhynchia Ching and Ye, 1979:101

Ancylostrophia Harper, Johnson, and Boucot, 1967:423

Andobolus Kozlowski, 1930:316

Aneboconcha Cooper, 19736:28

Anechophragma Neuman, 1977:37

†Anelasma Ivanov, 1925 [replaced by Brachythyrina]

**Anelasrnina Semichatova, 1939 [= Anelasma]

Anemonaria Cooper and Grant, 1969:8

Aneulhelasma Cooper and Grant, 19766:2906

Angarella Asatkin, 1932:486

Angulotreta Palmer, 1954:769

Angusticardinia Schuchert and Cooper, 1931:244

Angustothyris Dagys, 1972d:31

Anidanthus Hill, 1950:10

Anidanthus Whitehouse, 1928 [nomen nudum; = Anidanthus Hill, 1950]

Anisactinella Bittner, 1890:302

Anisopleurella Cooper, 1956c:805

Anomaainella Bittner, 1890:300

Anomalesia Cooper and Grant, 19766:2819

Anomaloglossa Percival, 1978:125

Anomaloria Cooper and Grant, 1969:16

Anomalorthis Ulrich and Cooper, 1936b:622

Anoplia Hall and Clarke, 1892:309

Anopliopsis Girty, 1938:281

Anoplotheca Sandberger, 1855:8

Anoplambonites Williams, 1962:170

Ansehia Termier and Termier, 1970:456

Anlebeles.—Orhigny, 1850 [misspelling of Enteletes]

Antelocoelia Isaacson, 1977b:171

Anteridocus Cooper and Grant, 1976a:2055

Anthracospirifer Lane, 1963:388

Antrgalealella Sapelnikov and Rukavischnikova, 1975b:74

Anttgorzambonites Ópik, 1934:147

Antigoniarcula Elliott, 1959:146

Antinomia Catullo, 1851:75

Antinomya.—Davidson, 1853 [misspelling of Antinomia]

Antiptychina Zittel, 1880:704

Antiquatonia Miloradovich, 1945:499

Antirhynchonella Oehlert, 1887, in Fischer, 1887:1311

Antirhynchonella Quenstedt, 1871 [nomen nudum; = Antirhynchonella Oehlert, 1887]

Antispirifer Williams, 1916, in Williams and Breger, 1916:116

Antistrix Johnson, 1972:121

Antronaria Cooper and Grant, 1976a:2036

Apatornorpha Cooper, 1956c:709

Apatorthis Öpik, 19336:6

Aperispirifer Waterhouse, 1968a:35

Aphanomena Bergstriöm, 1968:13

Aphaurosia Cooper and Grant, 1976a:2048

Aphelesia Cooper, 1959:41

*Apheoorthina Havlíček, 1949a:99 [= Apheoorthis]

Apheoorthis Ulrich and Cooper, 1936b:620

Apicilirella Su, 1976:179

Apleurotis Rafinesque, 1819 [nomen nudum]

Apollonorthis Mitchell, 1974:392

Apomatella Schuchert and Cooper, 1931:245

Apopentamerus Boucot and Johnson, 1979:104

Aporthophyla Ulrich and Cooper, 1936b:625

Aporthophylina Liu, 1976:144

Apousiella Carter, 1972:732

Apringia Gregorio, 1886:23

Apsilingula Williams, 1977:403

Apsocalymma McIntosh, 1974:213

Apostreta Palmer, 1954:770

Araratella Sartenaer and Plodowski, 1975:5

Atatanea Schmidt, 1967:92

Araxathyris Grunt, 1965, in Ruzhentsev and Sarytcheva, 1965:240

Araxilevis Sarytcheva, 1965, in Ruzhentsev and Sarytcheva, 1965:221

Araxina Askerov, 1965; 1967 [nomina nuda]

Arbizustrophia Garcia-Alcalde, 1972c:57

Arcelinithyris Almeras, 1971:173

Arceythyris Rollet, 1964:38

Archaeorthis Schuchert and Cooper, 1931:243

Arcosarina Ching, Sun, and Ye, 1979:185

Arctitreta Whitfield, 1908:57

Araochonetes Ifanova, 1968:29

Arctohedra Cooper, 1936:210

**Arctolaballa Dagys, 1977 [= Pseudolaballa]

Arctomeristina Amsden, 1978:33

Arctospirifer Stainbrook, 1950:382

Arctothyris Dagys, 1965:140

Arcualla Walmsley and Boucot, 1975:79

Arcuatothyris Popiel-Barczyk, 1972:136

(Arduennensisspirifer) Kutscher and Mittmeyer, 1970 [subgenus of Acrospirifer; nomen nudum]

(Arduspirifer) Mittmeyer, 1972:101 [subgenus of Acrospirifer; elevated to genus by Mittmeyer in 1973]

Arenaciarcula Elliott, 1959:147

Arenorthis Havíček, 1970b:29

Areostrophia Havlíček, 1965a:293

Argentiproductus Cooper and Muir-Wood, 1951:195 [new name for Thomasella Paul, 1942]

†Argiope Deslongchamps, 1842 [replaced by Megathiris]

Argovithyris Rollet, 1972:95

Argyope.—Davidson 1850 hnisspelling of Argiope]

Argyrotheca Dall 1900:44 [new name for Cistella]

Arionthia Cooper and Grant, 1976b:2750

Arktikina Grunt, 1977a:69

Aromasichyris Almeras, 1971:544

Artimyctella Liu, 1979:508

Artiotreta Ireland, 1961:1138

Aseptalium Hou and Xian, 1975:37

Aseptella Martínez and Winkler, 1977:18

Aseptoneles Isaacson, 1977a:177

**Asioproduaus Chan, 1977; 1978; 1979 [= Transennalia]

Asperlinus Waterhouse and Piyasin, 1970:132

Aspidothyris Diener, 1908:59

Astegosia Cooper and Grant, 1969:16

Astraborthis Williams, 1974:69

Astutorhyncha Havlíček, 1961a:105

Asymphylotoechia Ross, 1970:60

Asyrinx Hudson and Sudbury, 1959:46

Asyrinxia Campbell, 1957:80

Atelelasma Cooper, 1956c:517

Atelestegastus Cooper and Grant, 1975:829

Atelithyris Smirnova, 1975c:77

*Athabaschia Crickmay, 1963:10 [= Ladogioides]

*Athyrella Renz, 1913 [nomen nudum; = Spirigerella]

Athyrhynchus Johnson, 1973c:467

Athyris McCoy, 1844:147

Athyrisina Hayasaka, 1922:52

†Athyrisinoides Chen and Wan, 1978

Athyrisinoides Jiang, 1978:303

Atlantida Havlíček, 1971c:37

**Atretia Jeffreys, 1870 [= Cryptopora]

Atribonium Grant, 1965:38

Atrypa Dalman, 1828:127

Atryparia Copper, 1966a:982

Atrypella Kozlowski, 1929:30

Atrypina Hall and Clarke, 1893:162

Atrypinella Khodalevich, 1939:45

Atrypoidea Mitchell and Dun, 1920:272

*Atrypopsis Poulsen, 1943:44 [= Dubaria]

Atrythyris Struve, 1965a:218

Attenuatella Stehli, 1954:343

Auchmerella Struve, 1964c:521

Aulacella Schuchert and Cooper, 1931:246

Aulacophoria Schuchert and Cooper, 1931:247

*Aulacorhyna Strand, 1928:37 [new name for Aulacorhyrichus; = Isogramma]

†Aulacorhynchus Dittmar, 1872 [replaced by Aulacorhyna]

Aulacothyris Douvillé, 1879:277

Aulacothyroides Dagys, 1965:155

Aulacothyropsis Dagys, 1959b:99

Aulzdospzra Williams, 1962;252

Aulonotreta Kutorga, 1848:282

Auloprotonia Muir-Wood and Cooper, 1960:273

Aulosteges Helmersen, 1847:331

Auriculispina Waterhouse, 1975:13

Austinella Foerste, 1909a:224

Australiarcula Elliott, 1960:26

Australina Clarke, 1912:10

Australirhynchia Savage, 1968b:731

Australocoelta Boucot and Gil, 1956:1174

Australosia McKellar, 1970:12

Australospirifer Caster, 1939:159

Austratostrophia Caster, 1939:83

†Austriella Bittner, 1890 [replaced by Austriellula]

**Austriellina Schuchert and LeVene, 1929 [invalid new name for Austriella, already renamed]

Austriellula Strand, 1928:38 [new name for Austriella]

Austrirhynchia Ager, 1959:325

Austrochoristites Roberts, 1971:230

Austronoplia Isaacson, 1977a:178

Austrospirifer Glenister, 1956:58

Austrothyris Allan, 1939:238

Avisyrinx Martínez, 1975:33

Avoniaa Thomas, 1914:259

Avonothyris Buckman, 1917:102

Axiodeaneia Clark, 1917:375

Azerithyris Askerov, 1964; 1965 1967 [nomina nuda]

Babukella Dagys, 1974:208

Backhausina Pajaud, 1966b:125

Bactrynium Emmrich, 1855:449

Bagnorthis Levy and Nullo, 1974a:184

Bagrasia Nalivkin, 1960, in Sarytcheva et al., 1960:231

Bailliena Nelson and Johnson, 1968:723

Bajanhongorella Rozman, 1977:124

Bajanorthts Andreeva, 1968, in Markowskii, 1968:73

Bajkuria Ustritsky, 1963, in Ustritsky and Tschernjak, 1963:116

Balakhonia Sarytcheva, 1963, in Sarytcheva et al., 1963: 231

Balanoconcha Campbell, 1957:86

Balatonspira Dagys, 1974:137

Bancroftina Sinclair, 1946:295 [new name for Raymondella Whittington, 1938]

Bandoproductus Ching and Sun, 1979 [nomen nudum]

Barbaestrophia Havlíček, 1965b:7

Barbarorthis Öpik, 1934:183

**Barrandella Hall and Clarke, 1893 [= Antirhynchonella]

Barrandina Booker, 1926:132

Barroisella Hall and Clarke, 1892:63

Barzellinia Gregorio, 1930b:8

Bashkiria Nalivkin, 1979:144

Basilicorhynchus Crickmay, 1952:1

Basrliola Dall, 1908:442

Basiola.—Thomson, 1915 [misspelling of Basiliola]

†Bathycoelia Foerste, 1909 [replaced by Pionodema]

Bathyruyonia Muir-Wood and Cooper, 1960:245

Bathynanus Foster, 1974:80

Bathyrhyncha Fuchs, 1923:854

Baturria Carls, 1974:167

Bazardarella Ovtsharenko, 1977 [nomen nudum]

Beachia Hall and Clarke, 1893:260

Beckmannia Mohanti, 1972:166

Beecheria Hall and Clarke, 1893:300

Beichuanella Chen, 1978:339

Beitaia Rong and Yang, 1974:199

Bejrutella Tchorszhewsky, 1972:40

(Bekkerella) Reed, 1936:39 [subgenus of Rafinesquina]

†Bekkerella Rosenstein, 1943 Ireplaced by Elsaella]

Bekkeromena Rōōmusoks, 1963:235

Belbekella Moisseiev, 1939:195

Belcutella Litvinovich, 1967:55

Bellaclathrus Winters, 1963:26

Bellimurina Cooper, 1956c:854

Belothyris Smirnova, 1960:117

*Benignites Havlíček, 1952:409 [= Merciella]

Bergalaria Schmidt, 1975:101

Beschevella Poletaev, 1975:51

*Betachoristites Gatinaud, 1949:492 [= Choristites]

*Betacyrtiopsis Gatinaud, 1949:490 [= Cyrtiopsis]

*Betaneospirifer Gatinaud, 1949:491 [= Neospirifer]

Biarea Torbakova, 1959, in Khodalevich et al., 1959:75

Bibatiola Grant, 1976:136

Bicarinatina Batrukova, 1967 [nomen nudum]; 1969:59

Bicia Walcott, 1901:677

Biconostrophia Havlíček, 1956:562

Bicornes Quenstedt, 1852 [invalid name, Opinion 907 ICZN]

Bicuspina Havlíček, 1950:18

Bidentatus Khodalevich and Breivel, 1972, in Malygina et al., 1972:202

Biernatella Balinski, 1977:179

Biernatium Havlíček, 1975:234

Bifida Davidson, 1882:27

Bifolium Elliott, 1948:3

Biheridulirhynchia Muir-Wood, 1935:104

Bihenithyris Muir-Wood, 1935:111 Babanova, 1964:66

Billingsella Hall and Clarke, 1892:230

†Billingsia Ford, 1886 [replaced by Elkania]

Bilobia Cooper, 1956c:760

**Bilobites Linné, 1775 [= Dicoelosia]

Bilotina Reed, 1944:109

Bimuria Ulrich and Cooper, 1942:623

Biparetis Amsden, 1974:54

Biseptum Khodalevich and Breivel, 1959, in Khodalevich et al., 1959:39

Bisinocoelia Havíček, 1953:7

*Bispinoproductus Stainbrook, 1947:311 [= Leioproductus]

Bistramia Hoek, 1912, in Steinmann and Hoek, 1912:247

Bisulcata Boucot, 1975 [nomen nudum; = Bisulcata Boucot and Johnson, 1979]

Bisulcata Boucot and Johnson, 1979:117

Bisulcatella Boucot, 1975 [nomen nudum]

Bisulcina Titova, 1977:81

Bittnerella Dagys, 1974:77

Bittnerula Hall and Clarke, 1894:764

*Blairella Miller and Gurley, 1896 [nomen nudum; = Rhipidomella]

*Blasispirifer Kulikov, 1950:6 [= Spiriferella]

Blochmannella Leidhold, 1921:356

Blyskavomena Havlíček, 1976:369

Bobinella Andreeva, 1968, in Markowskii, 1968:80

Bodrakella Moisseiev, 1936:47

Bohemiella Schuchert and Cooper, 1931:242

Bohemirhynchia Nekvasilova, 1973:78

(Boicinetes) Havlíček and Racheboeuf, 1979:73 [subgenus of Chonetes]

Bojarinovia Aksarina, 1978, in Aksarina and Pelman, 1978: 106

Bojodouvillina Havlíček, 1967a:171

Bojothyris Havlíček, 1957 [nomen nudum]; 1959a:247

Boloria Grunt, 1973, in Grunt and Dmitriev, 1973:119

Booralia Campbell, 1961:449

Boreadorthis Öpik, 1934:184

Borealirhynchia Su, 1976:194

Borealis Boucot, Johnson, and Rubel, 1971:274

Boreiospira Dagys, 1974:126

Boreiothyris Dagys, 1968:110

Bornhardtina Schulz, 1914:363

Borszhaviella Tchorszhewsky, 1973 [nomen nudum]

Bosquetella Smirnova, 1969a:83

Bothrionia Cooper and Grant, 1975:985

Bothrostegium Cooper and Grant, 1974:330

Botsfordia Matthew, 1891:148

Boubeithyris Cox and Middlemiss, 1978:419

Bouchardia Davidson, 18506:65

Bouchardiella Doello-Jurado, 1922:200

*Bouchardopsis Maillieux, 1933 [nomen nudum = Tylothyris]

Boucotella Bowen, 1966:186

Boucatia Gill, 1969:1227

Boucotides Amsden, 1968:44

Boucotinskia Brunton and Cocks, 1967:180

Bouskia Havlíček, 1975:233

Brachiopus Rafinesque, 1831 [sine type]

†Brachymerus Shaler, 1865 [replaced by Anastrophia]

Brachymimulus Cockerell, 1929:105 [new name for Minutas]

(Brachyprion) Shaler, 1865:63 [subgenus of Strophodonia]

Brachyspirifer Wedekind, 1926:198

Brachythyrina Fredericks, 1929:385 [new name for Anelasma]

Brachythyrinella Waterhouse and Gupta, 1978a:425

Brachythyris McCoy, 1844:128

Brachyzyga Kozlowski, 1929:31

Bracteoleptaena Havlíéek, 1963b:224

Brahimorthis Havlíéek, 1971c:29

Branconia Gagel, 1890:62

Brandysia Havlíéek, 1975:231

Branikia Havlíček, 1957b:437

*Branxionia Booker, 1930:30 (= Wyndhamia]

†Brasilia Clarke, 1913 [replaced by Brasilina, Chapadella, and Oliveirella]

Brasilica.—Greger, 1920 [misspelling of Brasilia]

*Brasilina Clarke, 1921:139 [new name for Brasilia; = Paranaia]

Brasilioproductus Mendes, 1959:48

Brevicamera Cooper, 1956c:560

Brevilamnulella Amsden, 1974:62

Brevilamula Amsden, 1974 [nomen nudum]

(Breviseptum) Sapelnikov, 1960b:109 [subgenus of Conchidium]

Brevispirifer Cooper, 1942:231

Brochocarina Brunton, 1968:31

Broeggeria Walcott, 1902:605

Bronnothyris Popiel-Barczyk and Smirnova, 1978:134

Brooksina Kirk, 1922:3

Browneella Chatterton, 1973:117

Brunnirhyncha Havlíeek, 1979:97

Brynella Bancroft, 1933 [nomen nudum]

Bryorhynchus Cooper and Grant, 1969:11

Buchanathyris Talent, 1956:36

Bufocephalus Linné, 1779 [incertae sedis]

Bulandelia Roberts, 1976, in Roberts et al., 1976:213

Bullarina Ching and Sun, 1979 [nomen nudum]

(Bulloihyris) Suae-Protie, 1971:21 [subgenus of Loboidothyropsis]

Burmirhynchia Buckman, 1915 [nomen nudum]; 1917:49

Burrirhynchia Owen, 1962:59

Bursula Klein, 1753 [nonbinomial]

Buxtonza Thomas, 1914:259

Buxionioides Mendes, 1959:43

Bystromena Williams, 1974:146

**Cacata Strand, 1928 [new name for Thomsonia; = Coptothyris]

Cacemia Mitchell, 1974:394

Cactosteges Cooper and Grant, 1975:850

Cadomella Munier-Chalmas, 1887, in Fischer, 1887:1285

Caenanoplia Carter, 1968:1143

Caenotreta Cocks, 1979a:94

Caeroplecia Williams, 1974:121

Calcirtrynchia Buckman, 1914 [nomen nudum]; 1917:30

California.—Bassler, 1915 [misspelling of Cliftonia]

(Callaiapsida) Grant, 1971:323 [subgenus of Camerisma]

Callicalyptella Boucot and Johnson, 1972:301

Calliglypha Cloud, 1948:468

Calliomarginatia Ching, 1976, in Zhang and Ching, 1976: 181

Callipentamerus Boucot, 1964a:887

Callipleura Cooper, 1942:228 [new name for Cyclorhina]

Calliprotonia Muir-Wood and Cooper, 1960:246

Callispirina Cooper and Muir-Wood, 1951:195 [new name for Mansuyella]

Callospiriferina Rousselle, 1977:157

Catvinaria Stainbrook, 1945:44

Catyplolepta Neuman, 1977:35

Camarelasma Cooper and Grant. 1976b:2900

Camarella.—Dall, 1877; Oehlert, 1887 [misspelling of Camerella]

*Camarium Hall, 18596:43 [= Merista]

Camarophorella Hall and Clarke, 1893:215

Camarophoria.—Herrmannsen, 1846 [misspelling of Camerophorza]

Camarophorina Licharew, 1934a:213

Camarophorinella Licharew, 19366:63

Camarospira Hall and Clarke, 1893:82

Camarothyridina Linnik, 1966:129

Camarotoechia Hall and Clarke, 1893:190

Camaroloechioides Rzonsnitzkaja, 1978:178

Cambrotrophia Ulrich and Cooper, 1937:78 [new name for Eostrophia]

Camdetla Ustritsky, 1971 [nomen nudum? misspelling of Gamdaella?]

Camerella Billings, 1859b:301

Camerisma Grani, 1965:64

**Camerophoria King, 1844 [nomen nudum]; 1846 [= Stenuscisma]

Camerophorina Schmidt, 1941:43

Camerothyris Bittner, 1890:318

Campages Hedley, 1905:43

Campylorthis Ulrich and Cooper, 1942:621

Canadospira Dagys, 1972c:40

†Canavaria Merla, 1928 [replacement by Cemmellaria invalid, Gemmellaria preoccupied; replaced by Sicelia]

Cancellospirifer Campbell, 1953:10

Cancellothyris Thomson, 1926:525

Cancrtnella Fredericks, [19281:784

Cancrmelloides Ustritsky, 1963, in Ustritsky and Tschernjak, 1963:85

Candozrtfer Havlíček, 1971a:26

Carithylotreta Rowell, 1966:5

†Capellinia Hall and Clarke, 1893 [replaced by Capelliniella]

Capellinzella Strand, 1928:38 [new name for Capellinia]

**Captilifera Jing and Hu, 1978:120; Ching and Ye, 1979:86 [invalid new name for Chilianshania, Chilianshania not preoccupied]

Capillirhynchia Buckman, 1914 [nomen nudum]: 1917:58

Capillirostra Cooper and Muir-Wood, 1951:195 [new name for Rhynchonellopsis Böse, 1894]

Capillithyris Katz, 1974:258

Capillonia Waterhouse, 1973:37

Caplinoplia Havlíček and Racheboeuf, 1979:102

Carapezzia Tomlin, 1930:24 [new name for Geyeria]

Carbocyrtina Ivanova, 1975:81

Carcharina Cooper, 1956a:527

Cardinirhynchia Buckman, 1917:74

Carchnocrania Waagen, 1885:746

Cardiodonta Hall, 1850 [nomen nudum]

Cardiothyris Roberts, 1971:178

Caricula Grant, 1976:128

Carinagypa Johnson and Ludvigsen, 1972:128

(Carinastrophia) Gratsianova, 1975:64 [subgenus of Areostrophia)

Carinatina Nalivkin, 1930:192

Carinalinella Gratsianova, 1967:97

Carinatrypa Copper, 1973:496

Carinijerella Schuchert and Cooper, 1931:246

Cannokoninckina Jin and Fang, 1977:59

Carlinia Gordon, 1971:259

*Carlopsina Reed, 1954:183 [= Schellwienella]

Carmanella Boucot, 1975 [nomen nudum]

Carnerthyris Sahni, 1925:364

Carpatothyris Smirnova, 1975a:135

Cartorhium Cooper and Grani, 1976a:2191

Caryogyps Johnson, Boucot, and Murphy, 1976:53

Caryorhynchus Crickmay. 1952:1

Casquella Percival, 1978:128

Cassianospira Dagys, 1972a:103

Cassidirostrum McLaren, 1961:2

Caslellaroina Boucot, 1972, in Amos, 1972:11

Catazyga Hall and Clarke, 1893:157

Cathaysia Ching, 1966, in Wang et al., 1966:372

Caucasella Moisseiev, 1934:83

Caucasithyris Askerov, 1964; 1965; 1967 [nomen nudum]

Caucasorhynchia Dagys, 1963:66

Caucasothyris Dagys, 1974:192

*Causea Wiman, 1905:53 [= Mickwitzia]

Cavatisinurostrum Sartenaer, 1972:2

Cedulia Racheboeuf, 1979:256

Celebetes Grani. 1976:137

Celsifornix Carter, 1974:677

Cenorhynchia Cooper and Grani, 1976a:1986

Centronella Billings, 1859a:131

Centronelloidea Weller, 1914:247

Centrorhynchus Sartenaer, 1970:11

Centrospirifer Grabau, 1931 [nomen nudum; = Centrospirifer Tien, 1938]

*Centrospirifer Tien, 1938:111 [= Cyrtospirifer]

Ceocypea Grant, 1972:226

Ceralreta Beh, 1941:233

Cererithyris Buckman, 1914 [nomen nudum]; 1917:109

Chaeniorhynchus Cooper and Grani, 1976a:1999

Chaganella Nikitin, 1974:65

Changshaispirifer Zhao, 1977:428

*Chaoella Licharew, 1931:161 [= Keyserlingina]

Chaoiella Fredericks, 1933:31

Chaoina Ching, 1974:308

*Chapadella Greger, 1920:70 [new name for Brasilia; = Paranaia]

Chapinella Savage, Eberlein, and Churkin, 1978:388

Charionella Billings, 18616:148

Charronoides Boucot, Johnson, and Staton, 1964:817

Charltonithyris Buckman, 1915 [nomen nudum]; 1917:106

Chascothyris Holzapfel, 1895:234

Chathamithyris Allan, 1932:15

Chattertonia Johnson, 1976:789

Chatwinothyris Sahni, 1925:368

(Chaulistomella) Cooper, 1956c:432 [subgenus of Multicoslella]

Cheirothyris Rollier, 1919:338

Cheirothyropsis Makridin, 1964:267

Chelononia Cooper and Grani, 1974:327

*Chemungia Caster, 1939:107 [= Strophonelloides]

Cheniothyris Buckman, 1915 [nomen nudum]; 1917:128

Chianella Waterhouse, 1975:13

*Chilianshania Yang and Ting, 1962, in Yang et al., 1962: 86 [= Monticulifera]

*Chilidiopsis Boucot, 19596:25 [= Fardenia]

Chilidorthis Havlíček, 1972, in Havlíček and Josopait, 1972: 342

Chimaerothyris Paulus, Struve, and Wolfart, 1963:463

Chivatschella Zavodowsky, 1968, in Markowskii, 1968:125

Chlidonophora Dall, 1903:1538

Chlupacina Havlíček and Racheboeuf, 1979:86

Chnaurocoelia Johnson, Boucot, and Murphy, 1976:95

Choanodus Cooper and Grani, 1974:402

Choanoproductus Termier and Termier, 1966 [nomen nudum]

Chondronia Cooper and Grani, 19766:2854

†Chonetella Krotow, 1885 [replaced by Chonetina]

Chonetella Waagen, 1884:657

Chonetes Fischer de Waldheim, 1830, pl. 26

Chonetina Krotow, 1888:500 [new name for Chonetella Krotow, 1885]

Chonetinella Ramsbottom, 1952:13

Chonetinetes Cooper and Grant, 1969:4

Chonetipustula Paeckelmann, 1931a:31

Chonetoidea Jones, 1928:389

*Choniopora Schauroth, 1854:546 [= Acanthocrania]

Chonopectella Sarytcheva, 1966:135 [new name for Chonopecloides Sarytcheva, 1965]

Chonopectoides Crickmay, 1963:23

†Chonopectoides Sarytcheva, 1965 [replaced by Chonopectella]

Chonopectus Hall and Clarke, 1892:312

Chonosteges Muir-Wood and Cooper, 1960:113

Chonostegoides Sarytcheva, 1965, in Ruzhentsev and Sarytcheva, 1965:212

Chonostrophia Hall and Clarke, 1892:311

Chonostrophiella Boucot and Amsden, 1964:881

Choperella Ljaschenko, 1969a:22

Choristitella Ivanov and Ivanova, 1937:163

Choristiles Fischer de Waldheim, 1825:8

Choristothyris Cooper, 1942:233

Christiania Hall and Clarke, 1892:299

Chrustenopora Havlíček, 1968:123

Chynistrophia Havlíček, 197713:301

Cilinella Havlíček, 1970b:16

Cimicinella Schmidt, 1943:67

Cimicinoides Anderson, Boucot, and Johnson, 1969:156

Cincta Quenstedt, 1868:25

Cinctifera Muir-Wood and Cooper, 1960:166

Cinerorthis Havlíček, 1974:167

Cingulodermis Havlíček, 1971a:15

Cirpa Gregorio, 1930a:40

†Cistella Gray, 1853 [replaced by Argyrotheca]

Cistellarcula Elliott, 1954:726

Clarkeia Kozlowski, 1923:86

Clarkella Walcott, 1908:111

Clathrithyris Smirnova, 1971 [nomen nudum]; 1974:48

Clavigera Hector, 1879:538 [type designated by Marwick, 1953:45]

Clavigerina.—Marwick, 1946 [misspelling of Clavigera]

Clavodalejina Havlíček, 1977a:227

Cleidothyris.—Paetel, 1875 [misspelling of Cleiothyris Phillips, 1841; = Athyris]

Cleiothyridellina Waterhouse, 1978:82

Cleiothyridina Buckman, 1906b:324 [new name for Cleiothyris King, 1850]

†Cleiothyris King, 1850 [replaced by Cleiothyridina]

**Cleiothyris Phillips, 1841 [= Atrypa]

Cliftonia Foerste, 1909b:82

Clinambon Schuchert and Cooper, 1932:115

Clintonella Hall and Clarke, 1893:160

Cliothyriclina.—Girty, 1910 [improper emendation of Cleiothyridina]

*Cliothyris.—Agassiz, 1846 [misspelling of Cleiothyris Phillips, 1841; = Athyris]

Cliothyris.—Hall and Clarke, 1893 [misspelling of Cleiothyris Phillips, 1841]

Clipsilia.—Dall, 1877 [misspelling of Clipsilis

Clipsilis Rafinesque, 1820 [nomen nudum]

Clistotrema Rowell, 1963:35 [new name for Orbicella]

Clitambonites Agassiz, 1847:90

Clivospirifer Ljaschenko, 1973:108

Clorinda Barrande, 1879:109

Clorindella Amsden, 1964:236

Clorindina Khodalevich, 1939:11

Clorindinella Rzonsnitzkaja, 1975:61

Cloudella Boucot and Johnson, 1963, in Boucot, Caster, et al., 1963:123 [new name for Pleurothyris]

Cloudothyris Boucot and Johnson, 1968:B19

Crasmatocentrum Dall, 1920:321

Coelospira Hall, 1863:60

Coelospirella Su, 1976:203

Coelospirina Havlíček, 1956:586

Coeloterorhynchus Sartenaer, 19666:41

Coenothyris Douvillé, 1879:270

Colaptomena Cooper, 1956c:889

Colechurn Grant, 1965:96

Collarothyris Modzalevskaja, 1970:155

Collemataria Cooper and Grant, 1974:434

Collumatus Cooper and Grant, 1969:6

Colongina Breivel and Breivel, 19706:61

Comatopoma Havlíček, 1950:54

Comelicania Frech, 1901:551

Comiotoechia Ljaschenko, 1973:37

Composita Brown, 1849:131

Compressoproductus Sarytcheva, 1960, in Sarytcheva et al., 1960:231

Compsoria Cooper, 1973a:23

Compsothyris Jackson, 19186:188

Comuquia Grant, 1976:97

*Conchidiella Khodalevich, 1939:32 [= Zdimir]

Conchidium Oehlert, 1887, in Fischer, 1887:1311

Concinnispirifer Boucot, 1975:367

Concinnithyris Sahni, 1929:11

*Condrathyris Minato, 1953:69 [= Phricodothyris]

Connectoproductus Donakova, 1974:173

Conodiscus Ulrich and Cooper, 19366:619

Conorminus Johnson, Boucot, and Gronberg, 1968:406

Conotreta Walcott, 1889:365

**Conradia Hall, 1874 [= Dinobolus]

Contradouvillina Gratsianova, 1975:48

*Coolinia Bancroft, 1949a:7 [= Fardenia]

Cooperina Termier, Terrnier, and Pajaud, 1966:332

Coptothyris Jackson, 19I8a:479 [new name for Thomsonia]

**Cora Fredericks, 1928 [= Linoproductus]

Corbicularza Ljaschenko, 1973:29

Cordatornyonia Boucot, Gauri, and Johnson, 1966:164

Corineorthis Stubblefield, 1939:67

Cornwallia Wilson, 1932:388

Coronalosia Waterhouse and Gupta, 1978a:415

**Corrugatella Khalfin, 1948 [= Cymostrophia]

Corrugatimediorostrum Sartenaer, 1970:23

Cortezorthis Johnson and Talent, 1967a:143

Coscinnopugnax Havlíček, 1961a:36

Coscinarina Muir-Wood and Cooper, 1960:138

Coscinophora Cooper and Stehli, 1955:469

Costachonetes Watcrhouse, 1975:2

Costacranaena Johnson and Perry, 1976:631

**Costalosia Waterhouse and Shah, 1966 [= Licharezaella]

Costanoplia Xu, 1977:65

Costatrypa Copper, 1973:494

†Costellaria Muir-Wood and Cooper, 1960 [replaced by Cosiellarina]

Costellarina Muir-Wood and Cooper, 1967, in Cooper and Muir-Wood, 1967:808 [new name for Castellaria]

Costellirostra Cooper, 1942:231

Costellispirifer Boucot, 1973:51

Costiferina Muir-Wood and Cooper, 1960:277

Costinifera.—Gobbett, 1963 [misspelling of Costiferina]

Costinorella Dagys, 1974:101

Costirhynchia Buckman, 1914 [nomen nudum]; 1917:39

†Costirhynchia Dagys, 1974 [replaced by Coshrhynchopsis]

Costirhynchopsis Dagys, 1977b:139 [new name for Costirhynchia Dagys, 1974]

Costisorthis Havlíček, 1974:170

Costispinifera Muir-Wood and Cooper, 1960:217

Costispirifer Cooper, 1942:232

Costispiriferina Dagys, 1974:127

Costistrzcklandia Amsden, 1953:143

Costistrophonella Harper and Boucot, 1978a:99

Costoconcha Ching, Sun, and Ye, 1979:193

Craigella Reed, 1935:353

Cranaena Hall and Clarke, 1893:297

*Cranaenella Fenton and Fenton, 1924:129 [= Cranaena]

Crania Retzius, 1781:72

Cranicella Rafinesque, 1815 [nomen nudum]

†Craniella Oehlert, 1888 [replaced by Petrocrania]

Craniops Hall, 18596:84

Craniotreta Termier and Monod, 1978:149

Craniscus Dall, 18716:27

†Cranopsis Dall, 1871 [replaced by Ancistrocrani a]

Craspedalosia Muir-Wood and Cooper, 1960:82

Craspedelia Cooper, 1956c:773

Craspedona Cooper and Grant, 1975:881

Crassatrypa Mizens, 19776:54

*Crassiorina Havlíček, 1950:36 [= Cryptothyris]

Crassipunctatrypa Mizens and Rzonsnitzkaja, 1979:63

Crassumbo Carter, 1967a:408

Cremnorthis Williams, 1963:378

Crenispirifer Stehli, 1954:348

Cretirhynchia Pettitt, 1950:1

Cricosia Cooper, 1973c:384

Crinistrophia Havlíček, 1967a:134

*Criopus Poli, 1791:34 [= Crania]

†Crispella Kozlowski, 1929 [replaced by Howellella]

*Cristiferina Cooper, 1956c:961 [= Paucicrura]

Crossacanthia Gordon, 1966:581

Crossalosia Muir-Wood and Cooper, 1960:76

Crozonorthis Melou, 1976:700

Crunalina Smirnova, 1966:32

Cruratula Bittner, 1890:66

Cruricella Grant, 1976:187

Cruricoelia Sykes, 1964 [nomen nudum]

Crurirhynchia Dagys, 1961a:96

Crurithyris George, 1931:43

Cryopus.—Deshayes, 1836 [misspelling of Criopus]

Clyptacanthia White and St. John, 1867:119

Cryptatrypa Siehl, 1962:196

Cryptonella Hall, 1861:101

Cryptonema.—Bigsby, 1868 [misspelling of Cryptonella]

Cryptopora Jeffreys, 1869:136

Cryptoporella Bitner and Pisera, 1979:71

Cryptorhynchia Buckman, 1914 [nomen nudum] 1917:66

Cryptospirifer Grabau, 1931c:405

Cryptothyrella Cooper, 1942:233

Cryptothyris Bancroft, 1945:223

Cryptotreta Pelman, 1977:53

Ctenalosia Cooper and Stehli, 1955:470

(Ctenochonetes) Racheboeuf, 1976:52 Esubgenus of Strophochonetes]

Ctenokoninckina Xu, 1978b:283

Cubanirhynchia Kamyschan, 1968:57

Cubanothyris Dagys, 1959a:35

Cudmorella Allan, 1939:242

Cumberlandma Boucot, 1975:371

Cuneirhynchia Buckman, 1914 [nomen nudum] 1917:35

Cunolites Defrance, 1821 [nomen nudum]

Cuparius Ross, 1971:126

Cupularostrum Sartenaer, 1961c:2

Curranella.—Chatterton, 1973 [error for Resserelta]

Curticia Walcott, 1905:319

Curtirhynchia Buckrnan, 1914 [nomen nudum]; 1917:36

Cyclacantharia Cooper and Grant, 1969:7

Cycladigera Havlíček, 19716:230

Cyclocoelia Foerste, 1909a:227

Cyclomyonia Cooper, 1956c:975

†Cyclorhina Hall and Clarke, 1893 [replaced by Callipleura]

Cyclospira Hall and Clarke, 1893:146

Cyclothyris McCoy, 1844:150

Cyclus Barrande, 1879 [nomen nudum; = Paterula]

Cydimia Chatterton, 1973:131

Cymatnrhynchia Buckman, 1914 [nomen nudum] 1917:53

Cymbidium Kirk, 1926:3

Cymbi stropheodonta Harper and Boucot,1978c 38

Cymbithyris Cooper, 19526:5

Cymostrophia Caster, 1939:39

Cyphomena Cooper, 1956c:841

(Cyphomenoidea) Cocks, 1968:316 [subgenus of Cyphomena]

Cyphotalosia Carter, 1967a:282

Cyphoterorhynchus Sartenaer, 1965b:55

Cyrolexis Grant, 1965:89

Cyrtaena.—Hall, 1867 [misspelling of Cyrtina]

Cyrtalosia Termier and Termier, 1970:455

Cyrtella Fredericks, [1924a]:312

Cyrtia Dalman, 1828:92

Cyrtina Davidson, 1858:66

Cyrtinaella Fredcricks, 1916:18

*Cyrtinaellina Fredericks, 1926:414 [= Cyrtina]

†Cyrtinopsis Fredericks, 1916 [replacement by Davidsonella Fredericks invalid, Davidsonella preoccupied; replaced by Davidsonina]

Cyrtinopsis Scupin, 1896:247

Cyrtiopsis Grabau, 1923:194

Cyrtoni scus Boucot and Harper, 1968:172

Cyrtonotella Schuchert and Cooper, 1931:243

Cyrtospirifer Nalivkin, 1924, in Fredericks, [1924a1:312

†Cyrtotheca Bittner, 1890 [replaced by Thecocyrtella]

Cyrtothyris Middlemiss, 1959:123

Dabashanospira Fu, 1979 [nomen nudum]

Dactylogonia Ulrich and Cooper, 1942:624

Dactylotreta Rowell and Henderson, 1978:3

Daghanirhynchia Muir-Wood, 1935:82

Dagnachonetes Afanasjeva, 1978:66

Dalaia Plodowski, 1968:256

*Dalejina Havlíček, 1953:5 [= Mendacella]

*Dalejodiscus Havlíček, 19616:449 [= Plectodonta]

Dalerhynchus Bai, 1978, in Yoh and Bai, 1978:54

Dalinuria Lee and Gu, 1976:245

Dalligas Steinich, 1968b:336

Dallina Beecher, 1893:382

Dallinella Thomson, 1915a:75

Dallithyris Muir-Wood, 1959:303

Dalmanella Hall and Clarke, 1892:205

*Dalmanellopsis Khalfin, 1948:208 [= Levenea]

Danella Pajaud, 1966a:70

(Danocrania) Rosenkrantz, 1964:515 [subgenus of Crania]

Darvasia Licharew, 1934a:213

Dasyalosia Muir-Wood and Cooper, 1960:77

Dasysaria Cooper and Grant, 1969:9

Datangia Yang, 1977:369; 1978a:122; 19786:268

†Davidsonella Fredericks, 1926 [invalid new name for Cyrtinopsis Fredericks, 1916, Davidsonella preoccupied; replaced by Davidsonina]

Davidsonella Munier-Chalmas, 1880:279

†Davidsonella Waagen, 1885 [replaced by Lakhmina]

Davidsonia Bouchard, 1849:92

Davidsoniatrypa Lenz, 1968:182

Davidsonina Schuchert and LeVene, 1929:120 [new name for Davidsonella Fredericks, 1926]

Daviesiella Waagen, 1884:613

Davoustia Racheboeuf, 1976:68

Dawsonelloides Boucot and Harper, 1968:165

Daya.—Koken, 1896 [misspelling of Dayial]

Dayia Davidson, 1881c:291

*Dearbornia Walcott, 1908:78 [= Acrothele]

Decoropugnax Havlíček, 1960:244

Decurtella Gaetani, 1966:344

Dedzetina Havlíček, 1950:33

Delepinea Muir-Wood, 1962:99

Deltachania Waterhouse, 1971, in Bamber and Waterhouse, 1971:217

Dellarina Cooper and Grant, 1976a:2012

Delmthyris.—Herrmannsen, 1846 Imisspelling of Delthyrzs]

* Dellatreta Ulrich, 1916 [nomen nudum]; 1926, in Butts, 1926:100 [= Polytoechia]

Delthiridaea.—Gray, 1848 [misspelling of Delthyridaea]

Delthyridaea McCoy, 1844 [nomen nudum]

Delthyridea.—Agassiz, 1846 [misspelling of Delthyridaea]

Delthyris Dalman, 1828:120

* Deltorthis Ulrich, 1927 [nomen nudum; = Polytoechial Demonedys Grant, 1976:66

** Denckmannella Schuchert and LeVene, 1929 [new name for Denckmannza]

†Denckmannia Holzapfel, 1908 [replaced by Macroplectane and Denckmannella]

** Dentalrypa Breivel, 1959 [= Vagranza]

Denticuliphoria Licharew, 1956, in Kiparisova et al., 1956: 57

Dentospiriferina Dagys, 1965:109

* Deothossza Gatinaud, 1949:488 [= Cyrtospirifer]

Derbyaeconcha Licharew, 1934, in Zittel, 1934:507

Derbyella Grabau, 19316:270

Derbyia Waagen, 1884:594

Derbyina Clarke, 1913b:212

t Derbyina Grabau, 1931 [replaced by Grabauellina]

Derbyoides Dunbar and Condra, 1932:115

Derela Elliott, 1959:147

Desatrypa Copper, 1964:363

Desmoinesia Hoare, 1960:226

Desmorthis Ulrich and Cooper, 1936b:624

Desquamatia Alekseeva, 1960:421

Destombesium HavIr¿ek, 1971c:58

Devonalosia Muir-Wood and Cooper, 1960:84

Devonamphistrophia Harper and Boucot, 1978b:159

(Devonarza) Biernat, 1966:77 [subgenus of Eodevonaria]

Devonochonetes Muir-Wood, 1962:43

Devonogypa Havlfeek, 1951:3

Devonoproductus Stainbrook, 1943a:55

Diabolirhynchia Drot, 1963:111

Diambonia Cooper and Kindle, 1936:356

Diandongia Rong, 1974:113

Dzaphelasma Ulrich and Cooper, 1936b:629

Diaphragrnus Girty, 1910:218

Dzazoma Dtirkoop, 1970:195

Dicaelosia.—King, 1850 [misspelling of Dicoelosza]

Dicamara Hall and Clarke, 1893:73

Dicamaropsts Amsden, 1968:85

Dicellomus Hall, 1871a:3

Diceromyonia Wang, 1949:35

Dichospirifer Brice, 1970:192

Dzchozygopleura Renouf, 1972:121

Dzchpsites Rafinesque, 1831 [incertae sedis]

Dzchsma Rafmesque, 1831 [incertae sedo]

Dicoelosia King, 1850:106

coeloshophia Wang, 1955:351

* Dicraniscus Meek, 1872:280 [= Trzplesia]

Dicrosia Cooper, 1978:12

Diclyoclostoidea Wang and Ching, 1964, in Wang et al., 1964:265

Dictyoclostus Muir-Wood, 1930:103

Diciyonathyris Xu, 1978b:287

Dictyonella Hall, 1868:274

Dictyonina Cooper, 1942:228 [new name for

lphidella Walcott, 19121

Diclyonites Cooper, 1956c:187

*Diayostrophia Caster, 1939:42 [= Megastrophia]

Dictyothyris Douvillé, 1879:267

Dictyothyropsis Barczyk, 1969:66

Dicystoconcha Termier, Termier, Lapparent, and Marin, 1974:123

Dzdymelasma Cooper, 1956c:615

Didymoparcium Lene, 1977:62

Didymospira Salomon, 1895 [a group term, noi generic]

Didymothyns Rübel and Modzalevskaja, 1967:238

Dielasma King, 1859:260

Dielasmella Weller, 1911:447

Dielasmina Waagen, 1882:359

* Dzelasmoides Weller, 1911:444 [= Dielasma]

** Dienerella Reed, 1931 [= Waageniies]

** Dienerina Ozaki, 1931 [= Elivina]

Dierisma Ching, Sun, and Ye, 1979:133

Diestothyris Thomson, 1916b:504

* DVgilia Gregorio, 1930a:32 [= Leptodus]

Dzgnomia Hall, 1871a:2 [nomen nudum]; 1872, plate 13.

Digonella Muir-Wood, 1934:550

Diholkorhynchia Yang and Xu, 1966:24

Dimegelasma Cooper, 1942:232

Dimerella Zittel, 1870:222

* Dinapophysia Maillieux, 1935.5 [= Straelenia]

Dinarella Bittner, 1892:25

Dinarispira Dagys, 1974:131

Dinobolus Hall, 1871a:4

(Dinorthis) Hall and Clarke, 1892:195 Isubgenus of Plaesiomys]

Diorisiella Bittner, 1890:299

Diorthelasma Cooper, 1956c:997

* Diorthis Kobayashi, 1937 [nomen nudum; = Dinorthis]

Diparelasma Ulrich and Cooper, 1936b:623

Diphyites Schroeter, 1779; Hermannsen, 1846 [nonbinomial]

Diplanus Stehli, 1954:299

Diploriorthrs Mitchell, 1977:30

Diplospiretia Bittner, 1890:297

Diraphora Bell, 1941:243

Dirinus McCoy, 1844:44

Donna Lamarck, 1819:237

Discimsca Dall, 1871b:37

* Discinolepis Waagen, 1885:750 [= Schizopholis]

Discinopsis Matthew, 1892, in Hall and Clarke, 1892:106

Discomyorthis Johnson, 1970b:84

Discotreta Ulrich and Cooper, 1936b:619

Discradisca Stenzel, 1964:627

Disculina Deslongchamps, 1884:231

Dispirzferina Siblik, 1965:79

Ditreta Biernat, 1973:65

Divaricosta Cooper and Grant, 1969:11

Dmitria Sidiachenko, 1961:80

Dmitrispirifer Ljaschenko, 1973:126

Dnestrma Nikiforova and Modzalevskaja, 1968:206

Doleroides Cooper, 1930:375

Dolerorthis Schuchert and Cooper, 1931:244

Doloresella Sando, 1957:122

Donella Rotai, 1931:29

Dongbaella Ching and Ye, 1979:127

Dorashamia Sarytcheva, 1965, in Ruzhentsev and Sarytcheva, 1965:217

Dorsisinus Sanders, 1958, in Easton et al., 1958:53

Dorsoplicathyris Almeras, 1971:437

Dorsoscyphus Roberts, 1971:50

Dorytreta Cooper, 1956c:666

(Dotswoodia) McKellar, 1970:19 [subgenus of Whidbornella]

Douvillina Oehlert, 1887, in Fischer, 1887:1282

Douvillinaria Stainbrook, 1945:23

Douvillinella Spriestersbach, 1925:432

Douvillinoides Harper and Boucot, 19786:152

Dowhatania Waterhouse and Gupta, 19786:127

Drabodiscina Havlieek, 1972:231

Draborthis Marek and Havlieek, 1967:280

Drabovia Havlieek, 1950:45

Drabovinella Havlíček, 1950:50

Diarios Steinich, 1967:1146

Drahanorhynchus Havlíček, 1967a:203

Drahanostrophia Havlíček, 1967a:202

Drepanorhyncha Cooper, 1956c:627

* Drummuckina Bancroft, 19496:12 [= Strophomena]

Duartea Mendes, 1959:59

Dubaria Termier, 1936:1266

Dubioleptina Havlíček, 1967a:70

* Dulankarella Rukavischnikova, 1956:135 [= Leptestiina]

Dundrythyris Almeras, 1971:189

Durranella Percival, 1979a:96

Dwyeella Boucot, 1975:370

Dushanirhynchia Wang and Zhu, 1979:42

Dyctionella.—Oehlert, 1887 [misspelling of Dictyonella]

Dyoros Stehli, 1954:312

Dyschrestia Grant, 1976:101

Dyscolia Fischer and Oehlert, 1890:71

Dyscritothyris Cooper, 1979:15

Dysoristus Bell, 1944, in Lochman and Duncan, 1944:146

Dysozistus.—Gorjansky, 1960 [misspelling of Dysoristus]

Dylicospirifer Johnson, 19666:1043

Dzieduszyckia Siemiradzki, 1909:85

Dzirulina Nutsubidze, 1945:188

Eatonia Hall, 1857:90

Eatonioides McLearn, 1918:138

Eccentricosta Berdan, 1963:254

Echinalosia Waterhouse, 19676:167 [new name for Multispinula Waterhouse, 1966]

Echinaria Muir-Wood and Cooper, 1960:248

Echirzauris Muir-Wood and Cooper, 1960:222

(Echinirhynchia) Childs, 1969:73 [subgenus of Acanthorhynchia]

Echinocoelia Cooper and Williams, 1935:844

Echinocoeliopsis Hamada, 1968b:17

Echinoconchus Welter, 1914:138

Echinospirifer Ljaschenko, 1973:109

Echinosteges Muir-Wood and Cooper, 1960:102

Ecnomiosa Cooper, 1977:129

Ectertoglossa Sinclair, 1945:63

Ectochoristites Campbell, 1957:71

Ectoposia Cooper and Grant, 19766:2898

Ectorensselandia Johnson, 1973b: 1105

(Ectorhipidium) Boucot, 1975 [nomen nudum; (Ectorhi pidium) Boucot and Johnson, 1979]

(Ectorhipidium) Boucot and Johnson, 1979:102 [subgenus of Rhipidium]

‡Edreja Koneva, 1979:49

Edriosteges Muir-Wood and Cooper, 1960:103

Ehlersella Boucot and Johnson, 1966a:569

Eichwaldia Billings, 1858:192

Eifelalrypa Copper, 1973:497

(Eilotreta) Amsden, 1968:36 [subgenus of Onychotreta]

Elasmothyris Cooper, 1956c:984

Elassonia Cooper and Grant, 1976a:1935

Elenchus Aleksandrov, 1973:118

Eleutherocrani a Huene, 1899:212

Eleutherokornma Crickmay, 1950:219

†Elina Fredericks, 1924 [replaced by Elinoria]

* Elinoria Cooper and Muir-Wood, 1951:195 [new name for Elusa; = Brachythyrina]

Elita Fredericks, 1918:87

Eliva Fredericks, [1924a]:319

Elivella Fredericks, [1924a]:316

*Elivina Fredericks, [1924a]:314 [= Spirzferella]

Elkania Ford, 1886:325 [new name for Billingsia]

Ella Fredericks, 1918:87

Elliottella Stehli, 1955b:711 [new name for Psilanotes]

Elliottina Pajaud, 1963:996

* Ellzpsothyris Sahni, 1925:371 [= Carneithyris]

Elliptoglossa Cooper, 1956c:242

Elliptostrophia Havlíeek, 19636:225

Elmaria Nalivkin, 1947:133; 1951:28

*Elsaella Alichova, 1960:192 [new name for Bekkerella Rosenstein, 1943; = Heterorthina]

Elymospirifer Wang, 1974, in Wang et al., 1974:40

Elyta.—Ivanova, 1960 [misspelling of Elita]

Elytha.—Fredericks, 1924 [misspelling of Elita]

Elythyna Rzonsnitzkaja, 1952:61

Emanuella Grabau, 1923:192

Emethyris Xu, 19786:301

Enallosia Cooper and Grant, 1976b:2859

Enanizosphen Whidborne, 1893:97

Enantzosphenella Johnson, 1974:67

Enchondrospirifer Brice, 1970:175

** Encuclodema Foerste, 1912 [invalid new name for Cyclocoelza, Cyclocoelia not preoccupied]

Enigmalosia Czarniecki, 1969:272

Enteles.—Schellwien, 1892; Clark, 1903 [misspelling of Enteletes]

Enteletella Licharew, 1926:719

Enteletes Fischer de Waldheim, 1825:6

Entelcima Schuchert and Cooper, 1931:247

Enteletoides Stuckenberg, 1905:60

Eoamphistrophia Harper and Boucot, 1978b:154

Eoanastrophza Nikiforova and Sapelnikov, 1973:65

Eobrachythyris Brice, 1970:182

Eochorzetes Reed, 1917:915

Eochoristiles Chu, 1933:29

Eocoelia Nikiforova, 1961, in Nikiforova and Andreeva, 1961:252

Eoconcha Cooper, 1951:4

Eoconchidium Rozman, 1967:62

Eoconulus Cooper, 1956c:283

Eocramatia Williams, 1974:129

Eodallzna Elliott, 1959:146

Eodalmanella Havlíček, 1950:24

Eodevonaria Breger, 1906:534

Eodinobolus Rowell, 1963:37

Eoglossinotoechia Havlíček, 19596:81

Eogryphus Hertlein and Grant, 1944:89

Eohemithiris Hertlein and Grant, 1944:55

Eohemithyris.—Cooper, 1959 [rejected emendation of Eohemzthirzs]

Eohowellella Lopushinskaja, 1976:79

Eokarpinskia Rzonsnitzkaja, 1964:103

Eokirkidium Khodalevich and Sapelnikov, 1970:196

Eolacazella Elliott, 1953:694

Eolissochonetes Hoare, 1960:220

Eolyttonia Fredericks, [1924191:25

Eomarginifera Muir-Wood, 1930:103

(Eornarginiferina) Brunton, 1966:230 [subgenus of Eornarginifera]

Eomariziziopsis Sokolskaja, 1941:78

(Eomegastrophia) Cocks, 1967:260 [subgenus of Megastrophza]

Eonaliokinia Vladimirskaya, 1978 [nomen nudurn]

* Eoobolus Matthew, 1902:97 [= Obolus]

Eoorthis Walcott, 1908:103

Eoparaphorhyrzchu.s Sartenaer, 1961a:2

Eopentamerifera Boucot, 1975 [nomen nudum]

Eoperegrinella Ager, 1964:61

Eopholidostrophia llarper, Johnson, and Boucot, 1967:411

Eoplectodonta Kozlowski, 1929:30

Eoplicanopha Boucot and Harper, 1968:168

* Eoreticularia Nalivkin, 1924, in Fredericks, [1924a]:314 [= Reticularropsis]

Eorhipidomella Hints, 1971:266

Eoschuchertella Gratsianova, 1974:83

Eoseptaliphoria Ching and Sun, 1976, in Ching et al., 1976: 294

Eosophragmophora Wang, 1974, in Wang et al., 1974:36

Eosotrematorthis Wang, 1955:336

Eospmatrypa Copper, 1973:496

Eospirzfer Schuchert, 1913, in Zittel, 1913:411

Eospiriferina Graban, 1931a:494

(Eospirzgerina) Boucot and Johnson, 1967a:90 [subgenus of Spirzgerina]

Eostrophalosza Stainbrook, 1943a:58

(Eostropheodonta) Bancroft, 1949a:9 [subgenus of Strophodonta]

†Eostrophia Ulrich and Cooper, 1936 [replaced by Cambrotrophia]

Eostrophomena Walcott, 1905:256

(Eostrophonella) Williams, 1950:282 [subgenus of Strophonella]

Eosyringothyris Stainbrook, 1943b:431

Eousella Ovtsharenko, 1976:26

** Epacroplecia \Williams, 1962 1= Crazgella]

Ephippelasma Cooper, 1956c:261

Epicelia Grant, 1972:224

Epicyrta Deslongchamps, 1884:275

Epithyris Phillips, 1841:55

Epithyroides Xu, 19786:306

Epithyrus.—Paetel, 1875 [misspelling of Epithyris]

Epitomyonia Wright, 1968:128

(Equirostra) Cooper and Muir-Wood, 1951:195 [new name for Isorhynchus; subgenus of Porambonztes]

Erectocephalus Xian, 1978a:334

Eremithyrzs Brügge, 1973:197

Eremotoechia Cooper, 1956c:513

Eremotrema Cooper, 1956c:960

Ericzatza Muir-Wood and Cooper, 1960:172

Eridrnalus Branson, 1966:75

Eridorthis Foerste, 1909a:223

Erymnaria Cooper, 1959:64

Erymnia Cooper, 1977:92

Espelta Nilova, 1965:102

Estlandia Schuchert and Cooper, 1931:245

Estonzrhynchia Schmidt, 1954:236

Etheridgina Oehlert, 1887, in Fischer, 1887:1278

Etymothyris Cloud, 1942:59

Eucalathis Fischer and Oehlert, 1890:72

Eucharitina Schmidt, 1955:121

Eudesella Munier-Chalmas, 1880:279

Eudesia King, 1850:144

Eudesites Rioult, 1966:74

Eudoxina Fredericks, 1929:382

Euidothyris Buckman, 1915 [nomen nudum]; 1917.101

Eumetabolotoechia Sartenaer, 1975:3

Eumelria Hall, 1863:54

* Eunella Hall and Clark, 1893:290 [= Cranaena]

†Eunoa Clarke, 1902 [replaced by Oxlosia]

** Euobolus Mickwitz, 1896 [= Obolus]

Euorthisina Havlíček, 1950:16

** Euproductus Whitehouse, 1928 [= Linoproduaus]

Euractinella Bittner, 1890:303

Eurekaspirifer Johnson, 1966b:1045

** EurItynchonella Leidhold, 1920 [= Rhynchonella]

Eurycolporhynchus Sartenaer, 1968d:566

Euryspirifer Wedekind, 1926:202

* Eurytatospirifer Gatinaud, 1949:487 [= Cyrtospirifer]

Eurythyris Cloud, 1942:63

Eurytreta Rowell, 1966:9

Euterebratula Makridin, 1954 [nomen nudum]

Euthyris Quenstedt, 1869 [rejected name proposed to replace Athyris]

Euxinella Moisseiev, 1936:41

Evanescirostrum Sartenaer, 1965a:8

Evenkina Andreeva, 1961, in Nikiforova and Andreeva, 1961:96

Evenkinorthis Yadrenkina, 1977:27

Evenkorhynchia Rozman, 1969:102

(Exatrypa) Copper, 1967a:123 [subgenus of Spinalrypina]

Excavalorhynchza Jin and Fang, 1977:44

Exceptothyris Sui-Proti, 1971:37

Faksethyris Asgaard, 1971:385

Falafer Grant, 1972:217

Fallax Atkins, 1960:72

Fallaxispirifer Su, 1976:226

Falsabypa Havlíček, 1956:584

Famatinorthis Levy and Nullo, 1973:146

Fardenia Lamont, 1935:311

Fascicosta Stehli, 1955c:71

Fascicostella Schuchert and Cooper, 1931:246

Fasczculina Cooper, 19526:7

Fascifera Ulrich and Cooper, 1942:620

Fascistropheodonta Harper and Boucot, 1978c:24

Fascizetina Havlíček, 1975:232

Felinotoechia Havlíček, 1961a:73

Fenestrirostra Cooper, 1955a:57

Fenxiangella Wang, 1978:224

Ferganella Nikiforova, 1937:77

Ferganoproduclus Galitzkaja, 1977:33

Ferrax Havheek, 1975:231

Ferzythyris Almeras, 1971:218

Fezzanoglossaliavlleek, 1973, in HavIleek and Massa, 1973: 273

Ffynnonia Neuman and Bates, 1978:592

Fibulistrophia Garcia-Alcalde, 1972b:43

Fidespirifer Ljaschenko, 1973:129

Filiconcha Dear, 1969:299

†Fimbriaria Muir-Wood and Cooper, 1960 [replaced by Fimbrinia]

Firnbrinia Cooper, 1972a:450 [new name for Fimbriaria]

Fimbriothyris Deslongchamps, 1884:273

Fimbri spirifer Cooper, 1942:231

Finkelnburgia Walcott, 1905:277

Finospirifer Ying, 1979 [nomen nudum]

Fissirhynchia Pearson, 1977:48

Fissirostra.—Orbigny, 1847 Imisspelling of Fissurirostra]

* Fissurirostra Orbigny, 1847:269 [= Trigonosemus]

Fistulogonites Neuman, 1971:117

Fitzroyella Veevers, 1959:104

Flabellzrhynchia Buckman, 1914 [nomen nudum]; 1917:65

Flabellocyrtia Chorowicz and Termier, 1975:235

Flabellothyris Deslongchamps, 1884:263

Flabellulirostrum Sartenaer, 1971:5

†Fletcherina Stehli, 1961 [replaced by Fletcherithyris]

Fletcherithyris Campbell, 1965:24 [new name for Fletcherma]

Fletcherithyroides Dagys, 1977a:14

Flexaria Muir-Wood and Cooper, 1960:259

Fluctuaría Muir-Wood and Cooper, 1960:304

Foliomena HavIleek, 1952:413

Fordinia Walcott, 1908:65

Forma Gregorio, 1930a:28

Formosarhynchia Seifert, 1963:177

(Fossatrypa) Mizens and Rzonsnitzkaja, 1979:62 [subgenus of Munieratripa]

Foveola Gorjansky, 1969:30

Franklinella Lenz, 1973:1405

Fredericksia Paeckelmann, 1931b:48 [new name for M’erija]

* Frenula Dall, 1871a:55 [= Macandrema]

Frenulzna Dall, 1895:724

Frieleia Dall, 1895:714

Fulcriphoria Carls, 1974:176

Furcirhynchia Buckman, 1914 [nomen nudum]; 1917:59

Furcitella Cooper, 1956c:876

Fusella McCoy, 1844:128

Fusichonetes Liao, 1979 [nomen nudum]

Fusiproductus Waterhouse, 1975:12

FusirhynchM Dagys, 1968:68

Fusispirifer Waterhouse, 1966:43

Garella Williams, 1962:222

Gacina Stchli, 19616:458

* Gagriella Moisseiev, 1939:193 [= Kolhidaella]

Galateastrophia Harper and Boucot, 1978c:25

Galeatella Muir-Wood and Cooper, 1960:174

†Galeatella Sapelnikov and Rukavischnikova, 1975 [replaced by Galeatellma]

Galeatellina Sapelnikov and Rukavischnikova, 1976:122 [new narne for Galeatella Sapelnikov and Rukavischnikova, 1975]

Gaifiennithyris Rollet, 1966:304

Gamdaella Miloradovich, 1947:92

Gamoneies Isaacson, 1977a:168

Gamphalosia Stainbrook, 1945:33

Gannama Fu, 1979 [nomen nudum]

Gasconsia Northrop, 1939:161

Gaspesza Clarke, 1907:277

Gastrodetoechia Sartenaer, 1965a:2

Gelorna Licharew, 1936a:264

Gegenella Lee and Gu, 1976:237

Geinitzia Hall, 1889 [nomen nudum = Conotreta]

Geliclorthina Havgek, 1974:168

Gelidorthis Havlíeek, 1968:125

Gemerithyris Siblík, 1977:203

Gemmarcula Elliott, 1947:145

†Gemmellaria Fabiani and Ruiz, 1933 [invalid new name for Canauaria, Gemmellaria preoccupied; replaced by Sicelia]

Gemmellaroia Cossman, 1898:77 [new name for Megarhynchus]

*Gemmellaroiella Mabuti, 1937:16 [= Gemmellaroia]

Gemmulicosta Waterhouse, 1971, in Bamber and Waterhouse, 1971:210

Geniculifera Muir-Wood and Cooper, 1960:187

(Geniculomclearnites) Harper and Boucot, 1978b: 132 [subgenus of Mclearnites]

Georgethyris Minato, 1953:68

Geranocephalus Crickmay, 1954:157

Gerassimovia Licharew, 1956, in Kiparisova et al., 1956:59

Gerothyris Struve, 1970:537

Geyerella Schellwien, 1900:12

†Geyeria Carapezzi and Schopen, 1899 [replaced by Carapezzia]

Gibberostrophia Harper and Boucot, 1978a:79

Gibbirhynchra Buckman, 1914 [nomen nudum] 1917:43

Gibbithyris Sahni, 1925:372

(Gibbochonetes) Aisenverg, 1971:70 [subgenus of

Delepmea] Gibbospirifer Waterhouse, 1971, in Bamber and Waterhouse, 1971:221

†Gigantella Sarytcheva, 1928 [replaced by Gigantoproductus]

Gigantoproductus Prentice, 1950:437 [new nome for Gigantella]

Gigantorhynchus Sapelnikov and Malygina, 1977:62

Gigantolhyris Seifert, 1963:180

Gilledia Stehli, 1961a:451

Giraldibella Havlíček, 1977a:87

Giraldiella Bancroft, 1949a:5

Girlasia Gregorio, 1930a:21

Girtyella Weller, 1911:443

Gisilina Steinich, 1963:735

Gjelisparujera Ivanova, 1975:86

Glabrichonetina Waterhouse, 1978:130

Glaciarcula Elliott, 1956:285

Gladiostrophia Havlíček, 1967a:141

Glassia Davidson, 1881b:11

Glassina Hall and Clarke, 1893:97

Glazewskia Pajaud, 1964 [nomen nudum]; 1964:260

Glendonia McClung and Armstrong, 1978:2

Globiella Muir-Wood and Cooper, 1960:305

Globirhynclua Buckman, 1914 [nomen nudum]; 1917:48

Globispirifer Tachibana, 1964:37

Globithyris Cloud, 1942:82

Globosobucina Waterhouse and Piyasin, 1970:123

Globosochonetes Brunton, 1968:48

Glossella Cooper, 1956c:228

Glosseudesia Lobatscheva, 1974:146

Glosshypothyndina Rzonsnitzkaja, 1978:180

†Glossina Phillips, 1848 [replaced by Palaeoglossa]

(Glossinotoechta) HavlíCek, 1959b:79 [subgenus of Glossirzutus]

Glossinulina Johnson, 1975:958

Glossinulus Schmidt, 1942:394

Glossoleptaena Havheek, 1967a:115

Glossorthis Öpik, 1930:82

**Glossostrophia Williams, 1950 [= Leptodontella]

Glossothiris.—Gregorio, 1891 [misspelling of Glossothyris]

**Glossothyris Douvillé, 1879 [= Nucleata]

Glossothyropsis Girty, 1934:251

Glottidia Dall, 1870:157

Glyptacrothete Termier and Termier, 1974:45

Glyptambonites Cooper, 1956c:713

Glypierina Boucot, 1970:984

Glyplias Walcott, 1901:675

†Glyptoglossa Cooper, 1956 [replaced by Glyptoglossella]

Glyptoglossella Cooper, 1960:601 [new name for Glyptoglossa]

Glyptomena Cooper, 1956c:881

Glyptoria Cooper, 1976:281

Glyptorthis Foerste, 1914:258

Glypospirifer Hou and Xian, 1975:72

Glypiosieges Cooper and Grant, 1975:877

Glyptairophia Ulrich and Cooper, 1936b:627

Gmelinmagas Marinelarena, 1964:268

Gnathorhynchia Buckman, 1914 [nomen nudum] 1917:29

Goleomixa Grant, 1976:180

Gonambonites Pander, 1830:77

Gondolina Ching and Liao, 1966, in Wang et al., 1966:412

Cantarina Cooper and Grant, 1969:2

Goniclis Rafinesque, 1819; 1831 [nomina nuda]

*Goniocodia Hall, 1861:101 [= Pentagonia]

Goniophoria janischewsky, 1910:81

Goniorhynchia Buckman, 1914 [nomen nudum]; 1917:52

Goniothyrella Tchorszhewsky, 1973; 1974 [nomina nuda]

Goniothyris Buckman, 1914 [nomen nudum]; 1917:117

Goniotrema Ulrich and Cooper, 1936b:626

Gonotrema Rafinesque, 1820 [nomen nudum]

Gorgostrophia Havlíček, 1967 a:136

(Golatrypa) Struve, 1966:129 [subgenus of Atrypa]

Gotlandia Dall, 1870 [new name for Trimerella, withdrawn by Dall in 1871]

*Grabauellina Licharew, 1934, in Zittel, 1934:507 [new name for Derbyina Grabau, 1931; = Derhyia]

*Grabauicyrtiopsis Gatinaud, 1949:490 [= Cyrtiopsis]

*Grabauispirifer Gatinaud, 1949:413 [= Cyrtospirifer]

Gracianella Johnson and Boucot, 1967:868

Gracilotoechia Baranov, 1977:78

Grammeiaria Cooper, 1959:58

Grammorhynchus Roberts, 1971:144

Grandaurispma Muir-Wood and Cooper, 1960:306

Grandirhynchia Buckman, 1914 [nomen nudum]; 1917:40

*Granchspirifer Yan, 1959:116 [= Unispirifer]

Grantonia Brown, 1953:60

Granulirhynchia Buckman, 1914 [nomen nudum] 1917:64

Grasirhynchia Owen, 1968:19

Graticulatia Gupta and Waterhouse, 1979 [nomen nudum]

**Gratiosina Grant, 1976 [= Transennatia]

Grayma Boucot, 1975:354

Greenlieldia Grabau, 1910, in Grabau and Sherzer, 1910: 148

*Greenockia Brown, 1952:91 [= Hemtplethorhynchus]

Grorudia Spjeldnaes, 1957:61

Gruenewaldtia Tschernyschew, 1885:46

Grumantia Ustritsky, 1963, in Ustritsky and Tschernjak, 1963:70

Gryphus Megerle von Mühlfeld, 1811:64

Guangshunia Xian, 1978a:318

Guangxiispirifer Xian, 1978a:316

Gubleria Termier and Termier, 1960:241

**Guerichella Paeckelmann, 1913 [invalid new name for Adolfia, Adolfia not preoccupied]

*Guerichia Wedekind, 1926 [nomen nullum; = Adolfia]

Guicyrtia Wang and Zhu, 1979:59

Guizhouella Yang, 1978a:124

Gunnarella Spjeldnaes, 1957:149

Gurmingblandella Percival, 1979a:111

Gusarella Prosorovskaja, 1962:111

*Guseriplia Dagys, 1963:107 [= Sinucosta]

Guttasella Neuman, 1977:31

Gwynia King, 1859:258

Gypidia Dalman, 1828 [invalid name; = Pentamerus] Gypidium.—Beyrich, 1837 [misspelling of Gypicha]

Gypidula Hall, 18676:163

Gypidulella Khodalevich and Breivel, 1959, in Khodalevich et al., 1959:26

Gypicklina Rzonsnitzkaja, 1956, in Kiparisova et al 1956: 49

Gypospirifer Cooper and Grant, 1976a:2210

Gyrosoria Cooper, 1973c:386

Gyrothyris Thomson, 1918:28

Hadrorhynchia McLaren, 1961:3

Hadroireta Rowell, 1966:12

Hadyrhyncha Havlíček, 1979:98

Hagabirhynchia jefferies, 1961, in Hudson and jefferies, 1961:5

Hallina Winchell and Schuchert, 1892:292

Halorella Bittner, 1884:107

Halorellina Xu, 1978b:276

Halorelloidea Ager, 1960:159

Hamburgia Weller, 1911:446

* Hamlelella Hayasaka, 1953:92 [= Orthothetina]

Hamlingella Reed, 1943:78

Hamplonina Rollier, 1919:360

Hanaeproductus Ficner and Havlíček, 1978:65

Hansotreta Krause and Rowell, 1975:46

Hanusitrypa Havlíček, 19676:443

Haplospirifer Lee and Gu, 1976:280

Harknessella Reed, 1917:862

Harpidium Kirk, 1925:2

Harringtonina Boucot, 1972, in Amos, 1972:10

Harttella Bell, 1929:149

*Harttina Hall and Clarke, 1893:292 [= Romingerina]

Havlicekia Boucot, 1963:693

Haydenella Reed, 1944:79

Haydenoides Chan, 1977:352; 1979, in Hou et al., 1979:82

Hebertella Hall and Clarke, 1892:198

Hebetoechia Havlíček, 19596:79

**Hectoria Trechmann, 1918 [invalid new name for

Clavigera, Hectoria preoccupied; replaced by Hectorina; Clamgera not preoccupied]

** Hectorina Finlay, 1927 [invalid new name for Hectoria; Clavigera not preoccupied]

Hedema Boucot, 1957:323

(Hedstroemina) Bancroft, 1929:58 [subgenus of

Kjaerina] Heinua Haas, 1890:87

Helaspo Imbrie, 1959:400

Helenathyris Alekseeva, 1969:1157

Helmersenia Pander, 1861:48

Helvelella Owen, 1977:221

Hemichonetes Racheboeuf, 1979 [nomen nudum]; in Havlíček and Racheboeuf, 1979:83

Hemileurus Cooper and Grant, 1976a:2018

Hemiplethorhynchus Peetz, 1898:181

(Henupronites) Pander, 1830:74 [subgenus of Clitambonites]

Hemiptychma Waagen, 1882:363

Hemithiris Orbigny, 1847:268

Hemithyrts.—Bronn, 1848 [misspelling of Hernithiris]

Hemithyropsis Katz, 1974:254

Hemitoechia Nikiforova, 1970:103

Hercosestria Cooper and Grani, 1969:7

Hercosia Cooper and Grani, 1969:8

Hercostrophia Williams, 1950:277

Hercothyris Cooper, 1979:25

Hesperinia Cooper, 1956c:822

Hesperithyris Dubar, 1942:78

Hesperomena Cooper, 1956c:744

Hesperonomia Ulrich and Cooper, 1936b:621

Hesperonomiella Ulrich and Cooper, 19366:622

Hesperorhynchia Warren, 1937:2

Hesperorthis Schuchert and Cooper, 1931:244

Hesperotrophia Ulrich and Cooper, 19366:630

Heleralosia King, 1938:278

Heieraria Cooper and Grant, 1976a:2276

Heterelasrna Girty, [1909]:337

* Heterelasmina Licharew, 1939:120 [=lisuzna]

Heterorthella Harper, Boucot, and Wahnsley, 1969:79

Heterorthina Bancroft, 19286:59

Heterorthis Hall and Clarke, 1892:202

Himalairhynchza Ching and Sun, 1976, in Ching et al., 1976:292

Hindella Davidson, 1882:130

HinraPhoria.—Bronn, 1862 [misspelling of Hynnzphoria]

Hipparionix Vanuxem, 1842:124

Hippartonyx.—Auctorum [improper emendation of Hipparionix by subsequent authors]

Hircinisca Havlíček, 1960:241

Hirnantia Lamont, 1935:313

Hirsutella Cooper and Muir-Wood, 1951:195 [new name for Hirsutina]

†Hirsutina Kirchner, 1933 [replaced by Hirsutella]

Hisingerella Henningsrnoen, 1948, in Waern et al 1948: 388

Hispanirhynchia Thomson, 1927:159

Hislosyrznx Massa, Termier, and Termier, 1974:168

Holcorhynchella Dagys, 1974:110

Holcorhynchia Buckman, 1914 [nomen nudum]; 1917:28

Holcospirifer Bassett, Cocks. and Holland, 1976:620

Holcothyrzs Buckman, 1915 [nomen nudum]; 1917:125

Hollardiella Drot, 1966:877

Holorhynchus Kiaer, 1902:68

Holosia Cooper and Grant, 1976a:1971

Holoiricharina Cooper and Grant, 1975:1173

Holtedahlina Foerste, 1924:123

Holynalrypa Havlíček, 1973:339

Holyneles Havlíček and Racheboeuf, 1979:97

Homevalia.—Campbell, 1959 [error by Campbell, should be Ingelarella]

Homoeorhynchia Buckman, 1914 [nomen nudum]; 1917:36

Hornoeospira Hall and Clarke, 1893:112

Homoeospzrella Amsden, 1968:90

* Homotreta Bell, 1941:230 [= Prolotreta]

Hontorialosia Martínez, 1979:119

Hoplotheca—Bigsby, 1878 [misspelling of Anoplotheca]

Horderleyella Bancroft, 1928a:178

Horrzdonia Chao, 1927:24

Hoskingia Campbell, 1965:52

Howellella Kozlowski, 1946:295 [new name for Crispella]

Howellites Bancroft, 1945:203

Howittia Talent, 1956:34

Howseia Logan, 1963:756

Huenella Walcott, 1908:109

Huenellina Schuchert and Cooper, 1931:247

Hunanella Lee, 1939 [nomen nudum]

Hunanoproductus Hou, 1965:117

* Hunanospirifer Tien, 1938:139 [= Cyrtospirifer]

Hungarispira Dagys, 1972a:102

Hungaritheca Dagys, 19726:97

Hustedia Hall and Clarke, 1893:120

Hustedtiella Dagys, 1972a:100

Hyatella.—Cossmann, 1898 [misspelling of Hyattella]

†Hyattella Hall and Clarke, 1894 [replaced by Hyallidina]

Hyattidina Schuchert, 1913, in Zittel, 1913:415 [new name for Hyattella]

Hyborhynchella Cooper, 1955a:59

Hynniphoria Suess, 1859a:44

(Hyponeatrypa) Struve, 1966:137 [subgenus of Altrypa]

Hypopsia Cooper and Grant, 1974:272

Hypothyridina Buckman, 19066:324 [new name for Hypothyris King, 1846]

†Hypothyris King, 1846 [replaced by Hypothyridina]

** Hypothyris Phillips, 1841 [= Kallirhynchia]

Hypseloterorhynchus Sartenaer, 1971:2

Hypsiptycha Wang, 1949:17

Hypsomynnia Cooper, 1955a:53

Hysterolites Schlotheim, 1820:247

†Hystricina Stainbrook, 1945 [replaced by Spznatzypa]

Hystriculina Muir-Wood and Cooper, 1960:211

Iberirhynchia Drot and Westbroek, 1966:165

Iberithyris Kvakhadze, 1971 [nomen nudum]; 1972:75

* Icodonta Bell, 1941:213 [= Micromitra]

(Idioglyptus) Northrop, 1939:173 [subgenus of Cymostrophia]

*Idiorthis McLearn, 1924:56 [= Dalmanella]

Idiospira Cooper, 1956c:691

Idiostrophia Ulrich and Cooper, 19366:631

Iheringithyris Levy, 1961:84

Ikella Tjazheva, 1972:205

Ilmarinia Ópik 1934:125

Ilrnenza Nalivkin, 1941:186

Ilmenispina Havlíček, I959a:257

Ilmospirtfer Ljaschenko, 1969a:18

Ilyinella Jassjukevitch, 1973:104

Imatrypa Havlíček, 19776:300

Imbrexia Nalivkin, 1937:105

Imbricatia Cooper, 19526:21

* (Imperia) Gregorio, 1930a:31 [subgenus of Lyttonia; = Leptodus]

Implexina Poletaev, 1971, in Aisenverg, 1971:79

Inaequalis Sučič-Protič, 1971:12

Incisius Grant, 1976:103

(Independatrypa) Copper, 1973:493 [subgenus of Desquamatia]

Indigia Barchatova, 1970 [nomen nudurn]; 1973:100

Indorhynchia Ovtsharenko, 1975:124

Indospirifer Grabau, 1931a:359

Infiatia Muir-Wood and Cooper, 1960:227

‡Infurca Percival, 1979b:185

* Ingelarella Campbell, 1959:341 [= Tomiopsis]

Ingria Öpik, 1930:57

*Iniathyris Besnossova, 1963, in Sarytcheva et al., 1963:312 [= Composita]

Innudella Crickmay, 1968:5

Inopinatarcula Elliott, 1952:2

Institella Cooper, 1942:230

Innitifera Muir-Wood and Cooper, 1960:203

Insulina Muir-Wood and Cooper, 1960:165

Inversella Ópik, I933a:21

Inversithyris Dagys, 1968:92

Invertrypa Struve, 1961:334

Iotina Cooper and Grant, 1976a:1944

Iowatrypa Copper, 1973:495

†IPhidea Billings, 1872 [replaced by Iphidella Walcott, 1905]

* Iphidella Walcott, 1905:304 [new name for Iphidea; = Paterina]

† Iphidella Walcott, 1912 [replaced by Dictyonina]

Irboskites Bekker, 1924:48

Irenothyris Pojariskaja, 1966:27

Irgislella Tjazheva, 1972, in Tjazheva and Zhavoronkova, 1972:90

Irhirea Havlíček, 1971c:44

Iridistrophia Havlíček, 1965a:292

*(Irma) Gregorio, 1930a:32 [subgenus of Lyttonia; = Leptodus]

Ira Öpik, 1934:89

Ishimia Nikitin, 1974:59

*Isjuminella Makridin, 1954; 1955 [nomina nuda; = Isjuminelina]

Isjuminelina Makridin, 1960, in Rzonsnitzkaja et al., 1960: 254

Ismenia King, 1850:245

Isocrania jacket, 1902:1063

Isogramma Meek and Worthen, 1870:35

Isophragma Cooper, 1956c:733

Isopoma Torley, 1934:81

†Isorhynchus King, 1850 [replaced by Equirostra]

Isorthis Kozlowski, 1929:29

(Isospinatrypa) Struve, 1966:155 [subgenus of Spinatrypa]

Isoyella Breivel and Breivel, 1970a:52

Israelaria Cooper, 1976:281

Isumithyris Hatai, 1948:498

Ithyris.—Bigsby, 1878 [misspelling of Athyris]

*Iubagraspirifer Gatinaud, 1949:487 [= Cyrlospirifer]

* Iugrabaspirifer Gatinaud, 1949:487 [= Cyrtospirifer]

Ivanothyris Havlíček, 1957b:440

Ivanovia Ivanova, 1949 [nomen nudum?]

Ivanoviella Makridin, 1954 [nomen nudum?]; 1955:83

Ivdelinia Andronov, 1961:45

‡Ivshinella Koneva, 1979:54

Iwaispirifer Tachibana, 1964:39

Jaanussonites Neuman, 1977:26

†Jacobella Patte, 1926 linvalid new name for Austriella, Jacobella preoccupied; replaced by Austriellula]

Jaffaia Thomson, 1927:254

Jaisalmeria Sahni, 1955:187

(Jakutella) Abramov, 1970:119 [subgenus of Krotovia]

Jakutochonetes Afanasjeva, 1977a:31

Jakutoproductus Kaschirzev, 1959:28

Jamesella Walcott, 1905:252

Janiceps Frech, 1901:551

Janiomya Havlíček, 1967a:174

Janius Havlíček, 1957a:245

Japanithyris Thomson, 1927:251

Jatsengina.—Ivanova, 1960 [transliteration of Yalsengina]

Jisuina Grabau, 19316:105

Jivinella Havlíček, 1949a:94

Johnsonathyris Savage, Eberlein, and Churkin, 1978:381

Jolonica Dall, 1920:366

Johna Sapelnikov, 1960a:56

Junnanella.—Rzonsnitzkaja, 1958 [transliteration of Yunnanella]

Junnanellina.—Rzonsnitzkaja, 1958 [transliteration of Yunnanellina]

Juralina Kyansep, 1961:29

Juresania Fredericks, [1928]:792

Juvapella Bittner, 1888b:127

Juvavellina Bittner, 1896:132

Jvanoviella.—Makridin, 1955 [transliteration of kanovielta]

Kabanomella Smirnova, 1973:43

Kachathyris Smirnova, 19756:120

Kadraliproductus Galitzkaja, 1977:36

Kafirni gania Katz, 1962:138

Kallirhynchia Buckman, 1914 [nomen nudum]; 1917:31

Kamoica Hatai, 1936:313

Kaninospirlfer Kulikov and Stepanov, 1975, in Stepanov et al., 1975:63

Kansuella Chao, 1928:68

Kaplex Ficner and Havheek, 1975:362

Karabachia Askerov, 1965; 1967 [nomina nuda]

Karabaghia Askerov, 1964 [nomen nudum]

Karadagella Babanova, 1965:95

Karadagithyris Tchorszhewsky, 1973 [nomen nudum]; 1974:55

Karakulina Andreeva, 1972:55

Karavankina Ramovs, 1966 [nomen nudum]; 1969:253

Kardonikithyris Tchorszhewsky, 1973 [nomen nudum]

Karliciurn Havheek, 1974:169

Karpathothyris Tchorszhewsky, 1973 [nomen nudum]

Karpinskia Tschernyschew, 1885:49

Kasakfistania Besnossova, 1968, in Sarytcheva, 1968:179

Kassinella Borissiak, 1956, in Kiparisova et al., 1956:50

Katastrophomena Cocks, 1968:293

Katunia Kulkov, 1963:54

Kayserella Hall and Clarke, 1892:259

Kayseria Davidson, 1882:21

Kayserlingia.—Beccher, 1891 [misspelling of Keyserlingia]

Kelusia Mamedov, 1978:200

Kendzhilgithyrrs Ovtsharenko, 1977 [nomen nudum]

Keratothyrés Tuluweit, 1965:76

Kertnna Struve, 1961:333

*Kestonithyris Sahni, 1925:363 [= Gibithyris]

Keyserlingia Pander, 1861:46

Keyserlingina Tschernyschew, 1902:475

Khinganospirifer Su, 1976:221

(Khodalevichia) Boucot and Johnson, 1979:116 [subgenus of Kirkidium]

Khodalemtchra Boucot, 1975 [nomen nudum]

Kiaeromena Spjeldnaes, 1957:183

Kiangsiella Grabau and Chao, 1927:103

Kikaithyris Yabe and Hatai, 1941:495

Kilethyris Yasamanov, 1977 [nomen nudurn]

Kindleina Savage, Eberlein, and Churkin, 1978:390

Kinelina Ljaschenko, 1969b:35

Kingena Davidson, 1852a:42

Kingenella Popiel-Barczyk, 1968:72

Kingenina Askerov, 1964; 1965; 1967 [nomina nuda]

Kinghiria Litvinovich, 1966:98; 1969, in Litvinovich et al., 1969:252

Kingia.—Schloenbach, 1866 [misspelling of Kingena]

Kinnella Bergström, 1968:11

Kirkidium Amsden, Boucot, and Johnson, 1967:865

Kirkina Salmon, 1942:598

Kisilia Nalivkin, 1979:146

Kitakamithyris Minato, 1951:374

Kjaerina Bancroft, 1929:43

Kjerulfina Bancroft, 1929:59

Klipsteinella Dagys, 1974:150

**Klitambonites Pander, 1830 [= Clitambonites]

Kochiproduclus Dunbar, 1955:107 [new name for Tscheruyschewiella]

Koeveskallina Dagys, 1965:172

Kolhidaella Moisseiev, 1939:189

Kolymithyris Dagys, 1965:148

Komiella Barchatova, 1970 [nomen nudum]

Komispirifer Ljaschenko, 1973:105

Koninekella Munier-Chalmas, 1880:280

Koninckia.—Suess, 1854 [misspelling of Koranckinal Koninckina Suess, 1853, in Davidson, 1853:92

Koninckodonta Bittner, 1893:137

Konstantia Glazewski and Pajaud, 1970, in Pajaud, 1970: 189

Kortugina.—Davidson, 1871 [misspelling of Kutorgina]

Kosirium Ficner and Havlíček, 1975:362

Kotujella Andreeva, 1962:94

Kozlowskia Fredericks, 1933:29

†Kozlowskiella Boucot, 1957 [replaccd by Kozlowskiellina]

Kozlowskiellina Boucot, 1958:1031 [new name for Kozlowskiella]

(Kozlowskites) Havheek, 1952:406 [subgenus of Eoplectodontal

Kransia Westbroek, 1967:81

†Kraussia Davidson, 1852 [replaced by Kraussma]

Kraussina Davidson, 1859, in Suess, 1859b:210 [new name for Kraussia]

Kraussinina.—Paetel, 1875 [rnisspelling of Kraussna]

(Krejcigrafella) Struve, 1978:97 [subgenus of Schuchertellopsis]

Krotovia Fredericks, [1928]:780

Kueichowella Yang, 1978b:267

Kullervo Ópik, 1932:70

Kulumbella Nikiforova, 1960:61

Kumbella Khodalevich, 1975:137

Kundatella Aksarina, 1978, in Aksarina and Pelman, 1978: 105

Kurakithyris Hatai, 1946:98; 1948:495

Kutchirhynehia Buckman, 1914 [nomen nudum], 1917:54

Kutchithyris Buckman, 1915 [nomen nudum]; 1917:113

Kulorgrna Billings, 1861a:8

Kutorginella Ivanova, 1951:329

Kuvelousia Waterhouse, 1968b:1175

Kvesanirhynchia Kvakhadze, 1976:505

Kwangsia Grabau, 1931a:205

Kwangsiella.—Graban, 1932 [misspelling of Kwangsia]

Kwangsirhynchus Hou and Xian, 1975:38

Kymatoihyris Struve, 1970:533

(Kyrtatrypa) Struve, 1966:135 [subgenus of Atrypa]

Labaia Licharew, 1956, in Kiparisova et al., 1956:66

Laballa Moisseiev, 1962, in Dagys, 1962:51

Labriproductus Cooper and Muir-Wood, 1951:195 [new name for Worthenella]

Lacazella Munier-Chalmas, 1880:279

Lachryrnula Graham, 1970:158

Lacunaerhynchia Almeras, 1966:97

Lacunarites Öpik. 1934:175

Lacunites Gorjansky, 1969:103

Lacunosella WiS’niewska, 1932:30

Ladjia Veevers, 1959:125

Ladogia Nalivkin, 1941:165

Ladogiella Ópik, 1934:93

Ladogifornix Schmidt, 1964:505

Ladogilina Ljaschenko, 1973:58

Ladogilinella Ljaschenko, 1973:61

Ladogioides McLaren, 1961:4

Laevicamera.—Grabau, 1936 [improper emendation of Leoicamera]

(Laevicyphomena) Cocks, 1968:317 [subgenus of Cyphomena]

Laevigaterhynchia Wiśniewska-Żelichowska, 1978:112

Laevirhynchia Dagys, 1974:91

Laevispirifer Ushatinskaia, 1977a:137

Lanathyris Dagys, 1974:198

Laioporella Ivanova, 1975:83

*Lakhmina Oehlert, 1887, in Fischer, 1887:1265 [new name for Davidsonella Waagen, 1885; = Neobolus]

Lamanskya Moberg and Segerberg, 1906:71

*Lamarckispirifer Gatinaud, 1949:489 [= Cyrtospinfer]

Lambdarina Brunton and Champion, 1974:819

Lamellaerhynchia Burri, 1953:274

Lamelhconchidium Kulkov, 1968:38

** Larnellispirifer Nalivkin, 1937 [= Mucrosptrifer]

Lamellokoninckina Jin and Fang, 1977:57

Larnellosia Cooper and Grant, 1975:1270

Laminatia Muir-Wood and Cooper, 1960:190

Lamnaespina Waterhouse, 1976:244

Lamnimargus Waterhouse, 1975:10

Lancangjiangra Jin and Fang, 1977:50

Lanceornyorna Haylleek, 1960:243

Langella Mendes, 1961a:3

Langkawia Hamada, 1969a:261

Laosia Mansuy, 1913:83

Laquees Dall, 1870:123

Larium Gregorio, 1930a:25

Lateralatirostrum Sartenaer, 1979a:539

Laticrura Cooper, 1956c:980

Latiplecus Lee and Gu, 1976:299

Latzproductus Sarytcheva and Legrand-Blain, 1977:75

Latonotoechia Havlíček, 1960:244

Lazulkinia Rzonsnitzkaja, 1952:152

Leangella épik, 1933a:42

Leiochonetes Roberts, 1976:26

Leiolepismatina Yang and Xu, 1966:39

Leioproduchis Stainbrook, 1947:308

Leiorhynchoidea Cloud, 1944, in King et al 1944:57

Leiorhynchoides Dovgal, 1953:140

Leiorhynchus Hall, 1860:75 [replacement by Nudirostra invalid, Leiorhynchus not preoccupied]

Leioria Cooper, 1976:284

Leioseptathyris Wu, 1974, in Wang et al., 1974:42

Lenatoechia Nikiforova, 1970:106

Lenorthis Andreeva, 1955:69

Lenothyris Dagys, 1968:100

Lepidocrania Cooper and Grant, 1974:246

Lepidocycloides Nikiforova, 1961, in Nikiforova and Andreeva, 1961:212

Lepidocyclus Wang, 1949:12

Lepidoleptaena Havlíček, 1963b:224

Lepidorhynchia Burri, 1956:689

Lepidorthis Wang, 1955:331

Lepidospiri fer Cooper and Grant, 1969:15

* Lepismatina Wang, 1955:353 [= Psioidea]

Leptaena Dalman, 1828:94

*Leptaenalosia King, 1845 [nomen nudum; = Strophalosia]

* Leptaenella Fredericks, 1918:89 [= Leptaena]

** Leptaenella Sokolskaja, 1952 [= Leptagonia; junior homonym of Leptaenella Fredericks]

Leptaenisca Beecher, 1890:239

Leptaenordea Hedstrdm, 1917:5

Leptaenomendax Garcia-Alcalde and Martínez-Chacon, 1978:255

Leptaenopoma Marek and Havlíček, 1967:282

Leptaenopyxis Havlíček, 19636:224

* Leptaenulopsis Haupt, 1878 [nomen nudum?; = Leptaena]

Leptagorna McCoy, 1844:117

Leptalosia Dunbar and Condra, 1932:260

Leptathyris Siehl, 1962:212

Leptella Hall and Clarke, 1892:293

Leptellina Ulrich and Cooper, 1936b:626

Leptelloidea Jones, 1928:385

* Lepternbolon Mickwitz, 1896:130 [= Lingulella]

Leptestia Bekker, 1922:363

Leptestiina Havlleek, 1952:412

Lemobolus Hall, 1871b:3

Leptobulus.—Hall, 1871 [misspelling of Leptobolus]

Leptocaryorhynchus Sartenaer, 1970:14

Leptochonetes Havlíček and Racheboeuf, 1979:89

Leptocoelia Hall, 1857:108

Leptocoelina Johnson, 1970b:170

Leptodonta Khalfin, 1955:237 [new name for Oehlertia]

Leptodontella Khalfun, 1948:254

Leptodus Kayser, 1883:161

Leptogonia.—Agassiz, 1846 [misspelling of Leptagonia]

* Leptoptilum Öpik, 1930:130 [= Leptestia]

Leptoskelidion Amsden, 1974:47

Lepospira Boucot, Johnson, and Staton, 1964:814

Leplostrophia Hall and Clarke, 1892:288

(Leptostrophiella) Harper and Boucot, 1978a:74 [subgenus of Leptostrophia]

Leptothyrella Muir-Wood, 1965:H855 [new name for Leptothyris]

Leptothyrellopsis Bitner and Pisera, 1979:82

†LepothyrisMuir-Wood, 1959 [replaced by Leptothyrella]

Lercarella Mascle and Termier, 1970:188

*Lespius Gregorio, 1930a:24 [= Streptorhynchus]

Lahamella Liu, 1979:509

Lethamia Waterhouse, 1973:38

Leurosina Cooper and Grant, 1975:1260

Levenea Schuchert and Cooper, 1931:246

Levbiseptum Xian, 1975, in Hou and Xian, 1975:31

*Levicamera Grabau, 1934 [nomen nudum; = Psilocamara]

Leviconchidiella Rzonsnitzkaja, 1960, in Markowskii, 1960: 301

Levigatella Andronov, 1961:38

Levipusttda Maxwell, 1951:10

Levispira Mizens, 1975:47

Levitusia Muir-Nhrood and Cooper, 1960:295

Lialosi a Muir-Wood and Cooper, 1960:87

Libyaeglossa Havlíček, 1973, in Havbeek and Massa, 1973: 275

Libys Massa, Termier, and Termier, 1974:175

Lichareviella Ustritsky, 1959, in Khu et al., 1959:134

Lichareuúa Einor, 1939:69

Lichareuneila Sokolskaja, 1960:219 [replacement by Magniderbyia invalid, Licharewiella not preoccupied]

Lievinella Boucot, 1975:372

Ligula.—Cuvier, 1798 [misspelling of Lingula]

Ligularius.—Duméril, 1806 [misspelling of Lingula]

Ligulops.—Hall, 1871 [misspelling of Lingulops]

Liljevallia Hedström, 1917:12

Limbella Stehli, 1954:329

Limbimurma Cooper, 1956c:851

Lindstroemelia.—Dunbar and Condra, 1932 [misspelling of Lindstroemella]

Lindstroemella Hall and Clarke, 1890:134

*Lindstromella Hall and Clark, 1889 [nomen nudum; = Lindstroemella]

* Lineirhynchia Buckman, 1914 [nomen nudum] 1917:59 [= Furcirhynchia]

Linguithyris Buckman, 1914 [nomen nudum]; 1917:99

Lingula Bruguière, 1797, pl. 250 [type designated by Lamarck, 1799:89]

Lingulapholis Schuchert, 1913:295

Lingularius.—Schuchert and LeVene, 1929 [misspe]ling of Ligularius]

Lingulasma Ulrich, 1889:384

Lingulelasma.—Miller, 1889 [improper emendation of Lirigulasma]

Lingulella Salter, 1866:333

Lingulepis Hall, 1863:129

* Lingulichnites Szmuc, Osgood, and Meinke, 1976 (ichnogenus; = Lingulichnus]

Lingulichnus Hakes, 1976 [ichnogenus]

Lingulidiscina.—Girty, 1909 [misspelling of Lingulodiscina]

Lingulipora Girty, 1898:387

Lingulobolus Matthew, 1895:261

Lingulodiscina Whitfield, 1890:122

Lingulops Hall, 1871a:2 [nomen nuduni]; 1872, plate 13

Linguopugnoides Havliéek, 1960:242

Linnarssonelia Walcott, 1902:601

Linnarssonia Walcott, 1885:115

Linoporella Schuchert and Cooper, 1931:247

Linoproductus Chao, 1927:128

Linoprolonza Ferguson, 1971:551

Linostrophomena Rong, Xu, and Yang, 1974:203

Liocoelia Schuchert and Cooper, 1931:248

Lioleplaena Xian, 1978a:265

Liorhynchus.—Oehlert, 1887 [improper emendation of Leiorhynchus]

Liosotella Cooper, 1953:36

Liospiriferina Rousselle, 1977:164

Liostrophia Cooper and Kindle, 1936:355

Liothyrella Thomson, 1916a:44

**Liodzyrina Oehlert, 1887 [new name for Liothyris; = Gryphus]

Liothyris Douvillé, 1879 [replaced by Liothyrina]

Liratingua Graham, 1970:153

Liraplecta Ching and Sun, 1979 [nomen nudum]

Liraria Cooper and Grant, 1975:1156

* Liraspirtfer Stainbrook, 1950:381 [= Cyrtospirifer]

Lirellaria Cooper and Grant, 1976a:2031

Liricarnera Cooper, 1956c:592

Liriplica Campbell, 1961:440

Lissajousithyris Almeras, 1971:164

Lissatrypa Twenhofel, 1914:33

Lissatrypoidea Boucot and Amsden, 1958:159

Lissella Campbell, 1961:452

Lissochonetes Dunbar and Condra, 1932:170

Lissocoelina Schuchert and Cooper, 1931:248

*Lissocrania Williams, 1943:71 [= Crania]

* Lissomargtnifera Lane, 1962:902 [= Eomarginifera]

Lissopleura Whitfield, 1896:232

Lissorhynchia Yang and Xu, 1966:14

(Lissosia) Cooper and Grant, 1975:1241 [subgenus of Dyoros]

Lissostrophia Amsden, 1949:202

(Lissotreta) Amsden, 1968:37 [subgenus of Onycholreta]

Litocothia Grant, 1976:166

Liothyris Roberts, 1971:237

Ljaschenkovia Batrukova, 1969:71

Ljudmilispirifer Tcherkesova, 1976:90

Llanoella Boucot, 1975:351

Loboidothyris Buckman, 1914 [nomen nudum] 1917:112

Loboidothyropsis SuCie-Protié, 1971:17

Lobothyrella Tchorszhewsky, 1971 [nomen nudum]

Lobothyrzs Buckman, 1914 [nomen nudum]; 1917:107

Lobothyroides Xu, 1978b:307

Lobothyropsis Tchorszhewsky, 1974 [nomen nudum]

(Lobina) Breivel and Breivel, 1977:97 [subgenus of Theodossia]

* Lochengia Graban, 1931 [nomen nudum; = Cryptospirifer]

Loczyella Frech, 1901:503

Loganella Boucot and Amsden, 1958:164 [= Rhipidomella]

Loilemia Rced, 1936:116

Lomatiphora Roberts, 1971:84

Longdongshuia Hou and Xian, 1975:39

Longispina Cooper, 1942:230

Longithyris Katz and Popov, 1974:30

* Longvillia Bancroft, 1933:3 [= Strophomena]

Loperia Walcott, 1905:287

Lophrothyris Buckman, 1914 [nomen nudum]; 1917:114

Lopingia Chan, 1979, in Hou et al., 1979:64

Lorangerella Crickmay, 1963:11

Lordorthis Ross, 1959:447

Loriolithyris Middlemiss, 1968:176

Losvia Breivel and Breivel, 1976, in Tjazheva et al., 1976: 116; 1977:83

Lowenstamia Stehli, 1961b:460

Loxophragmus Cooper and Grant, 1974:432

Luan quella Garcia-Alcalde and Racheboeuf, 1978:847

Ludfordina Kelly, 1967:599

Luhaia Rōōmusoks, 1956:1091

Lunaria Ching, Sun, and Ye, 1979:155

Lunpolaia Ching and Ye, 1979, in Ye and Yang, 1979:67

Luofuia Xu, 1977:66

Lutetiarcula Elliott, 1954:727

Lycophoria Lahusen, 1886:221

* Lyra Cumberland, 1818, in Sowerby, 1818:84 [= Terebrirostra]

Lysingothyris.—Hall, 1868 [misspelling of Syringothyris]

* Lytha Fredericks, [1924a]:298 [= Spirifer]

* Lyttonia Waagen, 1883:398 [= Leptodus]

Maakina Andreeva, 1961, in Nikiforova and Andreeva, 1961:170

Macandrevia King, 1859:261 [replacement by Waldheimiathyrzs invalid, Macandrevia not preoccupied]

Macandrewia.—Bronn, 1862 [improper emendation of Macandrema]

Machaeraria Cooper, 1955a:55

Mackerroma Cocks, 1968:319

Maclarenella Stehli, 1955a:868

Macrocoelia Cooper, 1956c:891

* Macroplectane Cossmann, 1909 215 [new name for Denckmannia; = Rensselandia]

Macropleura Boucot, 1963:690

Macropotamorhynchus Sartenaer, 1970:24

Madarosia Cooper and Grant, 1976a:2002

Magadanza Ganelin, 1977:153

Magadina Thomson, 1915d:399

Magadinella Thomson, 1915d:400

Magas Sowerby, 1818:40

Magasella Dall, 1870:134

Magella Thomson, 1915d:396

Magellania Bayle, 1880:240 [new name for Waldheirnia]

Megharithyris Farag and Gatinaud, 1960:77

Magnicanalis Rowell, 1962:140

** Magniderbyia Ting, 1965 [invalid new name for Licharewiella, Licharewiella not preoccupied]

* Magnithyris Sahni, 1925:367 [= Carneithyris]

Magniventra Harper and Boucot, 1978a:77

Magnumbonella Carter, 1968:1145

†Maia Fredericks, 1924 [replacement by Mansuyella invalid, Mansuyella preoccupied; replaced by Callispirina]

Majkopella Moisseiev, 1962, in Dagys, 19626:61

Makridinirhynchia Sučič-Protič, 1969:81

Malayanoplia Hamada, 1969a:255

Malleia Thomson, 1927:283

Malurostrophia Campbell and Talent, 1967:309

Malwirhynchia Chiplonker, 1938:306

Mameioihyris Smirnova, 1969, in Smirnova and Pergament, 1969:34

*Mammosum Gregorio, 1930a:25 [= Streptorhynchus]

Manithyris Foster, 1974:55

* Mannia Davidson 1874:156 [= Cryptopora]

Mannia Dewalque, 1868 [nomen nudum]

Manoproductus Boucot, 1975 [nomen nudum]

Marisma Andreeva, 1977:116

†Mansuyella Reed, 1944 [invalid new name for Maia, Mansuyella preoccupied; replaced by Callispirina]

Maorielasma Waterhouse, 1964:175

Maoristrophia Allan, 19476:440

Marcharella Andreeva, 1968, in Markowskii, 1968:75

Marginalosia Waterhousc, 1978:64

Marginalia Muir-Wood and Cooper, 1960:263

Marginella Gemmellaro, 1897 [nomen nudum]

Marginicinaus Sutton, 1938:561

Marginifera Waagen, 1884:717

Marginirugus Sutton, 1938:561

Mariannaella Sapelnikov and Rukavischnikova, 1975a:7

Marinumula Waterhouse, 1964:177

** Mariona Nalivkin, 1975 [= Parallelora]

†(Marionella) Bancroft, 1928 [replaced by Marionites; subgenus of Multicostella]

(Marionites) Cooper and Muir-Wood, 1951:195 [new name for Morionella; subgenus of Multicostella]

Markitoechza Havlíček, 19596:81

Mark/andella Harper, Boucot, and Walmsley, 1969:82

* Martellia Wirth, 1936:300 [= Polytoechia]

*Martellispirifer Gatinaud, 1949:487 [= Cyrtospirifer]

Martinella.—Lee, 1939 [misspelling of Martiniella]

Martina McCoy, 1844:139

Martiniella Grabau and Tien, 1931, in Grabau, 1931c:420

?Martinigzsis Lebedev, 1926 [incertae sedis]

Martiniopsis Waagen, 1883:525

Martinothyris Minato, 1953:70

Matutella Cooper, 1951:5

Mauispirifer Allan, 19476:445

Maxillirhynchia Buckman, 1914 [nomen nudum]; 1917:55

Maya.—Rakusz, 1932 [misspelling of Maia]

Mcewanella Foerste, 1920:197

†Mclearnia Caster, 1939 [replaced by Mclearniies]

*Mclearnites Caster, 1945:319 [new name for Mclearniia. = Shalerta]

(Mclearnitesella) Harper and Boucot, 19786:131 [subgenus of Mclearnites]

Medessia Andreeva, 1960, in Markowskii, 1960:295

Mediospirifer Bublichenko, 1956:102

Mediterrani rhynchia Sučič-Protič, 1969:53

Meekella White and St. John, 1867:120

Meekina Walcott, 1905 [nomen nudurn]

Megachonetes Sokolskaja, 1950:42

Megaderbyia.—Jing, Ye, Xu, and Sun, 1979 [improper emendat ion of Magniderbyia]

*(Megakozlowskiella) Boucot, 1957:322 [subgenus of Kozlowskiella; = Kozlowskiellina]

Megakozlowskiellina Amsden and Ventress, 1963 [name apparently used subgenerically rather than specifically as vas intended; = Kozlowskiellina]

Megalanteris.—Oehlert, 1887 [misspelling of Meganteris]

Megalopterorhynchus Sartenaer, 1965a:5

Megalorhynchus.—Gregorio, 1930 [misspelling of Megarhynchus]

Megamyonia Wang, 1949:32

Meganterella Boucot, 1959c:767

Meganterts Suess, 1855:51

Megapleuronia Cooper, 1952a:117

†Megarhynchus Gemmellaro, 1894 [replaced by Gemmellaroza]

Megarites Rafinesque, 1831 [nomen nudum]

Megasalopina Boucot, Gauri, and Johnson, 1966:166

Megasella.—Paetel, 1875 [misspelling of Magasella]

Megasteges Waterhouse, 1975:6

Megastrophta Caster, 1939:37

(Megastrophiella) Harper and Boucot, 1978c:19 [subgenus of Megastrophia]

Megathtris Orbigny, 1847:269 [new name for Argiope]

Megathyris.—Bronn, 1848 [misspelling of Megathiris]

Megerlea.—Davidson, 1856 [misspelling of Megerba]

Megerleia.—Bronn, 1862 [misspelling of Megerlia]

Megerlia King, 1850:145 [replacement by Muehlfeldtia invalid, Megerlia nos preoccupied]

Megerlina Deslongchamps, 1884:243

Megorima Rafinesque, 1819 [nomen nudum]

Megorisma.—Paetel, 1875 [misspelling of

Megorima] Megousta Muir-Wood and Cooper, 1960:309

Megumairypa Harper, 1973:72

Metforlia Williams, 1951:106

Mendacella Cooper, 1930:381

Mendathyris Cloud, 1942:125

Mennespirifer Ljaschenko, 1973:101

Mentzelia Quenstedt, 1871:522

Memzelioides Dagys, 1974:130

Memzeliopsis Trechmann, 1918:229

Meoma Steinich, 1963:732

Merciella Lamont and Gilbert, 1945:655

Merista Suess, 1851:150

Meristella Hall, 1860:75

Meristina Hall, 1867a:299

Meristorygma Carter, 1974:689

Mensiospira, Grabau, 1910, in Grabau and Sherzer, 1910: 159

Merospirtfer Reed, 1949:467

* Mesodalmanella Havheek, 1950:26 [= Howellites]

(Mesodouviella) Harper and Boucot, 19786:124 [subgenus of Mesodouvilltna]

(Mesodouvillina) Williams, 1950:281 [subgenus of Douviltina]

Mesoleptostrophia Harper and Boucot, 1978a:68

(Mesolissostrophia) kVilliams, 1950:280 [subgenus of Lissostrophia]

Mesolobus Dunbar and Condra, 1932:160

Mesonorma Ulrich and Cooper, 19366:627

(Mesopholidostrophia) Williams, 1950:280 [subgenus of Pholidostrophia]

Mesoplica Reed, 1943:97

Mesospirifer Wedekind, 1935 [nomen nudum]

Mesotreta Kutorga, 1848:270

Metabolipa Godefroid, 1974:5

Melacarnarella Reed, 1917:934

Melaplasia Hall and Clarke, 1893:56

Metorthis Wang, 1955:333

Metriolepis Cooper and Grant, 1976b:2717

Mezounia Havlíček, 1967a:31

Miaohuangrhynchus Yang, 1977:374

Micella Ovtsharenko, 1976:24

Micia’us Chatterton, 1973:134

** Mickwitzella Walcott, 1908 [= Thysanotos]

Mickwitzia Schmidt, 1888:5

Micraphelia Cooper and Grant, 1969:4

Microcarchnalta Boucot and Ehlers, 1963:51

Micromitra Meek, 1873:479

Microrhynchia Muir-Wood, 1952:124

Microsphaeridiorhynchus Sartenaer, 1970:27

*Microthyridina Schuchert and LeVene, 1929:120 Inew name for Microthyris; = Ornithella]

†Microthyris Deslongchamps, 1884 [replaced by Microthyririma]

Microtrypa Wilson, 1945:144

*Mikrothyris Quenstedt, 1868 [nomen nudum?; = Atrypa]

Millythyris Almeras, 1971:245

Mimarie Cooper and Grant, 1976b:2907

Mimatrypa Struve, 1964a:436

Mimella Cooper, 1930:376

†Mimulus Barrande, 1879 [replaced by Brackymimulus]

*Minatothyris Vandercammen, 1957:178 [= Warrenella]

(Miniplanus) Waterhouse and Piyasin, 1970:101 [subgenus of Diplanus]

Miniprokopia Havlíček, 197lb:229

Minororthis Ivanov, 1950, in Ivanov and Miagkova, 1950: 23

(Minutilla) Crickmay, 1967:10 Isubgenus of Acutatheca]

Minutostropheodonta Harper and Boucot, 1978c:30

Miogryphus Hertlein and Gratis, 1944:95

*Miopentamerus Woods, 1937 [nomen nudum?; invalid name; = Pentamerus]

Mirantesia Mohanti, 1972:176

Mirifusella Carter, 1971:250

Mirisquamea Sučič-Protič, 1971:38

*Mirtellaspirifer Gatinaud, 1949:488 [= Cyrtospirzfer]

Misolia Seidlitz, 1913:179

Miyakothyris Hatai, 1938:100

Mjoesina Spjeldnaes, 1957:137

*Mobergia Redlich, 1899:5 [= Botsfordia]

Modestella Owen, 1961, in Casey, 1961:573

Moeschia Boullier, 1976:333

Mogoktella Andreeva, 1968, in Markowskii, 1968:82

Moisseezna Makridin, 1964:243

Moisseievia Dagys, 1963:46

Molongella Savage, 1974:13

Molongia Mitchell, 1921:547

Monadotoechia Havlíček, 1960:243

Monelasmina Cooper, 1955a:54

Mongole/la Alekseeva, 1976:347

Mongoliella Ischnazarov, 1972:69

* Mongolina Grabau, 1931b: 102 [= Rosiranteris]

Mongoliopsis Grunt, 1977c:79

Mongolirhynchia Hou and Zhao, 1976:191

Mongolosia Manankov and Pavlova, 1976:354

Mongolospira Alekseeva, 1977:63

Monobolina Salter, 1866:334

Monoconvexa Pelman, 1977:49

Monomerella Billings, 1871:221

Monorthis Bates, 1968:144

Monsardithyris Almeras, 1971:198

Montane/la Ovtsharenko, 1976:21

Monuclarella Winiewska, 1932:55

† Monticola Nalivkin, 1930 [replaced by Plectorhynchella]

Monticulifera Muir-Wood and Cooper, 1960:327

Moorefieldella Girty, 1911:63

Muorellma Elliott, 1953:694

Moquellina Ching, Sun, and Ye, 1979:141

Moraviaturia Sahni, 1960:19

Moravilla Havlíček, 1953:4

Moravostrophza Havlíček, 1962:471

Morganella McKellar, 1970:17

Morinorhynchus Havlíček, 1965a:291

* Morrisia Davidson, 1852c:371 [= Platidia]

* Morrisina Grabau, 19316:98 [= Hemiptychina]

Morrisithyris Almeras, 1971:131

Moscvella Makridin, 1954 [nomen nudum; = Mosquella]

Mosquella Makridin, 1955:86

Moumina Fredericks, [1924a.]:323

Moutonithyris Middlemiss, 1976:63

Mucrospirifer Grabau, 1931c:408

** Muehlfeldtia Bayle, 1880 [invalid new name for Megerlia, Megerlia not preoccupied]

Muirwoodella Tchorszhewsky, 1973 [nomen nudurn]; 1974:52

Muirwoodellopsis Tchorszhewsky, 1973; 1974 [nomina nuda]

Muirwoodia Licharew, 1947:187

(Multicosta) Khodalevich and Breivel, 1977, in Breivel and Breivel, 1977:71 [subgenus of Leviconchidiella]

Mullicostella Schuchert and Cooper, 1931:244

Muitispinuia Rowell, 1962:147

†Muitispinula Waterhouse, 1966 [replaced by Echinalosia]

(Multispirifer) Kaplun, 1961:88 [subgenus of Eospirifer]

†Munella Fredericks, 1924 [replaced by Purdonellal

Munhella Neuman, 1971:117

†Munia Fredericks, 1918 [replaced by Fredericksia]

Munieratrypa Mizens and Rzonsnitzkaja, 1979:60

Murtferella Johnson and Talent, 1967b:44

Murinella Cooper, 1956c:844

Murravia Thomson, 1916a:45

Masculina Schuchert and LeVene, 1929:120 [new name for Musculus]

†Musculus Quenstedt, 1869 [replaced by Musculina]

Mutationella Kozlowski, 1929:31

MYolreta Gorjansky, 1969:67

Myriospirifer Havlíček, 1978:105

Mystrophora Kayser, 1871:612

Nabarrecha Havlíček and Racheboeuf, 1979:96

Nabiacna Xu, 1979a:370

Nadiastrophia Talent, 1963:62

Najadospirifer Havlíček, 1957a:246

Najchnothyris Makridin and Katz, 1964, in Makridin, 1964: 35

(Nakazatothyris) Minato and Kato, 1977:623 [subgenus of Undispirder]

Nalivkinaria Rzonsnitzkaja, 1968, in Markowskii, 1968:117

Nalivkinella Popov, 1974, in Katz and Popov, 1974:23

Nalivkinia Bublichenko, 1928:982

Nanamborotes Liu, 1976:145

Nannirhynchia Buckman, 1914 [nomen nudum]; 1917:67

Nanorthis Ulrich and Cooper, 1936b:621

Nanospira Amsden, 1949:203

Nanothyris Cloud, 1942:45

Nantanella Grabau, 1936:72

Nanukidium Jones, 1979:1261 [new name for Rossella]

Naradanithyris Tokuyama, 1958b:2

Nayunnella Sartenaer, 1961b:2 [new name for Yunnanella Grabau 19311

** Neatretia Fischer and Oehlert, 1891 [= Cryptopora]

(Neatrypa) Struve, 1964b:526 [subgenus of Desquamatia]

Nebenothyris Minato, 1953:72

Nekhoroshezna Bublichenko, 1956:101

Nematocrania Grant, 1976:31

Nemesa Schmidt, 1941:41

Neobolus Waagen, 1885:758

Neobouchardia Thomson, 1927:270

Neochonetes Muir-Wood, 1962:87

Neocoelia McKellar, 1966:2

Neocyrtina Yang and Xu, 1966:62

Neadelthyris Hou, 1963:413

Neofascicosta Xu. 19786:278

Neogypidula Licharew, 1934a:213

* Neohenuthyrzs Yabe and Hatai, 1934:587 [= Baszliola]

(Neokarpinskia) Mizens, 1977a:95 [subgenus of Karpinskia]

(Neokjaerina) Levy and Nullo, 1974a:191 [subgenus of Kjaerina]

Neoliothyrina Salmi, 1925:375

Neornetabolipa Godefroid, 1974:23

* Neomunella Ozaki, 1931:25 [= Chorzslites]

Neophrzcadothyris Licharew, 1934b:175

Neophrzcodothyris.—Ivanova, 1960 [misspelling of Neophricadothyris]

Neoplicatifera Ching, Liao, and Fang, 1974:309

Neoproboscidella Ivanova, 1949 [nomen nudum]

Neoproduaella Lee, 1939 [nomen nudum]

Neoretzza Dagys, 1963:130

Neorhynchia Thomson, 1915b:388

Neospirifer Fredericks, [1924a]:311

Neospirifer Nikitin, 1900 [nomen nudum = Neospirifer Fredericks, 1924]

(Neospirigerina) Rzonsnitzkaja, 1975:72 [subgenus of Spirzgerina]

Neostrophia Ulrich and Cooper, 1936b:631

Neothecidella Pajaud, 1970:108

Neothyris Douvillé, 1879:274

Neotreta Sobolev. 1976:132

** Neotrigonella Cossman, 1910 [new name for Trigonella; objective synonym of Tetractmella; subjective synonym of Cheirothyrzs]

Neowellerella Dagys, 1974:116

Nepasztoechia Havlíček, 1979:91

* Nereidella Wang, 1955:339 [= Paurorthis]

Nervostrophia Caster, 1939:79

Neumanella Harper and Boucot, 1978c:29

Neumayrithyris Tokuyama, 1958a:120

**Newberria Hall, 1891 [= Rensselandia]

Newberria.—Schuchert, 1897 [improper emendation of Nettiberria]

Nicolella Reed, 1917:860

Nigeroplica Nalivkin, 1975, in Stepanov, 1975:160

Nikiforovaena Boucot, 1963:67

Ningbingella Roberts, 1971:152

Ninglangothyris Jin and Fang, 1977:60

Nipponithyris Yabe and Hatai, 1934:588

Nisusia Walcott, 1905:248

Niviconia Cooper and Grant, 1974:374

Nix Easton, 1962:45

* Nocturnellia Havlíček, 1950:53 [= Dalmanella]

Nodella Tachibana, 1964:38

(Noetlingia) Hall and Clarke, 1893:229 [subgenus of Porambonites]

Nondia Boucot and Chiang, 1974:66

Nordathyris Grunt, 19776:73

Nordella Ljaschenko, 1973:135

Nordispirifer Ljaschenko, 1973:104

Nordotoechia Tcherkesova, 1965:80

Norella Bittner, 1890:315

** Norgium Breivel and Breivel, 1970 [= Proconchidium]

Notanoplia Gill, 1950:249

Nothopindax Cooper and Grant, 1974:318

Nothorthis Ulrich and Cooper, 1938:106

Notiochoneles Muir-Wood, 1962:48

* Notoconchidium Gill, 1950:243; 1951:187 [= Karpinskia]

Notoleptaena Gill, 1950 [nomen nudum] 1951:192

Notoparmella Johnson, 1973a:1026

Notorygmia Cooper, 19726:13

Notosaria Cooper, 1959:48

Notospirifer Harrington, 1955:115

Notostrophia Waterhouse, 1973:35

(Notothyrina) Licharew, 1936a:271 [subgenus of Rostranteris]

Notothyris Waagen, 1882:378

Notozyga Cooper, 1977:105

Novellinetes Havlíček and Racheboeuf, 1979:87

Novozemelia Tcherkesova, 1973:28

Nucleata Quenstedt, 1868:25

Nucleatina Katz, 1962:135

Nucleatula Bittner, 18886:126

Nucleospira Hall, 1859a:23

Nudauris Stehli, 1954:317

**Nudirostra Cooper and Muir-Wood, 1951 [invalid new name for Leiorhynchus, Leiorhynchus not preoccupied]

Nudirostralina Yang and Xu, 1966:21

Nudispirzferina Yang and Xu, 1966:47

Nugnecella Levy and Nullo, 19741D:28

Nuguschella Tjazheva, 1960, in Markowskii, 1960:408

Nurataella Larin, 1973:135

Nurochonetes Ushatinskaia, 19776:42

Nyalamurhynchia Ching, Rong, and Sun, 1976, in Ching et al., 1976:300

Nyege Veevers, 1959:113

Nymphorhynchia Rzonsnitzkaja, 1956, in Kiparisova et al., 1956:53

Oanduporella Hints, 1975:19

Obesaria Havlíček, 19576:438

Oblongarcula Elliott, 1959:147

Obnixia Hoover, 1979:11

Obotella Billings, 1861a:7

*Obolellina Billings, 1871:222 [= Rhynobolus]

Obolopszs Saito, 1936:350

Obolus Eichwald, 1829:274

Obornes Rafinesque, 1831 [nomen nudum]

Obovoikyris Buckman, 1927:32

Obturarnentella Amsden, 1958:99

Obulus.—Quenstedt, 1868 [misspelling of Obolus]

Ochotathyris Dagys, 1974:159

Ochotorhynchia Dagys, 1968:47

Ocneroalus Bell, 1941:251

Ocruranus Liu, 1979:506

Odarovithyris Tchorszhewsky, 1971:63

Odontospirifer Dunbar, 1955:155

Oehleriella Hall and Clarke, 1890:132

†Oehlertia Khalfin, 1948 [replaced by Leptodonta]

Oepikina Salmon, 1942:589

*Oepikinella Wilson, 1944:199 [= Strophomena]

Ogbinia Sarytcheva, 1965, in Ruzhentsev and Sarytcheva, 1965:229

Ogilnella Lenz, 1968:180

Okathyris Smirnova, 1975c:71

*Oldhamella Noctling, 1905 [invalid new name for Oldhamina]

Oldhamia.—Zittel, 1910 [misspelling of Oldhamina]

Oldhamina Waagen, 1883:406 [replacement by Oldhamella and Waagenopora invalid]

Oldhaminella Wanner and Sicverts, 1935:232

Oleneothyris Cooper, 1942:233

Oleorthis Havlíček, 1968:124

Olgerdia Grigorjewa, 1977:50

Oligomys Schuchert and Cooper, 1931:243

Oligoptycherhynchus Sartenaer, 1970:20

Ofigorhachis Imbrie, 1959:403

Oligorhynchia Cooper, 1935:49

Oligorthis Ulrich and Cooper, 1936b:624

Oligothyrina Cooper, 1956a:526

* Oliveirella Oliveira, 1934:167 [new name for Brasilia; = Paranaia]

Ombonia Caneva, 1906:54

Omnutakhella Lopushinskaja, 1976:66

Omolonella Moisseiev, 1936:39

Omolonia Alekseeva, 1967, in Alekseeva and Nuzhdina, 1967:138

**Omolonospirifer Simakov, 1970 [= Tenisia]

Omolonothyris Dagys, 1968:132

Oncosarina Cooper an Grant, 1969:9

Onniella Bancroft, 1928b:55

Onnizetzna Havljek, 1974:168

Onoporclumaria Waterhouse, 1971, in Bamber and Waterhouse, 1971:205

Onychoplecia Cooper, 1956c:529

Ortychotreta Ulrich and Cooper, 1936a:339

(Opikella) Amsden, 1968:48 [subgenus of Leangella]

Opisthotreta Palmer, 1954:771

Opsiconidion Ludvigsen, 1974:143

†Orbicella Orbigny, 1847 [replaced by Clistotrema]

Orbicoelia Waterhouse and Piyasin, 1970:144

*Orbicula Cuvier, 1798:435 [= Crania]

*Orbicularius Duméril, 1806 [= Crania]

Orbiculoidea Orbigny, 1847:269

Orbiculopora Batrukova, 1969:75

Orbiculothyris Wolfart, 1968, in Wolfart et al., 1968:528

Orbinaria Muir-Wood and Cooper, 1960:150

Orbirhynchia Pettitt, 1954:29

Orbithele Sdzuy, 1955:9

Orenburgella Pavlova, 1969:76

Orientospira Dagys, 1965:101

Orientospirifer Hou and Xian, 1975:49

Orientothyris Katz and Popov, 1974:28

Origostrophia Mi tchell, 1977:115

Oriskanza Hall and Clarke, 1893:270

Orlovirhynchia Dagys, 1968:75

Ornalothyrella Dagys, 1974:210

Ornatothyris Sahni, 1929:45

Ornithella Deslongchamps, 1884:273

* Ornithothyris Sahni, 1925:374 [= Carneithyris]

Ornothyrella Havlíček, 1971c:80

Orthambonites Pander, 1830:81

Orthidiella Ulrich and Cooper, 1936b:621

Orthidium Hall and Clarke, 1892:244

Orthis Dalman, 1828:112

** Orthisina Orbigny, 1847 [= Clitambonites]

Orthisocrania Rowell, 1963:39

Orthoidea Friren, 1876:1

* Orthonomaea Hall, 1859 [nomen nudurn]; 1893, in Hall and Clarke, 1893:159 [= Catazyga]

Orthopleura Imbrie, 1959:391

Orthorhynchula Hall and Clarke, 1893:181

Orthorhynchuloides Williams, 1962:241

Orthospirifer Pitrat, 1975:387

Orthostrophella Amsden, 1968:23

Orthostrophia Hall, 1883, p1.36

Orthotetella King, [19311:51

Orthoteles Fischer de Waldheim, 1829:375

Orthothetina Schellwien, 1900:10

Orthothrix Geinitz, 1847:86

Orthothyris Cooper, 1955b:64

Orthotichia Hall and Clarke, 1892:213

Orthotichina.—Tschernyschew, 1914 [misspelling of Orthotichia]

Orthotoma Quenstedt, 1869:315

Orthotomoides Tchorszhewsky 1971 [nomen nudurn]

Orthotropia Hall and Clarke, 1893, pl.84

Ortotichia.—Tschernyschew, 1914 [misspelling of Orthotichia]

Orulgania Solomina and Tschernjak, 1961:61

Orusia Walcott, 1905:273

Oslogonites Öpik, 1939:133

*Oslomena Spjeldnaes, 1957:161 [= Glyptomena]

Osmarella Pearson, 1977:58

(Otariella) Waterhouse, 1978:30 [subgenus of Marginifera]

Otosparifer Hou and Xian, 1975:65

Otusia Walcott, 1905:246

(Ovalella) Walmsley and Boucot, 1975:75 [subgenus of Isorthis]

** Ovalia Nalivkin, 1937 [= Brachythyris]

Ovatia Muir-Wood and Cooper, 1960:312

Overtonia Thomas, 1914:260

Overtoniina Grunt, 1973, in Grunt and Dmitriev, 1973:94

Oxlosia Ulrich and Cooper, 1936b:619 Inew name for Eunoa]

Oxoplecia Wilson, 1913:81

Oxycdpella Dagys, 1962b:68

Oxypleworhynchm Plodowski, 1973:85

Oxyrhynchus Quenstedt, 1868 [nomen nuduml

Pochiloma Rafinesque, 1831 [nomen nudum]

†Pachyglossa Cooper, 1956 [replaced by Pachyglossella]

Pachyglossella Cooper, 1960:601 [new name for Pachyglossa]

Pachymagas Ihering, 1903:332

**Pachyrhynchus King, 1850 [= Bouchardia]

Pachythyris Boullier, 1976:154

Pacificocoelia Boucot, 1975:361

Pacifithyris Hatai, 1938:216

Paeckelmanella Licharew, 1934a:212

**Paeckelmanella Licharew, 1934 [invalid new name for Tornquistia, Tornquistia not preoccupied]

Pahlenella Schuchert and Cooper, 1931:245

† Pakistania Stehli, 1961 [replaced by Whitspakia]

Palaebolus.—Gorjansky, 1960 [misspelling of Palaeobolus]

Palaeobolus Matthew, 1899:202

Palaeochoristiles Sokolskaja, 1941:26

** Palaeocrania Eichwald, 1854 [= Pseudocrania]

Palaeoglossa Cockerell, 1911:96 [new neme for Glossina]

Palaeoglossina.—Dunbar and Condra, 1932 [misspelling of Palaeoglossa]

‡Palaeoschmidtites Koneva, 1979:35

Palaeospirifer Martynova and Sverbilova, 1968:26

Palaeostrophm Ulrich and Cooper, 19366:627

Palaeostrophomena Holtedahl, 1916:43

*Palaferella Spriestersbach, 1942:187 [= Gruenewaldtia]

Paldiskia Gorjansky, 1969:28

* Palinorthis Ulrich and Cooper, 19366:625 [= Ingria]

†Pallasiella Renz, 1932 [replaced by Phymatothyris]

Pamirorhynchia Ovtsharenko, 1977 [nomen nudum]

Pamirotheca Dagys, 1974:79

Pamirothyris Dagys, 1974:195

† Pamirothyris Ovtsharenko, 1975 [replaced by Pamirothyropsis]

†Pamirothyris Ovtsharenko, 1979:126 [new name for Pamirothyris Ovtsharenko, 1975]

Pammegetherhynchus Sartenaer, 1977:68

Pampoectlorhynchus Sartenaer, 1968c:4

Panderina Schuchert and Cooper, 1931:243

Pantellaria Dall, 1919:251

Papiliolinus Waterhouse and Gupta, 1977:160

Papillostrophia Havlíček, 1967a:132

Paraacanthothyris Kamyschan, 1973, in Kamyschan and Babanova, 1973:67

Parabifolium Pajaud, 1966a:70

(Parabornhardtina) Sun and Hou, 1964, in Hou and Xian, 1964:416 [subgenus of Bornhardtina]

Paracapillithyris Katz and Popov, 1974:26

Parachonetes Johnson, 1966c:365

Parachorigites Barchatova, 1968, in Markowskii, 1968:164; 1970:145

Paraconchidium Rong and Yang, 1974:198

Paracostanoplia Xu, 1977:65

Paracraniops Williams, 1963:347

Paracrothyris Wu, 1974, in Wang et al., 1974:42

Paracrurithyris Liao, 1979 [nomen nudum]

* Paracyrtiopsis Gatinaud, 1949:490 [= Cyrtiopsis]

Paradoxothyris Xu, 1978b:302

Paradygella Liao and Sun, 1974:352

Paraemanuella Yang, 1977:415

* Parakeyserlingina Fredericks, 1916:64 [= Keyserlingina]

Paralazulkinia Jiang, 1978:314

Paraldingia Richardson, 1973:122

Paralepismalina Yang and Xu, 1966:38

(Paraleptostrophia) Harper and Boucot, 1978a:70 [subgentis of Mesoleptostrophia]

Parallelelasma Cooper, 1956c:612

Parallelera Carter, 1974:680

Paralyttonia Wanner and Sieverts, 1935:207

Paramarginatia Yang, 1978a:111

Paramargintftra Fredericks, 1916:64

*Paramartinia Reed, 1949:471 [= Martinia]

Paramentzelia Xu, 19786:293

Paramerista Su, 1976:207

Paramesolobus Afanasjeva, 1975:101

Paramonticulifera Tong, 1978:234

Paranaia Clarke, 1913a, pl. 21

Paranorella Cloud, 1944, in King et al., 1944:59

Paranorellina Dagys, 1974:100

Parapholidostrophia Johnson, 1971:309

Paraphorhynchus Weller, 1905:261

Paraphcanoplia Xu, 1977:67

Parapugnax Schmidt, 1964:505

Parapulchratia Chan, 1979, in Hou et al., 1979:87

Parareitcularia Lee and Gu, 1976:298

(Pararhipidtum) Boucot, 1975 [nomen nudum; = (Pararhipidium) Boucot and Johnson, 1979]

(Pararhipidium) Boucot and Johnson, 1979:101 [subgenus of Rhipidium]

(Paraschizophoria) Lazarev, 1976:110 [subgenus of Schizophoria]

Paraspirifer Wedekind, 1926:198

Paraspiriferina Reed, 1944:252

(Parastringocephalus) Struve, 1965b:467 [subgenus of Stringocephalus]

†Parastrophia Hall and Clarke, 1894 [replaced by Parastrophina]

Parastrophina Schuchert and LeVene, 1929:121 [new name for Parastrophia]

Parastrophinella Schuchert and Cooper, 1931:248

Parastrophonella Bublichenko, 1956:93

Paratetralomia Yang, 1977:394

Parathecidea Backhaus, 1959:55

Parathyridina Schuchert and LeVene, 1929:121 [new name for Parathyris]

†Parathyris Douvillé, 1916 [replaced by Parathyridina]

Parathyrisina Wang, 1974, in Wang et al., 1974:41

Paratreta Biernat, 1973:68

Parazyga Hall and Clarke, 1893:127

**Pareatonia McLearn, 1918 [= Eatonia]

Parenteletes King, [19311:48

Parmorthina Havlíček, 1975:232

*Parmorthis Schuchert and Cooper, 1931:246 [= Resserella]

Paromalomena Rong, 1979 [nomen nudum]

Paromoeopygma Sartenaer, 1968b:3

Paruncinella Waterhouse and Gupta, 1978b:132

Parvirhynchia Buckman, 1914 [nomen nudum]; 1917:56

‡Parvulaltarostrum Sartenaer, 1979b:2

Paryphella Liao, 1979 [nomen nudum]

Paryphorhynchopora Simorin, 1956:245

Paryphorhynchus.—Weller, 1914[misspelling of Paraphorhynchus]

Patagorhynchia Allan, 1938:199

Paterina Beecher, 1891:345

Paterorthis Havlíček, 1971c:45

Paterula Barrande, 1879:110

Paucicostella Cooper, 1956c:711

Paucicrura Cooper, 1956c:956 [new name for Resserella Schuchert and Cooper, 1932, not Bancroft, 1928]

Paucispinifera Muir-Wood and Cooper, 1960:319

Paucistrophia Wang and Zhu, 1979:23

Paulonia Nalivkin, 1925:282

Paurogastroderhynchus Sartenaer, 1970:25

Paurorhyncha Cooper, 1942:231

*Paurorthina Rübel, 1961:187 [= Paurorthis]

Paurorthis Schuchert and Cooper, 1931:243

Payuella Grabau, 1934:150

Pectorhyncha McLearn, 1918:137

Peculneithyris Smirnova, 1972, in Smirnova and Terekhova, 1972:76

Peetzatrypa Rzonsnitzkaja, 1975:95

Pegmarhynchia Cooper, 1955a:58

Pegmathyris Hatai, 1938:99

* Pegmatreta Bell, 1941:231 [= Linnarssonia]

Pelagodiscus Dall, 1908:440

Pelaicostella Havlíček, 19716:230

Pelonomia Cooper, 1956c:699

Peltichia Ching and Sun, 1979 [nomen nudum]

(Pembrostrophia) Bassett, 1971:325 [subgenus of Amiphistrophia]

Peniculauris Muir-Wood and Cooper, 1960:279

Pennospiriferina Dagys, 1965:112

Pentaainella Bittner, 1890:301

Pentagonia Cozzens, 1846:158

Pentamerella Hall, 18676:163

Pentamerifera Khodalevich, 1939:22

Pentameroides Schuchert and Cooper, 1931:248

Pentamerus Sowerby, 1812:73

Pentlandella Boucot, 1964b:104

Penticmdina Bancroft, 1949b:13

Penzhinothyris Smirnova, 1969, in Smirnova and Pergament, 1969:36

Perakia Hamada, 19696:7

Perditocardinia Schuchert and Cooper, 1931:246

Peregrine/la Oehlert, 1887, in Fischer, 1887:1305

Peregrinelloidea Dagys, 1968:43

Perennithyris Tchorszhewsky, 1973; 1974 [nomina nuda]

** Pereudesia Dall, 1920 [= Coptothyris]

Periallus Hoover, 1979:17

Perichonetes Xu, 1979a:372

Pendalejina Havlíček, 1973:337

Peridiolithus Huepsch, 1768 [nonbinomial]

Peri geyerella Wang, 1955:346

Perimecocoelia Cooper, 1956c:593

Perissothyris Carter, 19676:588

Pentritoechia Xu, Rong, and Liu, 1974:151

Permianella He and Zhu, 1979:132

Pennicola Koczyrkevicz, 19766:75

Permochonetes Afanasjcva, 19776:148

Permophricodothyris Pavlova, 1965:134

*Permorthotetes Thomas, 1958:82 [= Ortholetes]

* Permospinfer Kulikov, 1950:5 [= Licharewia]

Permundaria Nakamura, Kato, and Choi, 1970:295

Perrierithyris Almeras, 1971:423

(Peshiatrypa) Xian, 1978a:298 [subgenus of Desquamatia]

Pesterevatrypa Rzonsnitzkaja, 1975:93

Petasmaia Cooper and Grant, 1969:10

Petasmatherus Cooper and Grant, 1969:12

Paria Mendes, 1961b:22

Petrocrania Raymond, 1911:229 [new name for Craniella]

Petroria Wilson, 1926:28

Pexidella Bittner, 1890:300

Phapsirhynchia Pajaud, 1976:102

Pharcidodiscus Roberts, 1976:46

*Pharetra Bolten, 1798:159 [= Lingula]

Philedra.—Bekker, 1921 [misspelling of Philhedra]

Philhedra Koken, 1889:467

Philhedrella Kozlowski, 1929:28

Phlogoiderhynchus Sartenaer, 1970:18

Phoenicitoechia Havlíček, 1960:242

** Pholidops Hall, 1859 [= Craniops]

Pholidostrophia Hall and Clark, 1892:287

Phragmophora Cooper, 1955a:51

Phragrnorthis Cooper, 1956c:509

Phragmostrophia Harper et al., 1967:428

Phragmothyris Cooper, 19556:66

Phrenophoria Cooper and Grant, 1969:12

Phricodochyris George, 1932:525

Phymatothyris Cooper and Muir-Wood, 1951:195 [new name for Palasiella]

Physernella Godefroid, 1974:50

Physetorhyncha Sartenaer and Rozman, 1968:137

Physotreta Rowell, 1966:19

Piarorhynchella Dagys, 1974:110

Piarorhynchia Buckman, 1914 [nomen nudum]; 1917:34

* Piarothyris Sahni, 1925:370 [= Carneithyris]

Pictothyris Thomson, 1927:260

Pinaxiothyris Dagys, 1968:86

Pinghuangella Jiang, 1978:315

(Polguaella) Boucot, 1975 [nomen nudum; = (Pinguaella) Boucot and Johnson, 1979]

(Pinguaella) Boucot and Johnson, 1979:114 [subgenus of Kirkidium]

Pinguispirifer Havlíček, 1957a:246

Pioglyptus.—St. Joseph, 1941 [misspelling of Idioglyptus]

Pionodema Foerste, 1912:139 [new name for Bathycoelia]

Pionomena Cooper, 1956c:901

(Pionorthis) Schuchert and Cooper, 1931:244 [subgenus of Plaesiomys]

† Pirgula Gregorio, 1930 [replaced by Pirgulia]

Pirgulia Cooper and Muir-Wood, 1951:195 [new name for Pirgula]

Pirothyris Thomson, 1927:280

Pirotothyrzs Sučič-Protič, 1971:31

Pisirhynchia Buckman, 1914 [nomen nudum]; 1917:28

* Pizarroa Huek, 1912, in Steinmann and Hoek, 1912:246 [= Bistramia]

Pizzaroa.—Eastman, 1913 [misspelling of Pizarroa]

Plachiloma Ferussac, 1835 [misspelling of Pachiloma]

Placothyris Westphal, 1970:38

Placotriplesia Amsden, 1968:40

Plaesiomys Hall and Clarke, 1892:196

Plagiorhyncha McLearn, 1918:138

Planalvus Carter, 1971:248

†*(Planatrypa) Copper, 1967b:231 [subgenus of Atrypa; junior homonym and junior synonym of (Planatrypa) Struve; each author based his generic name on the same group species]

(Planatrypa) Struve, 1966:143 [subgenus of Atrypa]

Planicardinia Savage, 1968a:628

*Planidorsa Schuchert and Cooper, 1931:244 [= Cyrtonotella]

Planirhynchia Sučić-Protić, 1969:19

Planispina Stehli, 1954:331

Planodouvillina Harper and Boucot, 1978b:145

Planoharknessella Havlíček, 1950:42

Planoproduclus Stainbrook, 1947:310

Planovatirostrum Sartenaer, 1970:16

Platidia Costa, 1852:48

Pltilites Rafinesque, 1831 [incertae sedis]

Platyconcha Waterhouse, 1975:8

Platyglossarzorhynchus Sartenaer, 1970:8

Platymena Cooper, 1956c:879

Platymerella Foerste, 1909b:70

Platyorthis Schuchert and Cooper, 1931:246

* Platyrachella Fenton and Fenton, 1924:158 [= Spinocyrtia]

Platyselma Gordon, 1966:575

Platyspirifer Grabau, 1931a:355

Platystrophia King, 1850:106

Platylerorhynchus Sartenaer, 1970:5

Platythyris Middlemiss, 1959:109

Platytoechia Neuman, 1964:E20

* Playfairia Reed, 1917:866 [= Rafinesquina]

Plebejochoneles Boucot and Harper, 1968:159

Plectambonites Pander, 1830:90

Plectatrypa Schuchert and Cooper, 1930:279

Piedelasma Cooper and Grant, 1969:17

Medalla Larnansky, 1901 [nomen nudum]; 1905:22

Plecloccurzara Cooper, 1956c:596

Plectoconcha Cooper, 1942:233

Plectodonta Kozlowski, 1929:29

Plectodontella Havheek, 1953:8

Plectoglossa Cooper, 1956c:222

Plectoidothyris Buckman, 1914 [nomen nudum]; 1917:122

Plectorhynchella Cooper and Muir-Wood, 1951:195 [new name for Montzcola]

Plectorthis Hall and Clarkc, 1892:194

Plectospira Cooper, 1942:228 [new name for Ptychospira]

*Plectospirifer Grabau, 1931a:380 [= Adolfia]

Plectothyrella Temple, 1965:412

Plectothyris Buckman, 1914 [nomen nudum]; 1917:121

** Plectothyris Rollier, 1918 [junior homonym and junior objective synonym of Plectothyris Buckman, 1917]

Plectotreta IiIrich and Cooper, 1936a:339

Plectotrophia Ulrich and Cooper, 19366:627

Pleiopleurina Schmidt, 1964:506

Plekonella Campbell, 1953:17

Plesicarinatina Mizens, 1977a:89

Plesiothyris Douvillé, 1879:275

Plethorhyncha Hall and Clarke, 1893:191

Plethorhynchus.—Hall and Clarke, 1893 [misspelling of Plelhorhyncha]

Pleuranisis Rafinesque, 1831 [incertae sedis]

Picarelasma Cooper and Grant, 19766:2922

Pleurinea.—Dall, 1877 [misspelling of Pleurinia]

Pleurinia Rafinesque, 1820 [nomen nudum]

(Pleurochonetes) Isaacson, 1977a:175 [subgenus of Chonetes]

Pleurocornu Havlíček, 1961a:46

Pleurodium Wang, 1955:345

* Pleurohorridonia Dunbar, 1955:90 [= Horridonia]

Pleuropugnoides Ferguson, 1966:354

Pleurorthis Cooper, 1956c:329

Pleurothyrella Boucot, Caster, Ives, and Talent, 1963:89

†Pleurothyris Cloud, 1942 [replaced by Cloudella]

Plicanoplia Boucot and Harper, 1968:169

†Plicanoplia Havlíček, 1973 [replaced by Plicanoplites]

Plicanoplites Havlíček, 1974:170 [new name for Plicanoplia Havlíček, 1973]

Plicarostrum Burri, 1953:281

*Plicathyris Khalfin, 1946 [= Anathyris]

Plicatifera Chao, 1927:25

Plicatocyrtia Gauri, 1965:55

Plicatoderbya Thomas, 1937:14

Plicatolingula Liu, 1979:509

Plicatosyrinx Minato, 1952:168

Plicigera Bittner, 1890 [group term, no generic validity]

Plicirhynchia Allan, 1947a:493

Plicochonetes Paeckelmann, 1930:222

Plicocoelina Boucot and Johnson, 1966b:1038

Plicocyrtia Boucot, 1963:704

PlicocyrtMa Havheek, 1956:608

Plicodevonaria Boucot and Harper, 1968:162

(Plicogypa) Rzonsnitzkaja, 1975:27 [subgenus of Gypidula]

Plicoplasia Boucot, 1959a:19

Plicoproductus Ljaschenko, 1969a:14

Plicostricklandia Boucot and Ehlers, 1963:55

Plicostropheodonta Sokolskaja, 1960:214

Plicotorynijer Abramov and Solomina, 1970, in Menner et al., 1970:111; in Abramov, 1970:153

Plionomycherfrynchus Sartenaer, 1979a:537

(Pocockia) Lazarev, 1976:112 [subgenus of Schizophoria]

Podichnus Bromley and Surlyk, 1973 [ichnogenus]

Podolella Kozlowski, 1929:31

Podtsheremza Kalashnikov, 1965 [nomen nudum]; 1966:50

Poikilosakos Watson, 1917:215

Polymorpharia Cooper and Grant, 1975:1143

Polytoechia Hall and Clarke, 1892:239

Pomatospirella Bittner, 1892:26

Pomatotrema Ulrich and Cooper, 1932, in Schuchert and Cooper, 1932:109

Pomeromena Mitchell, 1977:112

Pompeckium Havlíček, 1970a:290

Pondospirifer Waterhouse, 1978:93

Pontielasma Waterhouse and Piyasin, 1970:163

Pontzsza Cooper and Grant, 1969:13

Porambonites Pander, 1830:95

Porarnbonitoides Xu, 1978a:315

Porarnborthzs Havheek, 1949a:107

Porostictia Cooper, 1955a:62

Portneufia Hoover, 1979:7

Portranella Wright, 1964:169

Postepzthyris Makridin, 1960, in Licharew et al., 1960:294

Postlobothyrella Tchorszhewsky, 1971 [nomen nudum]

Postrhapidothyris Tchorszhewsky, 1973 [nomen nuclum]

Pradoia Comte, 1938:44

Praecubanothyris Dagys, 1974:187

Praecyclothyri s Makridin, 1955:84

Praegnantenia Havlíček, 1961a:99

Praegoniolhyris Ovtsharenko, 1977 [nomen nudum]

Praehorridonza Ustritsky, 1962:57; 1963, in Ustritsky and Tschernjak, 1963:94

Praelacazella Smirnova, 1969a:81

Praelacunosella Wiśniewska-Żkelichowska, 1978:109

Praeleiorhynchus Rzonsnitzkaja, 1973 [nomen nudum]

Praelongithyris Middlemiss, 1959:134

Praernagas Fischer and Oehlert, 1892 [nomen nudum]

Praeneothyris Katz, 1962:143

Praenucleata Tchorszhewsky, 1973 [nomen nudum]

Praewaagenoconcha Sokolskaja, 1948:132

Prantlina Havlíček, 1949b:250

Priambonites.—Fischer de Waldheim, 1834 [misspelling of Plectambonites]

Primorewia Licharew and Kotljar, 1978:71

Prionites.—Fischer de Waldheim, 1834 [misspelling of Pronites]

Prionorhynchia Buckman, 1914 [nomen nudum]; 1917:62

Prionothyris Cloud, 1942:66

*(Prisco) Gregorio, 1930a:31 [subgenus of Lyttonia; = Leptodus]

Proatribonium Gratsianova, 1967:92

Probolarina Cooper, 1959:37

Probolionia Cooper, 1957b:27

Proboscidella Oehlert, 1887, in Fischer, 1887:1277

Proboscidina Branisa, 1965; Boucot, 1975 [nomina nuda; = Proboscidina Isaacson]

Proboscidina Isaacson, 19776:192

Procerulina Andronov, 1961:76

Prochlidonophora Thomson and Owen, 1979:28

Prochoristitella Legrand-Blain, [1969]:220

Proconchidium Sapelnikov, 1969, in Nikolayev and Sapelnikov, 1969:15

Prodavidsonia Havlíček, 1956:564

Producta.—Conybeare and Phillips, 1822; Sowerby, 1825 [misspelling of Productos]

Productella Hall, 1867b:154

Productellana Stainbrook, 1950:374

Productellma Reed, 1943:99

Productina Sutton, 1938:551

Productorthis Kozlowski, 1927:9

Productos Sowerby, 1814:153

Progonambonites Öpik, 1934:138

* Prokeyserlingina Fredericks, 1916 [hypothetical genus; Poikmlosakos]

Prokopia Havlíček, 1953:5

Promarginifera Shiells, 1966:428

(Pronalivkinia) Rukavischnikova 1977:134 [subgenus of Nalivkinia]

** Pronites Pander, 1830 [= Clitambonites]

* Propatella Grubb, 1939:558 [= Philhedra]

Propygope Bittner, 1890:210

Prorensselaeria Raymond, 1923:468

Proreticularia Havlíček, 1957a:247

Prorichthofenia King, [1931]:97

Proschizophoria Maillieux, 1912:177

Prospira Maxwell, 1954:35

Prosserella Graban; 1910, in Grabau and Sherzer, 1910:139

Prostricklandia Rukavischnikova and Sapelnikov, 1973:106

* Prosyringothyris Fredericks, 1916:51 [= Syringothyris]

Protambonites Havlíček, 1972, in HavhCek and Josopait, 1972:348

Protanidanthus Liao, 1979:537

Prolathyris Kozlowski, 1929:30

Protatrypa Boucot, Johnson, and Staton, 1964:809

Proteguliferina Licharew, 1960, in Sarytcheva et al., 1960: 236

Proleorthis Havlíček, 1974:168

Protobolus Liu, 1979:507

Protochonetes Muir-Wood, 1962:50

Protocortezorthis Johnson and Talent, 1967a:154

(Protocymostrophia) Harper and Boucot, 1978b:127 [subgenus of Alesodouvillina]

Protodouvillina Harper and Boucot, 1978b:138

Protogusarella Perry and Chatterton, 1979:317

Protoleptostrophia Caster, 1939:75

(Protomegastrophia) Caster, 1939:36 [subgenus of Megastrophia]

Protomendacella Havlíček, 1970b:31

Protonia.—Link, 1830 [misspelling of Productus]

Prolociella Bell, 1929:110

Protophragmapora Alekseeva, 1967:7

Protorhyncha Hall and Clarke, 1893:180

Protorthis hall and Clarke, 1892:232

(Protoshaleria) Harper and Boucot, 1978b:162 [subgenus of Materia]

* Protosiphon Matthew, 1897:70 [= Trematobolus]

Protoskenidioides Williams, 1974:83

Protosyphon.—Gorjansky, 1960 [misspelling of Protostphon]

Protosyringothyris.—Fredericks, 1918 [misspelling of Prosyringothyris]

Prolotreta Bell, 1938:405

Protozeuga Twenhofel, 1913, in Savage, 1913:51

Protozyga Hall and Clarke, 1893:149

Psamalhopalass Lu, 1979:510

Psebajithyris Tchorszhewsky, 1974:48

Pseudoanisopleurella Xu, 1978:222 [spelled Pseudoanisopeurella in paper]

Pseudoatrypa Copper, 1973:492

Pseudobolus Cooper, 1956c:194

Pseudobornhardtina Yang, 1977:460

Pseudocamarophoria Wedekind, 1926:197

Pseudocamarotoechia Kulkov, 1974, in Ivanovskii and Kulkov, 1974:53

Pseudochonetes Su, 1976:183

Pseudoconchidium Nikiforova and Sapelnikov, 1971:52

Pseudocrania McCoy, 1851:389

Pseudocyrlina Dagys, 1962a:54

Pseudoderbyia Licharew, 1934a:213

Pseudoadicellomus Bell, 1962, in Bell and Ellinwood, 1962: 407

* Pseudodicoelosia Boucot and Amsden, 1958:162 [= Rhipidomella]

Pseudodielasma Brill, 1940:317

* Pseudodouvillina Stainbrook, 1945:27 [= Nervostrophia]

Pseudogibbirhynchia Ager, 1962:108

Pseudoglossinotoechia Tcherkesova, 1967:9

Pseudoglossothyris Buckman, 1901:240

Pseudogruenewaldtia Rzonsnitzkaja, 1960:46

Pseudohalorella Dagys, 1965:66

Pseudohartlina Licharew, 1934a:212

Pseudohomeospira Nikiforova, 1970:139

*Pseudokeyserlingina Fredericks, 1916 [hypothetical genus; = Cardinocrania]

Pseudokingena Seise and Schlosser, 1900:177

Pseudolabaia Ching and Ye, 1979:130

Pseuyiolaballa Dagys, 1974:145

* Pseudoleiorhynchus Rozman, 1962:122 [= Trifidorostellum]

Pseudolepismatina Ching and Sun, 1976, in Ching et al., 1976:321

* Pseudoleplaena Miloradovich, 1947:96 [= Leptagonia]

**Pseudoleptaena Williams, 1965 [invalid new name for Leptaenella Sokolskaja, 1952, which is a junior objective synonym of Leptagonia]

Pseudoleptodus Stehli, 1956:311

Pseudolingula Mickwitz, 1909:771

Pseudomagas Makridin and Katz, 1965 [nomen nudurn]

Pseudomarginifera Stepanov, 1934:56

** Pseudomartinia Leidhold, 1928 [new name proposed for Martina Waagen, citation unknown; = Martinia]

Pseudometoptoma Huene, 1899:211

Pseudortudirostra Rozman, 1960 [nomen nudum]

*Pseudoorthotetes Sokolskaja, 1963 in Sarytcheva et al., 1963: 97 [= Orthotetes]

Pseudoparazyga Johnson, 1970b:181

* Pseudopentagonia Besnossova, 1963, in Sarytcheva et al., 1963:315 [= Composita]

Pseudopholidops Bekker, 1921:64

Pseudoporambonites Zeng, 1977:51

‡Pseudoprotathyris Modzalevskaja, 1979:59

Pseudopugnax Licharew, 1956, in Kiparisova et al., 1956:56

Pseudopygoides Xu, 1978b:303

Pseudorugitela Dagys, 1959b:100

Pseudosieberella Godefroid, 1972:3

Pseudospiri ferina Yang and Xu, 1966:41

Pseudostrophalosia Clarke, 1970:987

Pseudostrophomena Rōōmusoks, 1963:237

Pseudosyringothyris Fredericks, 1916:51

Pseudosyrinx Weller, 1914:405

Pseudotubi thyris Almeras, 1971:361

Pseudouncinulus Rzonsnitzkaja, 1968, in Markowskii, 1968: 111

Pseudowattomthyris Almeras, 1971:393

Pseudowellerella Licharew, 1956, in Kiparisova et al.; 1956: 58

Pseudoyunnanella Chen, 1978:336

Psilocamara Cooper, 1956a:523

†Psilonotus Stehli, 1954 [replaced by Elliottella]

Psiloria Cooper, 1976:282

Psilothyris Cooper, 1955c:10

Psioidea Hector, 1879:538

Psioidiella Campbell, 1968:33

Pterophloeus.—Bittner, 1890 [misspelling of Pterophloius]

Pterophlotos.—Zugmayer, 1880 [misspelling of Pterophloius] “Plerophloius Guembel, 1861 [= Bactrynium]

Pteroplecta Waterhouse, 1978:56

Pterospirifer Dunbar, 1955:128

Ptilorhynchia Crickmay, 1933:877

Ptilotorhynchus Cooper and Grant, 1976a:2011

Plychogiyptus Willard, 1928:283

Ptychomatetoechia Sartenaer, 1961a:7

Ptychopeltis Perner, 1903:42

Ptychopleurella Schuchert and Cooper, 1931:244

tPlychospira Hall and Clarke, 1894 [replaced by Plectospira]

Ptyclorhynchia Buckman, 1914 [nomen nudum]; 1917:47

Ptyclothyris Buckman, 1914 [nomen nudum]; 1917:101

Ptygmactrum Cooper and Grant, 1976a: 1939

Puanatrypa Xian, 1978a:302

Puanospirifer yang, 1978:329

Pugilis Sarytcheva, 1949:104 [replacement by Pugitus invalid, Pugilis not preoccupied]

** Pugilus Sarytcheva, 1952 [invalid new name for Pugilis, Pugilis not preoccupied]

Pugites DeHaan, 1838 [nomen nudum]

Pugnacina Zyong and Rzonsnitzkaja, 1968, in Zyong et al., 1968:?

Pugnax Hall and Clarke, 1893:203

Pugnoides Weller, 1910:512

Pulchratia Muir-Wood and Cooper, 1960:250

* Pulchrithyris Sahni, 1925:361 [= Carneithyris]

(Pulsia) Ivanov, 1925:114 [subgenus of Schellwienella]

Pumilus Atkins, 1958:560

Punctatopa Havlíček, 1953:8

Punctocyrtella Plodowski, 1968:252

Punctolira Ulrich and Cooper, 19366:628

* Punctopatella Grubbs, 1939:559 [= Petrocran a]

Punctospirella Dagys, 1974:136

Punctospirifer North, 1920:213

Punctothyris Hyde, 1953:288

Punaspinatrypa Rzonsnitzkaja, 1975:116

Purdonella Reed, 1944:218 [new name for Musella]

Pustula Thomas, 1914:259

Pustulatia Cooper, 1956b:769 [new name for Pustulina]

†Pustulina Cooper, 1942 [invalid new name for Vitulina, Pustulina preoccupied; replaced by Pustulatia]

Pustuloplica Waterhouse, 1968a:45

Pygites Buckman, 1906a:449 [new name for Pugites]

Pygmaella Baranov, 1977:80

Pygmochonetes Jing and Hu, 1978:111

Pygope Link, 1830:435

Pyraeneica Sučić-Protić, 1971:23

* Pyranadalia Nalivkin, 1947:124 [= Cyrtinaella]

Pyramina Ljaschenko, 1969a:23

Qiansispirtfer Yang, 1977:423

Qilianoconcha Ching, Sun, and Ye, 1979:166

Qilianotryma Xu, 19796:97

Qingyenia Yang and Xu, 1966:50

**Quadranetes Sadlick, 1963 [= Neochonetes]

Quadratia Muir-Wood and Cooper, 1960:162

Quadratirhynchia Buckman, 1914 [nomen nudum]; 1917:42

*Quadrifarius Fuchs; 1923:854; 1929:195 [= Delthyris]

(Quadrikentron) Boucot and Gauri, 1966:1023 [subgenus of Strophochonetes)

Quadrisonia Rowell and Henderson, 1978:6

Quadrithyrina Havliéek, 1959a:244

Quadrithyris Havljek, 19576:440

Quadrochonetes Stehli, 1954:309

Quangyuania Sheng, 1975:81

(Quaszavonia) Brunton, 1966:220 [subgenus of Avonia]

Quasimartinia Havlíček, 1957 [nomen nudum]; 1959a:257

(Quasistrophonella) Harper and Boucot, 1978a:98 [subgenus of Strophonella]

Quasithambonia Bednarczyk and Biernat, 1978:303

*Quebecia Walcott, 1905:320 [= Yorkia]

Quinguenella Waterhouse, 1975:2

Quizhouspirifer Xian, 1979:116

(Radiatrypa) Copper, 1978:293 [subgenus of Vanatrypa]

Radiomena Havlíček, 1962:471

Rafinesguina Hall and Clarke, 1892:282

Rallacosta Cooper and Grant, 1976a:2278

Ramavectus Stehli, 1954:327

Ranorthis Ópik, 1939:119

Rastelligera flector, 1879:538

Ratburia Yanagida, 1970:85

* Rauffia Schulz, 1914:371 [= Bornhardtina]

†Rauna Ópik, 1932 [replaced by Raunites]

Raunites Ópik, 1939:135 [new name for Rauna]

Rauozetina Havlíček, 1974:169

Rawdonia Peou, 1979:190

Raymondella Bancroft, 1933 [nomen nudum]

†Raymondella Whittington, 1938 [replaced by Bancroftina]

Rectirhynchia Buckman, 1917:74

Rectithyris Salmi, 1929:9

Rectotrophia Bates, 1968:176

Redlichella Walcott, 1908:90

(Reedoconcha) Kotljar, 1964:124 [subgenus of Productus]

Reeftonella Boucot, 1959c:768

Reeftonia Allan, 1947b:436

Reflexia Rotai, 1931:24

* Regelia Crickmay, 1952:2 [= Cyrtospirifer]

Reinversella Bates, 1968:169

Remnevitoechia Gratsianova, 1970, in Alekseeva et al., 1970: 97

(Renaudia) Racheboeuf, 1976:71 [subgenus of Eodevonaria]

Rensselaeria Hall, 1859b:38

Rensselaerina Dunbar, 1917:469

Rensselandia Hall, 1867a:385

Resserella Bancroft, 19286:54

Retaria Muir-Wood and Cooper, 1960:231

Retichoneles Muir-Wood, 1962:63

Relicularia McCoy, 1844:143

Reticulariina Fredericks, 1916:16

Relicularlopsts Fredericks, 1916:17

Reliculatia Muir-Wood and Cooper, 1960:284

Reticulatochoneles Bublichenko, 1956:97

Reticulatrypa Savage, 1970:663

Rehmargtnifera Watcrhouse, 1970:123

(Retrorszrostra) Schuchert and Cooper, 1931:244 [subgenus of Plaesiomys]

Retzia King, 1850:137

*Retziella Nikiforova, 1937:83 [= Rhynchospirina]

Retzispirifer Kulkov, 1960:929

Reuschella Bancroft, 1928a:180

Reushella.—Alichova, 1960 [misspelling of Reuschella]

Reveroides Sapelnikov, 1976:3

Rhaciomena Mitchell, 1977:111

Rhactorhynchia Buckman, 1914 [nomen nudum] 1917:50

Rhactorthis Williams, 1963:372

Rhaetina Waagen, 1882:334

Rhaetinopsis Yang and Xu, 1966:80

Rhamnaria Muir-Wood and Cooper, 1960:119

Rhapidothyris Tuluweit, 1965:72

Rhenorensselaeria Kegel, 1913:127

(Rhenospirifer) Mittmeyer, 1972:99 [subgenus of Euryspirifer]

(Rhenostrophia) Boucot, 1960a:483 [subgenus of Strophodonta]

Rherzothyrrs Struve, 1970:460

Rhmobolus.—Hall and Clarke, 1892 [misspelling of Rhynobolus]

Rhipidium Schuchert and Cooper, 1931:249

Rhipidomella Oehlert, 1890:372 [new name for Rhipidornys]

* Rhipidomelloides Boucot and Amsden, 1958:165 [= Rhipidomella]

Rhipidomena Cooper, 1956c:867

†Rhipidomys Oehlert, 1887 [replaced by Rhipidomella]

Rhipzdothyris Cooper and Williams, 1935:847

Rhizothyris Thomson, 1915d:399

Rhombothyris Middlemiss, 1959:99

*Rhynchairypa Siehl, 1962:199 [= Dubaria]

* Rhynchocamara Schuchert and Cooper, 1931:248 [= Camerella]

Rhynchoferella Spriestersbach, 1942:199

Rhynchonella Fischer de Waldheim, 1809:35

Rhynchonelhna Gcmmellaro, 1871:102

Rhynchorzellzs.—Keferstein, 1828 [misspelling of Rhynchonella]

Rhynchonelloidea Buckman, 1914 [nomen nuclum]; 1917:38

Rhynchonelloidella Muir-Wood, 1936a:49

Rhynchonellopsis BOse, 1894 [replaced by Capillirostra]

†Rhynchonellopsis Gregorio. 1930 [replaced by Sulcirostra]

Rhynchonellopsis Vincent, 1893:50

Rhynchopora King, 1865:124 [replacement by Rhynchoporina invalid, Rhynchopora not preoccupied]

** Rhynchoporina Oehlert, 1887 [invalid new name for Rhynchopora, Rhynchopora not preoccupied]

Rhynchora Dalman, 1828:136

Rhynchorma Oehlert, 1887, in Fischer, 1887:1326

Rhynchorthis Bates, 1968:160

†Rhynchospira Hall, 1859 [replaced by Rhynchospirina]

* Rhynchosprifer Paulus, 1957:51 [= Prosserella]

Rhynchospirina Schuchert and LeVene, 1929:121 [new name for Rhynchospiza]

Rhynchotetra Weller, 1910:506

Rhynchotrema Hall, 1860:68

Rhynchotreta Hall, 1879:166

Rhynchotretina Khalfin, 1948:175

Rhynchura.—Agassiz, 1848 [misspelling of Rhynchora]

Rhyncospira.—Hall, 1859 [misspelling of Rhynchospira]

Rhynobolus Hall, 1871a:5

Rhyselasma Yadrenkina, 1972:177

Rhysostrophza Ulrich and Cooper, 19366:630

Rhysotrela Cooper, 1956c:259

Rhyssochonetes Johnson, 1970a:2095

Rhytiophora Muir-Wood and Cooper, 1960:192

Rhytirhynchia Cooper, 1957a:8

Rhydisia Cooper and Grant, 1975:967

* Rhyiistrophia Caster, 1939:86 [= Leptostropha]

Richthqfenia Kayser, 1881:351

Rictia Gregorio, 1930a:27

Rigbyella Stehli, 1956:310

Rimirhynchia Buckman, 1914 [nomen nudum] 1917:60

Rimirhynchopsis Dagys, 1963:71

Rzograndella Kobayashi, 1937:422

Rionirhynchur Kvakhadze, 1971 [nomen nudum]

Rioultina Pajaud, 1966c:631

Ripidiorhynchus Sartenaer, 1966a:2

Robertorthis Havlíček, 1977a:51

Robinsonella Moisseiev, 1936:45

Robustirhynchia Seifert, 1963:174

Rochatorhynchm Katz, 1962:132

Rocheithyris Almeras, 1971:345

Roemerella Hall and Clarke, 1890:137

Romtrigerina Hall and Clarke, 1893:271

Rorespiri fer Waterhouse and Piyasin, 1970:156

Rosella Andreeva, 1972:52

†Rossella Jones, 1978 [replaced by Nanukidium]

Rossirhynchus Gaetani, 1964:638

Rostranteris Gemmellaro, 1898 [nomen nudum]; 1899:104

Rostricellula Ulrich and Cooper, 1942:626

Rostrirhynchia Sučić-Protić, 1969:47

* Rostrospirifer Grabau, 1931c:407 [= Euryspirifer]

Rotaia Rzonsnitzkaja, 1959:30 [new name for Welleria Rotai, 1941]

Rotundostrophia Gratsianova, 1960, in Khalfío, 1960b:439

Rouillieria Makridin, 1960, in Licharew et al., 1960:295

Rowellella Wright, 1963:233

* Rowleyella Weller, 1911:448 [= Camarospira]

Rozmanaria Weyer, 1972:85

** Rudinia Muir-Wood and Cooper, 1960 [= Desmoinesia]

Rudirhynchia Buckman, 1914 [nomen nudurn]; 1917:44

Ruegenella Owen, 1977:224

Rugalwrostrum Sartenaer, 1961a:6

Rugaria Cooper and Grant, 1969:5

Rugatia Muir-Wood and Cooper, 1960:286

Rugauris Muir-Wood and Cooper, 1960:193

Rugia Steinich, 1963:735

Rugicostella Muir-Wood and Cooper, 1960:167

Rugitela Muir-Wood, 1936a:121

Rugithyris Buckrnan, 1915 [nomen nudum]; 1917:127

Rugivestis Muir-Wood and Cooper, 1960:235

Rugoclostus Easton, 1962:59

Rugoconcha Ching and Sun, 1979 [nomen nudum]

Rugoleptaena Havlíček, 1956:558

Rugosatrypa Rzonsnitzkaja, 1975:98

Rugosochonetes Sokolskaja, 1950:23

(Rugosowerbyella) Mitchell, 1977:83 [subgenus of Sowerbyella]

Rugostrophia Neuman, 1971:119

* Rugulatia Sokolskaja, 1952, in Sarytcheva and Sokolskaja, 1952:187 [= Licharewia]

Russtella Makridin, 1964:288

Russirhynchia Buckman, 1914 [nomen nudum]; 1917:52

* Rustella Walcott, 1905:311 [= Kutorgina]

** Ruthenia Fredericks, 1928 [= Waagenoconcha]

Rzonsnickiana Mamedov, 1976:121

Saccogonum Havlíček, 1971c:27

Saccorhynchia Ching, Sun, and Ye, 1979:154

Sacothyris Ching, Sun, and Ye, 1979:214

Sagueresia Mohanti, 1972:172

Sajakella Nasikanova, 1968, in Saryteheva, 1968:141

Sakazvairhynchia Tokuyama, 1957b:126

Salacorthis Williams, 1974:79

Salairina Alekseeva, 1970, in Alekseeva et al., 1970:131

Salauoloechia Rzonsnitzkaja, 1968, in Markowskii, 1968: 123

Salgirella Moisseiev, 1936:48

Salonia Cooper and Whitcomb, 1933:496

Salopia Williams, 1955, in Whittington and Williams, 1955:409

Salopina Boucot, 196013:3

Sampo Öpik, 1933a:35

Sandia Sutherland and Harlow, 1973:41

Sanjuania Amos, 1958:841

Sangiaothyris Yang and Xu, 1966:83

Sapelnikonia Boucot, 1975 [nomen nudurn; = Sapelnikoma Boucot and Johnson, 1979]

**Sapelnikovia Boucot and Johnson, 1979:118 [= Reveroides]

Sardope Dieni et al., 1973:196

Sarganosiega Cooper and Grant, 1969:15

Saucrorthis Xu, Rong, and Liu, 1974:151

*Saughina Bancroft, 1949a:7 [= Fardenia]

Saukrodictya Wright, 1964:219

(Savageina) Boucot, 1975:355 [subgenus of Anastrophia]

Scacchinella Gemmellaro, 1891:23

Scalpellirhynchia Muir-Wood, 1936b:477

Scambocris Liu, 1979:507

Scamnomena Bassett, 1977:134

Scapharina Cooper and Grant, 1975:895

Scaphelasma Cooper, 1956c:260

Scaphtocoelia Whitfield, 1891:107

Scaphorthis Cooper, 1956c:502

Sceletonia Cooper and Grant, 1974:406

Scenesia Cooper and Grant, 1976b:2757

Scenidium.—Oehlert, 1887 [misspelling of Skenidium]

Schachriomonia Nikiforova, 1978:118

Schedophyla Neuman, 1971:122

Schegultania Andronov, 1961 [nomen nudum]

Schelhvienella Thomas, 1910:92

Schistochonetes Roberto, 1971:54

Schizambon Walcott, 1884:70

Schizambonia.—Oehlert, 1887 [improper emendation of Schizambon]

Schizobolus Ulrich, 1886:26

Schizocrania Hall and Whitfield, 1875:71

†Schizonema Foerste, 1909 [replaced by Schizoramma]

Schizopholis Waagen, 1885:753

Schizophorella Reed, 1917:858

Schizophoria King, 1850:106

Schtzorarnma Foerste, 1912:139 [new name for Schizonema]

Schtzospirifer Grabau, 1931a:353

Schizotreta Kutorga, 1848:274

Schizotretoides Termier and Monod, 1978:151

†Schmidtia Volborth, 1869 [replaced by Schmidtites]

Schmidtites Schuchert and LeVene, 1929:121 [new name for Schmidtia]

Schnurella Schmidt, 1964:505

Schnuria Clarke, 1889 [nomen nudum]

Schrenkiella Barchatova, 1970 [nomen nudum]; 1973:97

Schuchertella Girty, 1904:734

Schuchertellopsis Maillieux, 1939:5

†Schucherlia Fredericks, 1926 [replaced by Striispirifer]

Schuchertina Walcott, 1905:323

Schrvagerispira Dagys, 1972a:101

Scoloconcha Gordon, 1966:583

Scumulus Steinich, 1968a:199

Scutepustula Sarytcheva, 1963, in Sarytcheva et al., 1963: 165

Sedenticellula Cooper, 1942:231

Selenella Hall and Clarke, 1893:271

Sellithyris Middlemiss, 1959:113

Selloproductus Termier, Termier, Lapparent, and Marin, 1974:143

Semenewia Paeckelmann, 1930:224

Semibrachythyrina Yang and Ting, 1962, in Yang et al., 1962:104

Semicostella Muir-Wood and Cooper, 1960:195

*Seminula McCoy, 1844:158 [= Composita]

Semiotoechia Ljaschenko, 1973:44

SemzPlanella Sarytcheva and Legrand-Blain, 1977:79

Semzplanus Sarytcheva, 1952, in Sarytcheva and Sokolskaja, 1952:119

SemzProduclus Bublichenko, 1956:99

Semitreta Biernat, 1973:75

Sendaithyris Hatai, 1940:253

Senokosica Sui-Proti, 1971:28

Sentolurna Havlíček, 1967a:53

Sentosia Muir-Wood and Cooper, 1960:196

Septacamera Stepanov, 1937:146

Septacatazyga Distler, 1972 [nomen nudum]

Septachonetes Chatterton, 1973:76

Septalaria Leidhold, 1928:38

Septalariopsis Chen, 1978:331

Septalzphoria Leidhold, 1921:354

Septali phorioidea Yang and Xu, 1966:29

Septamphiclina Jin and Fang, 1977:57

Septaparmella Su, 1976:185

Septarinia Muir-Wood and Cooper, 1960:252

Septasteges Waterhouse and Piyasin, 1970:120

Septathyris Boucot, Johnson, and Staton, 1964:819

Septatoechia Lobatscheva and Titova, 1977:102

Septatrypa Kozlowski, 1929:30

Septemirostellum Roberts, 1971:132

Septiconcha Termier, Termier, Lapparent, and Marin, 1974:125

Septirhynchia Muir-Wood, 1935:106

Septocamera.—Licharew, 1960 [misspelling of Septacamera]

Septocrurallia Makridin, 1954 [nomen nudum]

Seplocrurella Wiśniewska, 1932:65

Septocrurethyris Askerov, 1964; 1965; 1967 [nomina nuda]

Septocyclothyris Xu, 1978b:282

*Septoproductus Frech, 1911:132 [= Tschernyschewia]

Septorthis Hints, 1973:251

Septospirifer Waterhouse, 1971, in Bamber and Waterhouse, 1971:222

Septospirigerella Grunt, 1965, in Ruzhentsev and Sarytcheva, 1965:237

Septosyringothyris Vandercammen, 1955:2

Septothyris Cooper and Williams, 1935:849

Septulirhynchia Almeras, 1966:110

(Seratrypa) Copper, 1967a:132 [subgenus of Desquamatia]

Serbiothyris Sučić-Protić, 1971:25

Sergospirifer Ivanova, 1952, in Sarytcheva and Sokolskaja, 1952:190

Sergunkovia Nalivkin, 1979:129

Sericoidea Lindström, 1953:134

Serratocrista Brunton, 1968:39

Serrulatrypa Havlíček, 19776:299

Sestropoma Cooper and Grant, 1969:8

†Setigerella Girty, 1938 [replaced by Setzgerites]

Setigerites Girty, 1939:141 [new name for Setigerella]

Settedabania Abramov, 1970:148

(Sezzerella) Sapelnikov, 1963:15 [subgenus of Brooksina]

Shagamella Boucot and Harper, 1968:167

Shaleria Gasten, 1939:34

Shaleriella Harper and Boucot, 1978b:160

Shiqianella Xian, 1978a:272

*Shiragia Kobayashi, 1935:70 [= Bohermella]

Shizotreta.—Davidson, 1856 ]misspelling of Schizotreta]

Shrockia Boucot and Smith, 1978:268

Shroshaerhynchia Ovtsharenko, 1977 [nomen nudum]

Shumardella Weller, 1910:512

Siberiothyris Dagys, 1968:128

Siberistrophia Astashkina, 1970:131

Sibiratrypa Rzonsnitzkaja, 1975:100

Sibirra Gorjansky, 1977, in Pelman, 1977:47; in Gorjansky, 1977:99

Sibirzrhynchia Rzonsnitzkaja, 1978 [nomen nudum]

Sibirispira Alekseeva, 1968:198

Sibuttoechia Alekseeva, 1966:1147

Sicelia Gortani and Merla, 1934:284 [new name for Gemmellaria]

Sichuanrhynchus Tong, 1978:243

Sicorhyncha Havlíček, 1961a:28

Sieberella Oehlert, 1887, in Fischer, 1887:1311

** Sieberina Andronov, 1961 [= Gypidulina]

Sikasella Nalivkin, 1979:156

Sileszathyris Briigge, 1977:664

Simplicarina Cooper and Grant, 1975:966

Simplicithyris Zezina, 1976:101

*Sinocyrtiopsis Gatinaud, 1949:491 [= Cyrtiopsis]

Sinoproductella Wang, 1955:350

**Sinoproductus Chan, 1962 [= Monticulifera]

Sinorhynchia Yang and Xu, 1966:32

Sinorthis Wang, 1955:328

Sinoshaleria Xian, 1978a:268

*Sinospirifer Graban, 1931a:231 [= Cyrtospirifer]

Sinostrophia Hamada, 1968 [nomen nudum]; 1971:52

Sinotectirostrum Sartenaer, 1961a:3

* Sinothyris Minato, 1953:68 [= Reticularia]

Sinuatella Muir-Wood, 1928:37

Sinucosta Dagys, 1963:104

Sinuplicorhynchia Dagys, 1965:56

Siphonosia Cooper and Grant, 1975:1188

Siphonotreta Verneuil, 1845:286

Skelidorygma Carter, 1974:692

Skenidioides Schuchert and Cooper, 1931:243

Skenidium Hall, 1860:70

Slovenirhynchia Siblík, 1967:159

Smeathenella Bancroft, 1928a:177

Socraticum Gregorio, 1930a:25

Solidzpontirostrum Sartenaer, 1970:22

Somalirhynchia Weir, 1925:80

Somaliiela Muir-Wood, 1935:140

Somatithyris Muir-Wood, 1935:124

*Soudleyella Bancroft, 1945:209 [= Onniella]

*Sowerbina Fredericks, 11928]: 778 [= Horridonia]

Sowerbyella Jones, 1928:384

Sowerbyites Teichert, 1937:66

Spanodonta Prendergast, 1935:13

Spassko/hyris Smirnova, 1975c:74

Sphaerirhynchia Cooper and Muir-Wood, 1951:195 [new name for Wilsonella]

* Sphaerobolus Matthew, 1895:263 [= Lingulobolus] Sphaeroidothyris Buckman, 1914 [nomen nudum]; 1917:115

Sphenalosia Muir-Wood and Cooper, 1960:88

Sphenarina Cooper, 1959:63

Sphenophragmus Imbrie, 1959:365

Sphenorhynchia Buckman, 1914 [nomen nudurn]; 1917:30

Sphenorilies Grubbs, 1939:555

Sphenospira Cooper, 1954:330

Sphenosteges Muir-Wood and Cooper, 1960:108

Sphenotreta Cooper, 1956c:663

Spinarella Cooper and Grant, 1975:1059

Spinatrypa Stainbrook, 1951:196 [new name for Hystricina]

Spinatrypina Rzonsnitzkaja, 1964:101

Spinauris Roberts, 1971:107

Spinella Talent, 1956:21

Spimfrons Stehli, 1954:318

Spinilingula Cooper, 1956c:210

Spinocarinifera Roberts, 1971:100

Spinochonetes Rong, Xu, and Yang, 1974:204

Spinocyrtia Fredericks, 1916:18

* Spinocyrtina Fredericks, 1916:18 [Cyrtina]

Spinolepismatina Dagys, 1974:147

Spinolyttonia Sarytcheva, 1964:69

Spinomarginifera Huang, 1932:19

Spinomartinia Waterhouse, 1968a:53

Spinoplasia Boucot, 1959a:18

Spinorthis Wright, 1964:185

Spinorugifera Roberts, 1976:50

†Spinospirifer Biernat, 1966:117

Spinospirifer Martynova, 1961:107

Spinostrophia Jiang, 1978:267

Spinulicosta Nalivkin, 1937:49

Spinuliplica Campbell, 1961:442

Spinulothele Rowell, 1977:76

Spinulothyris Antostschenko, 1973:112

Spirelytha Fredericks, [1924a]:304

Spiridiophora.—Sarytcheva, 1960 [misspelling of Spyridiophora]

Spirifer Sowerby, 1818:41

Spirifera.—Murray, 1831 Sowerby, 1835 [misspelling of Spirifer]

Spiriferella Tschernyschew, 1902:121

Spiriferellina Fredericks, [1924a1:299

Sipiriferina Orbigny, 1847:268

Spiriferinaella Fredericks, 1926:407

Spiriferinoides Tokuyama, 1957a:101

Spiriferus.—Blainville, 1827 [misspelling of Spirifer]

Spirigera Orbigny, 1847 [invalid new name for Athyris, Athyris not preoccupied]

Spirigerella Waagen, 1883:452

Spirigerellina Dagys, 1974:160

Spirigerina Orbigny, 1847:268

Spirinella Johnston, 1941:161

Spirisosium Gregorio, 1930a:23

* Spirithyris Quenstedt, 1868 [nomen nudum; = Athyris]

Spiropunctifera Ivanova, 1971: 120

Spazbergenia Kotljar, 1977:155

Spondilobolus.—Gorjansky, 1960 [misspelling of Spondylobolus]

Spondylobolus McCoy, 1851:408

Spondylobus.—Davidson, 1853; Dall, 1870 [misspelling of Spondylobolus]

Spondylopyxis Johnson, Boucot, and Murphy, 1976:47

Spondylospira Cooper, 1942:232

(Spondylospiriferina) Dagys, 1972c:38 [subgenus of Pennospiriferina]

Spondylostrophia Kulkov, 1967:33

Spondylotreta Cooper, 1956c:255

Spuriosa Cooper and Grant, 1975:898

Spurispirifer Havlíček, 1971a:27

Spyridiophora Cooper and Stehli, 1955:471

Squamaria Muir-Wood and Cooper, 1960:288

Squamatina Havli-eck and Racheboeuf, 1979:109

Squamilingulella Xu, 1978a:285

SquanuPlana Suéié-Proti, 1971:8

Squamirhynchia Buckman, 1914 [nomen nudum]; 1917:63

* Squamularia Gemmellaro, 1899:192 [= Phricodothyris]

Squamulariina Fredericks, 1916:19

Stegacanthia Muir-Wood and Cooper, 1960:198

Stegerhynchops Amsden, 1978:27

Stegerhynchus Foerste, 1909b:97

Stegocornu Ditrkoop, 1970:185

Stegorhynchella Rzonsnitzkaja, 1959:27

Steinhagella Goldring, 1957:223

Stelckia Crickmay, 1963:21

Stenaulacorhynchus Sartenaer, 1968a:3

Stenocamara Cooper, 1956c:602

Stenochisma.—Schuchert, 1897; Grabau and Shimer, 1909 [improper emendation of Stenosczsma]

Stenocisma.—Hall, 1847 [improper emendation of Stenoscisma]

Stenoglossariorbynchus Sartenaer, 1970:6

(Stenopentamerus) Boucot, 1975 [nomen nudum; = (Stenopentamerus) Boucot and Johnson, 1979]

(Stenopentamerus) Boucot and Johnson, 1979:111 [subgenus of Harpidium]

Stenosarina Cooper, 1977:95

Stenoschisma.—Oehlert, 1887; Hall and Clarke, 1894 [improper emendation of Stenoscisma]

Stenoscisma Conrad, 1839:59

*Stepanoviella Zavodowsky, 1960:336 [= Globzella]

Stepanoviina Zavodowsky, 1968, in Markowskii, 1968:170

Stereochia Grant, 1976:150

Stethothyris Thomson, 1918:23

Stichotrophia Cooper, 1948:473

Stictozoster Grant, 1976:96

Stiphrothyris Buckrnan, 1915 [nomen nudum]; 1917:109

Stipulina Muir-Wood and Cooper, 1960:200

*(Stila) Gregorio, 1930a:32 [subgenus of Lyttonia; = Adriana]

Stohnorhynchia Buckman, 1914 [nomen nudum]; 1917:46

Stolzenburgiella Bittner, 1903:508

Straelenia Maillieux, 1935:12

Streptaria Cooper, 1959:39

Streptis Davidson, 1881a:150

Streptopomum Havlíček, 1967a:207

Streptorhynchus King, 1850:107

Striarina Cooper, 1973a:7

Striatifera Chao, 1927:94

Striatochonetes Mikrjukov, 1968, in Markowskii, 1968:90

Striatoproductella Krylova, 1962:55

*Striatoproductus Nalivkin, 1947:75 [= Devonoproductus]

Strzatopugnax Chen, 1978:322

Striatospica Waterhouse, 1975:11

Stricklandia Billings, 1859a:134 [replacement by Stricklandinia invalid, Stricklandza not preoccupied]

Stricklandiella Sapelnikov and Rukavischnikova, 1973:36

**Stricklandinia Billings, 1863 [invalid, new name for Stricklancha, Stricklandia noti preoccupied]

Stricklandistrophia Sapelnikov and Rukavischnikova, 1975b:96

Strigirhynchia Cooper and Grant, 1969:14

Strigocephalus.—DeFrance, 1827 [misspelling of Strygocephale]

Strigospina Liao, 1979:536

Striirhynchia Buckman, 1914 [nomen nudum]; 1917:68

Striispirifer Cooper and Muir-Wood, 1951:195 [new name for Schuchertia]

Striithyris Muir-Wood, 1935:129

Stringocephalus Defrance, 1825, in Blainville, 1825:511; Sandberger, 1842 [misspelling of Strygocephale; however, ICZN opinion 807 validated spelling]

(Stringomimus) Struve, 19656:461 [subgenus of Geranocephalus]

Striochonetes Waterhouse and Piyasin, 1970:106

*Strixella Boucot and Amsden, 1958:170 [= Rhipidomella]

Strophalosza King, 1844:313

Strophalosiella Licharew, 1935:372

Strophalosiina Licharew, 1935:369

Stropheodonta.—Hall, 1852 [misspelling of Strophodonta]

Stropheria Rafinesque, 1820 [nomen nudum]

Strophesia Rafinesque, 1831 [nomen nudum]

Strophzodonta.—Pactel, 1875 [misspelling of Strophodonta]

Strophochoneles Muir-Wood, 1962:40

Strophodonta Hall, 1850:348

Stropholosia.—Gray,> 1848 [misspelling of Strophalosia]

Strophomena Rafmesque, 1824, in Blainville, 1824:302

Strophomene.—Bayle, 1878 [misspelling of Strophomenes]

Strophomenes Rafinesque, 1820 [nomen nudum]

Strophonella Hall, 1879:154

Strophonellites HavhCck, 1967a:184

Strophonelloides Caster, 1939:106

Strophopleura Stainbrook, 1947:324

Strophoprion Twenhofel, 1914:25 [= Strophonella]

Strophoproductus Nalivkin, 1937:46

Strophorichthofenia Termier, Termier, Lapparent, and Marin, 1974:123

Stroudithyris Buckman, 1915 [nomen nudum]; 1917:111

Struveina Boucot, 1975:364

Strygocephale Defrance, 1824 [nomen nudum]; 1825 [ICZN opinion 807 validated spelling as Stringocephalus]

Strygocephalus.—Keferstein, 1828 [misspelling of Shygocephale]

*Stuariella Belanski, 1928:24 [= Hamburgia]

Sturtella Savage, 1971:417

Styriasis Rafinesque, 1831 [nomen nudum]

Subansiria Sahni and Srivastava, 1956:212

Subcuspidella Mittmeyer, 1965:81

Subglobosochoneles Afanasjeva, 1976:67

Subrensselandia Cloud, 1942:92

Subriana Sapelnikov, 1960b:111

Substrialifera Kotljar, 1964:123

Suessia Deslongchamps, 1855:539

Szhaella Moisseiev, 1956, in Kiparisova et al., 1956:61

Sulaella Barchatova, 1970[nomen nudurn]

Sulcalaria Cooper and Grant, 1969:5

Sulcathyris Dürkoop, 1970:190

Sulcalzrza Schmidt, 1964:506

Sulcatinella Dagys, 1974:177

(Sulcatospira) Xu, 1979b:109 [subgenus of Zygospira]

Sulcatospirtfer Maxwell, 1954:11

*Sulcatostrophia Caster, 1939:81 1= Neroostrophia]

Sulcatothyris Dagys, 1974:176

Sulaplica Waterhouse, 1968a:25

Sulcirhynchia Burri, 1953:271

Sulcirostra Cooper and Muir-Wood, 1951:195 [new name for Rhynchonellopsis Gregorio, 1930]

Sulcorhynchia Dagys, 1974:103

(Supertrilobus) Boucot, 1975 [nomen nudum; = (Supertrilobus) Boucot and Johnson, 1979]

(Supertrilobus) Boucot and Johnson, 1979:100 [subgenus of Peotamerus];

Surugathyris Yabe and Hatai, 1934:588

‡Svalbardia Barchatova, 1970 [nomen nudum]; Afanasjeva, 1977a:26

Svaljavithyris Tchorszhewsky, 1974:55

Svobodaina Havlíček, 1950:38

Svobodiana.—Alichova, 1960 [misspelling of Svobodaina]

Swaicoelia Hamada, 1968a:6

Swalbardoproductus Ustritsky, 1971 [nomen nudum]

Swantonia Walcott, 1905:296

Symmatrypa Mizens and Sapelnikov, 1975:43

Symphyihyris Smirnova, 1966:37

(Synatrypa) Copper, 1966b:10 [subgenus of Desquamatia]

Syndielasma Cooper, 1956c:743

Syntrielasma.—Meek and Worthen, 1866 [misspelling of Syntrilasma]

* Syntrilasma Meek and Worthen, 1865, in Meek, 1865:277 [= Enteletes]

Syntrophia Hall and Clarke, 1892 [nomen nudum]; 1893: 216

Syntrophina Ulrich, 1928, in Weller and St. Clair, 1928:74

Syntrophinella Ulrich and Cooper, 1934 in Kobayashi, 1934: 164

Syntrophioides Schuchert and Cooper, 1931:247

Syrdrophopsis Ulrich and Cooper, 1936b:630

Syphonotreta.—Rouiller and Vossinsky, 1847 [misspelling of Siphonotreta]

*Syringopleura Schuchert, 1910:224 [= Syringothyris]

Syringospira Kindle, 1909:29

Syringothyris Winchell, 1863:7

Szajnochiella Tchorszhewsky, 1973 [nomen nudum]

Tadschzkra Nikiforova, 1937:35

Taemostrophia Chatterton, 1973:43

Taeniothaerus Whitehouse, 1928:281

Taffza Ulrich, 1926, in Butts, 1926:100

Tafilaltia Havlíček, 1970b: 17

Taimyrella Ustritsky, 1963, in Ustritsky and Tschernjak, 1963:115

Taimyropszs Ustritsky, 1963, in Ustritsky and Tschernjak, 1963:69

Taimyrothyris Dagys, 1968:118

Tainotoechia Tcherkesova, 1967:5

Taleoleplaena Havlíček, 1967a:121

Tamarella Owen, 1965:57

Tana/cura Hatai, 1936:322

Tanerhynchia Allan, 1947b:442

Tangkouella Grabau, 1931 [nomen nudum]

Tangshanella Chao; 1929:57

Tangxiangia Xu, 1977:68

Tannuspirifer Ivanova, 1960:267

Tapajotia Dresser, 1954:33

Taphrodonta Cooper, 1956c:740

Taphrorthis Cooper, 1956c:326

Taphrosestria Cooper and Grant, 1975:954

Tarandrospirzfer Simakov, 1970:88

Tarfaya Havliéek, 1971c:32

Tastaria Havaek, 1965b:6

Tauromenia Seguenza, 1885:253

Taurothyris Kyansep, 1961:27

Tcadosia Cooper and Grant, 1969:14

Tazzarinia HavIreek, 1971c:39

Tchegemithyrzs Tchorszhewsky, 1972:38

Tcherskidiurn Nikolayev and Sapelnikov, 1969:12

Tecnocyrtina Johnson and Norris, 1972:566

Tectarea Licharew, 1928:268

Tectorthls Maillieux, 1940 [nomen nudum]

†Tegulifera Schellwien, 1898 [replaced by Teguliferina]

Teguliferina Schuchert and LeVene, 1929:121 [new name for Tegulifera]

Tegulithyrzs Buckman, 1915 [nomen nudurn]; 1917:123

Tegulorhynchia Chapman and Crespin, 1923:175

Teichertina Veevers, 1959:37

Teichostrophia Harper, Johnson, and Boucot, 1967:420

(TelaeosIzaleria) Williams, 1950:281 [subgenus of Shateria]

Tenellodermis Havlíček, 1971a:11

Tenisia Martynova, 1970:68

Tenticospirifer Tien, 1938:113

Tenuiatrypa Rzonsnitzkaja, 1975:91

Tenuichonetes Jing and Hu, 1978:109

Tenuicostella Mittmeyer and Geib, 1967:40

Tenuismurostrum Sartenaer, 1967:2

Teratelasma Cooper, 1956c:823

Terebratalza Beecher, 1893:382

Terebrataliopsis Smirnova, 1962:98

Terebratella Orbigny, 1847:269

Terebratula Müller, 1776:249

Terebratularius Duméril, 1806 [nomen nudum]

Terebratulier Duméril, 1806 [vernacular; = Terebratularius]

Terebratulina Orbigny, 1847:268

Terebratulites Martini, 1769 [nomen nudum]

Terebratuloidea Waagen, 1883:415

*Terebratulopsis Gregorio, 1930b:8 [= Rhynchonellina]

Terebrirostra Orbigny, 1847:269

Terrakea Booker, 1931:66

Tesuquea Sutherland and Harlow, 1973:53

‡Tethorotes Manankov, 1979:50

Tetracamera Weller, 1910:503

Tetractinella Bittner, 1890:300

(Tetragonetes) Cooper and Grant, 1975:1246 [subgenus of Dyoros]

Tetralobula Ulrich and Cooper, 1936b:628

Tetraodontella Jaanusson, 1962:1

Tetraphalerella Wang, 1949:29

Tetrarhynchia Buckman, 1914 [nomen nudum]; 1917:41

Tetra/orma Schmich, 1941:13

Texarina Cooper and Grant, 1970:579 lnew name for Texasia]

†Texasia Cooper and Grant, 1969 treplaced by Texarina]

Texathyris Carter, 1972:730

*Thaerodonta Wang, 1949:19 [= Eoplectodonta]

Tharnnosia Cooper and Grant, 1969:10

Thaumatosia Cooper, 1973a:15

Thaumatrophia Wang, 1955:343

Thebesia Amsden, 1974:69

Thecedea.—Orbigny, 1847 [misspelling of Theczdea]

Thecidaea.—Keferstein, 1828 [misspelling of Thecidea]

Thecidea Defrance, 1822, in Férussac, 1822:xxxviii

Thecidella Munier-Chalmas, 1887, in Fischer, 1887:1331

* Thecidellella Hayasaka, 1938:10 [= Thecidellina]

Thecidellma Thomson, 1915c:462

Thecideum.—Fischer de Waldheim, 1834 [misspelling of Thecidium]

Thecichopsis Munier-Chalmas, 1887, in Fischer, 1887:1330

Thecidium.—Sowerby, 1823 [misspelling of Thecidea]

Thecocyrtella Bittner, 1892:15 [new name for Pyrtolheca]

Thecocyrtelloidea Yang and Xu, 1966:58

Thecospira Zugmayer, 1880:152

Thecospirella Bittner, 1900:46

Thecospiropsis Dagys, 1974:75

Thedusia Cooper and Grant, 19766:2807

Theodossia Nalivkin, 1925:282

Thiemella Williams, 1908:60

Thliborhynchia Lenz, 1967:1188

Thomasaria Stainbrook, 1945:57

Thomasella Fredericks, [19281:778

†Thomasella Paul, 1942 [invalid new name for Thomasina Paeckelmann, 1931, Thomasella preoccupied; replaced by Argentzproductus]

†Thornasia Fredericks, [1928] [replacement by Thomasina Paeckelmann, 1931, invalid, Thomasina preoccupied; replacement by Thomasella Paul, 1942, invalid, Thomasella preoccupied; replaced by Argentiproductus]

†Thomasina.—Bigot, 1927 [misspelling of Tomasina]

†Thomasina Paeckelmann, 1931 linvalid new name for Thomasia Fredericks, 1928, Thomasina preoccupied; replacement by Thomasella Paul, 1942, invalid, Thomasella preoccupied; replaced by Argentiproductus]

†Thornsonia Jackson, 1916 Ireplaced by Cacata and Coptothyris]

** Thomsonica Cossman, 1920 [invalid new name for Aetheia, Aetheia not preoccupied]

Thuleproductus Sarytcheva and Waterhouse, 1972:67

Thurmannella Leidhold, 1921:357

Thysanotos Mickwitz, 1896:130

Tianzhushanella Liu, 1979:509

Tibetothyris Ching and Sun, 1976, in Ching et al., 1976: 327

Tichosina Cooper, 1977:62

Timalina Batrukova, 1969:70

Timaniella Barchatova, 1968, in Markowskii, 1968 162

Timanospirifer Ljaschenko, 1973:92

Ttmorhynchia Ager, 1964:58

Timorina Stehli, 1961b:465

* Tingella Grabau, 1931a:407 [= Reticulariops s]

Tipispirifer Grant, 1976:213

Tiramnia Grunt, 1977a:64

(Tisimania) Hatai, 1938:97 [subgenus of Diestothyris]

Tissintia Havlíček, 1970b:14

Titanambonites Cooper, 1956c:717

Tilanaria Muir-Wood and Cooper, 1960:334

Thanomena Bergström, 1968:16

Tityrophoria Waterhouse, 1971, in Bamber and Waterhouse, 1971:214

Togaella Severgina, 1960, in Khalfin, 1960a:409

Tolmatchoffia Fredericks, 1933:29

Tomasina Hall and Clarke, 1892:65

Tomheganella Boucot, 1975 [nomen nudum]

Tomilia Sarytcheva, 1963, in Sarytcheva et al., 1963:220

†Tomiopsis Benediktova, 1956 [preoccupied by Tomiopsis Cope, 1893, mammal]

Tomiproductus Sarytcheva, 1963, in Sarytcheva et al 1963: 201

Tongzithyris Ching, Liao, and Fang, 1974:313

Toquimaella Johnson, 1967:876

Toquimia Ulrich and Cooper, 1936b:626

Tornquistia Paeckelmann, 1930:218 [replacement by Paeckelmannia invalid, Tornquistia noi preoccupied]

Torquirhynchia Childs, 1969:95

Torynechus Cooper and Grani, 1962:1128 [new name for Uncinuloides]

Torynelasma Cooper, 1956c:257

Torynifer Hall and Clarke, 1893, pl. 84

Toryniferella Weyer, 1967:435

Totia Rzonsnitzkaja and Mizens, 1977:92

Toxorthis Temple, 1968:20

Transennatia Waterhouse, 1975:10

Trasgu Martínez, 1979:251

Trautscholdia Ustritsky, 1967:37

Treioria Neuman and Bates, 1978:584

Trematis Sharpe, 1848:68

Trematobolos.— Easton, 1960 [misspelling of Trematobolus]

Trematobolus Matthew, 1893:276

Trematorthis Ulrich and Cooper, 1938:112

Trematosia Cooper, 1976:276

Trematospira Hall, 1859a:207

Tremorthis.—Ulrich and Cooper, 1938 [printer’s error for Trematorthis]

Trelorhynchia Brunton, 1971:98

Triadispira Dagys, 1961b:457

Triadithyris Dagys, 1963:187

Triathyris Comte, 1938:45

Trichochoneles Roberts, 1976:22

Trichorhynchia Buckman, 1914 [nomen nudum]; 1917:58

Trichothyris Buckman, 1915 [nomen nudum]; 1917:125

Tricoria Cooper and Grant, 1976a:1945

Tridensilis Su, 1976:193

Trifidarcula Elliott, 1959:147

Trtfidorostellum Sartenaer, 1961a:5

*Trigeria Bayle, 1878, pl. 13 [= Retzia]

†Trigonella Quenstedt, 1868 [replaced by Neotrigonella]

Trigonellina Buckman, 1907:342

Trigonirhynchella Dagys, 1963:41 [new name for Trigonirhynchia Dagys, 1961]

Trigonirhynchia Cooper, 1942:228 [new name for Uncinulina]

†Trigonirhynchia Dagys, 1961 [replaced by Trigonirhynchella]

Trigonithyris Muir-Wood, 1935:131

Trigonoglossa Dunbar and Condra, 1932:35

Trigonosernus Koenig, 1825:3

Trigonotreta Kocnig, 1825:3

(Trigonotrophia) Andreeva, 1972:54 [subgenus of Idiostrophia]

Trigorima Rafinesque, 1819; 1831 [nomina nuda]

Trigrammaria Wilson, 1945:140

Trimerella Billings, 1862:166 [replaccment by Gotlandia Dall, 1870, later withdrawn by Dall]

Trimurellina Mitchell, 1977:74

* Triplecella Wilson, 1932:400 [= Cydospira]

Triplecia.—Oehlert, 1887; Hall and Clarke, 1892 [incorrect emendation of Trzplesia]

Triplesia Hall, 1859b:44

Triseptalia Makridin, 1954 [nomen nudum]

Triseptata Bondarev, 1965, in Bondarev et al., 1965:34

Triseptothyris Xu, 1978b:314

Tritoechia Ulrich and Cooper, 1936b:625

Trochalocyrtina Wright, 1975:175

Trochifera Ching and Ye, 1979, in Ye and Yang, 1979:68

Trondorthis Neuman, 1974, in Neuman and Bruton, 1974: 77

Tropeothyris Smirnova, 1972:69

Trophisina Cooper and Grant, 1976a:2078

Tropidelasma Cooper and Grant, 1969:3

Tropidoglossa Rowell, 1966:31

Tropidoleptus Hall, 1857:151

Tropi dothyris Cooper, 1956c:507

*Tropiorhynchia Buckman, 1914 [nomen nudum]; 1917:33 [= harorhynchia]

Trotlandella Neuman, 1974, in Neuman and Bruton, 1974: 95

Trucizetina Havlíček, 1974:169

Truncalosia Imbrie, 1959:401

Trunculites Rafinesque, 1831 [nomen nudum]

Tschatkalia Nikiforova, 1964:85

Tschernyschewia Stoyanow, 1910:855

†Tschernyschewiella Fredericks, 1924 [replaced by Kochiproductus]

Tubaria Muir-Wood and Cooper, 1960:236

Tubegatanella Prosorovskaja, 1968:244

Tubersulculus Waterhouse, 1971, in Bamber and Waterhouse, 1971:208

Tubithyris Buckman, 1915 [nomen nudum]; 1917:115

Tubulostrophia Havlíček, 1967a:139

Tudiaophomena Xian, 1978a:266

Tufoleptina Havlíček, 19616:447

Tulathyris Grunt, 1976:78

Tulcumbella Campbell and Engel, 1963:68

Tulituna Smirnova, 1962:102

Tulungospirifer Ching and Sun, 1976, in Ching et al., 1976: 316

Tumarinia Solomina and Grigorjewa, 1973, in Grigorjewa and Solomina, 1973:35

†Tunaria Hoek, 1912 [replaced by Tunantes]

*Tunantes Cooper and Muir-Wood, 1951:196 [new name for Tunaria; = Bistramia]

(Tungussoloechia) Lopushinskaja, 1976:60 [subgenus of Stegerhynchus]

Tunisiglossa Massa, Havlíček, and Bonnefous, 1977:13

Turkmenithyris Prosorovskaja, 1962:109

Turriculum Gregorio, 1930a:26

Tuvaella Tschernyschew, 1937:11

Twenhofelia Boucot and Smith, 1978:272

Tyersella Philip, 1962:197

Tyloplecta Muir-Wood and Cooper, 1960:291

Tylospiriferina Xu, 19786:297

Tylothyris North, 1920:197

**Tylotoma Grabau, 1934 [= Spiriferellina]

Tyrganiella Kulkov, 1970, in Alekseeva et al., 1970:167

Tyronella Mitchell, 1977:64

*Tyrothyris Ópik, 1953:15 [=Mezfodial

‡Tythothryis Zezina, 1979:224

Uchtella Ljaschenko, 1973:50

*Uchtospirifer Ljaschenko, 1957:885 [= Cyrtiopsis]

Ujandinella Baranov, 1977:75

Ukoa Ópik, 1932:33

Ulbospirifer Gretchischnikova, 1965:33

Uldziathyris Grunt, 19776:82

Umboanctus Waterhouse, 1971, in Bamber and Waterhouse, 1971:212

Uncinella Waagen, 1883:494

†Uncinulina Bayle, 1878 [replaced by Trigonirhynchia Cooper, 1942]

†Uncinuloides King, 1931 [replaced by Torynechus]

Uncinulus Bayle, 1878, pl. 11

Uncinunellina Graban, 1932:100

Uncisteges Jing and Hu, 1978:117

Uncites Defrance, 1825, in Blainville, 1825:630

Undaria Muir-VVood and Cooper, 1960:318

(Undatrypa) Copper, 1978:302 [subgenus of Punctatrypa]

Undellaria Cooper and Grant, 1975:1158

Undiferina Cooper, 1956c:262

Undispirifer Havlíček, 19576:439

Undispiriferoides Xian, 1978a:330

Undithyrella Havlíček, 1971c:78

Undutella Cooper and Grant, 1969:5

*Ungula Pander, 1830:59 [= Obolus]

Ungulites.—Bronn, 1848 [misspelling of Ungula]

Unispirifer Campbell, 1957:67

Uralella Makridin, 1960, in Licharew et al., 1960:295

†Uralia Licharew, 1925 [replaced by Uralina]

*Uralina Schuchert and LeVene, 1929:122 [new name for Uralia; = Eolyttonia]

$Uraloproductus Ustritsky, 1971:21

Uralorhynchia Dagys, 1968:54

Uralospira Mizens, 1977a:82

Uralospirifer Havlíček, 1959a:246

Uralotoechia Sapelnikov, 1963:17

Urbanirhynchia Katz, 1974:252

Urbimena Havlíček, 1976:367

Urella Rzonsnitzkaja, 1960, in Markowskii, 1960:403

**Urticites Defrance, 1828 [= Hysterolites]

Urushienia Licharew, 1935:370

Urushtenoidea Jing and Hu, 1978:116

Ushkolia Martynova and Sverbilova, 1969:96

** Ussovia Khalfin, 1955 [= Wilsoniella]

Ussuricamara Koczyrkevicz, 1969:11

Ussurirhynchia Koczyrkevicz, 1976a:80

Vaga Sapelnikov and Rukavischnikova, 1973:33

(Vagranella) Sapelnikov, 1960b:116 [subgenus of Subriana]

Vagrania Alekseeva, 1959:389

Valcourea Raymond, 1911:240

Valdaria Bassett and Cocks, 1974:18

Valdiviathyris Helmcke, 1940:237

Vallomyonia Johnson, 1966a:158

Vandercammentna Boucot, 3975:363

*Vandergrachtella Crickmay, 1953a:7 [= Theodossia]

Vandobiella Pojariskaja, 1966:22

Vanzella Kvakhadze, 1974:493

(Variatrypa) Copper, 1966b:12 [subgenus of Desquamatia]

Vectella Owen, 1965:51

Vediproductus Sarytcheva, 1965, in Ruzhentsev and Sarytcheva, 1965:219

Veghtrhynchia Dagys, 1974:84

Velciella Havlíček and Snajdr, 1952 [nomen nudum]

Veirsemum Popov, 1976, in Nazarov and Popov, 1976:38

Veliamo Öpik, 1930:212

Velostrophia Havlíček, 1965b:7

Venezuelza Weisbord, 1926:22

Verchojanza Abramov, 1970:112

*Verkhotomia Sokolskaja, 1963, in Sarytcheva et al., 1963: 280 [= Pseudosyrinx]

Vermiculothecidea Elliott, 1953:694

Verneuilia Hall and Clarke, 1893:57

Vex Hoover, 1979:9

Viallithyris Vörös, 1978:62

Viarhynchia Calzada Badía 1974b:170

Victorityris Allan, 1940:289

Viligella Dagys, 1965:116

Viligothyris Dagys, 1968:89

Villicundella Levy and Nullo, 1974a:178

*(Vincia) Gregorio, 1930a:31 [subgenus of Lyttonia; = Leptodus]

Virbium Gregorio, 1930a:25

Virgiana TWenhofel, 1914:27

Virgianella Nikiforova and Sapelnikov, 1971:49

Virginiata Amsden, 1968:56

Drgoria Neuman, 1977:23

(Virusella) Rōōmusoks, 1959:14 [subgenus of Sowerbyella]

Visbyella Walmsley, Boucot, Harper, and Savage, 1968: 306

Vitiliproductus Ching and Liao, 1974:278

†Vitulina Hall, 1860 [nomen nudum]; 1867 [replacement by Pustulina invalid, Pustulina preoccupied, replaced by Pustulatia]

*Vltavothyris Havlíček, 1956:621 [= Meganteris]

Voiseyella Roberts, 1964:187

Volborthia Möller, 1870:409

Volzrhynchia Dagys, 1974:104

Vosmiverstum Breivel and Breivel, 1970a:54

Waagenia Hall, 1889 [nomen nudum = Polytoechia]

Waagenites Paeckelmann, 1930:223

Waagenoconcha Chao, 1927:85

*Waagenopora Noetling, 1902 [invalid new name for Oldhamina]

Waconella Owen, 1970:74

Wazparia Thomson, 1920:380

Wairakiella Waterhouse, 1967a:87

Waistudzyrma Beets, 1943:342

Walcoltma Cobbold, 1921:336

†Waldheimia King, 1850 [replaced by Magellania]

**Waldheimiathyris Helmcke. 1939 [invalid new name for Macandrevia, Macandrevia not preoccupied]

Walkeria Haas, 1890 [nomen nuduml

Walkerithyris Cox and Middlemiss, 1978:424

Wallortia Davidson, 1850a:475

Wardakia Termier, Termier, Lapparent, and Marin, 1974: 94

Warrenella Crickmay, 1953b:596

Warsawia Carter, 1974:684

Wattonithyris Muir-Wood, 1936a:91

Wansella Bancroft, 1928b:55 [= Dalmanella]

Weberrthyris Smirnova, 1969b:144

Weintrigia Ching and Liao, 1974:282

Weldonithyris Muir-Wood, 1952:130

Welerella Dunbar and Condra, 1932:287

Welleria Maillieux, 1931 [invalid new name for Delthyris in sensu Welter, 1914 (not Delthyris Dalman, 1828), Welleria preoccupied and nomen nudum; = Tylothyris]

†Welleria Rotai, 1938 [nomen nudum], 1941 [replaced by Rotaia]

Werneckeella Lenz, 1971:844

*Werriea Campbell, 1957:44 [= Orthotetes]

Westonia Walcott, 1901:683

Westralicrania Cockbain, 1967:119

Whidbornella Reed, 1943:71

Whitfieldella Hall and Clarke, 1893:58

*Whitfieldia Davidson, 1882:107 [= Meristina]

Whitspakia Stehli, 1964:610 [new name for Pakistania]

Whittardia Williams, 1974:62

Wilberrya Yancey, 1978:301

†Wilsonella Nikiforova, 1937 invalid new name for Wilsonia, Wilsonella preoccupied; replaced by Sphaerirhynchia]

†Wilsonia Kayser, 1871 [replacement by Wilsonella invalid, Wilsonella preoccupied; replaced by Sphaerirhynchia]

Wilsoniella Khalfin, 1939:83

Wimanella Walcott, 1908:99

*Winterfeldia Spriestersbach, 1942:198 [= Uncites]

Wittenburgella Dagys, 1959a:30

Worobievella Dagys, 1959a:33

†Worthenella Girty, 1938 [replaced by Labriproductus]

Wyatkina Fredericks, 1931:211

Wyella Khodalevich, 1939:21

Wyndhamia Booker, 1930:25

Wynnia Walcott, 1908 [nomen nudum]; 1912:771

Wysogorskiella Hints, 1975:61

X, Pajaud, 1966 [un-named; = Konstantia]

Xana Garcia-Alcalde, 1972a:5

Xenarnborates Cooper, 1956c:814

Xenelasrna Ulrich and Cooper, 19366:631

Xenelasmella Rozman, 1964, in Chugaeva et al., 1964:137

Xenelasmopsis Rozman, 1969 [nomen nudum]

Xenizostrophia Su, 1976:181

Xenomartinia Havlíček, 1953:6

Xenorthis Ulrich and Cooper, 1936b:620

Xenosaria Cooper and Grani, 1976a:2171

Xenospirz[er Hou and Xian, 1975:69

Xenosteges Muir-Wood and Cooper, 1960:111

Xenosirophia Wang, 1974, in Wang et al., 1974:38

Xenodzyris Ching, Rong, and Sun, 1976, in Ching et al., 1976:337

Xerospirifer Havlíček, 1978:103

Xerxespirifer Cocks, 19796:40

Xestosia Cooper and Grani, 1975:1063

Xestotrema Cooper and Grant, 1969:16

Xiangzhounia Ni and Yang, 1977:464

Xinanorthis Xu, Rong, and Liu, 1974:145

Xinanospirifer Rong, Xu, and Yang, 1974:206

Xinshaoella Zhao, 1977:391

Xizangostrophia Rong, 1976, in Liu, 1976:150

Xystostrophia Havlíček, 1965a:292

Yabezthyris Hatai, 1948:498

Yagonia Roberts, 1976, in Roberts et al., 1976:210

Yakovlevia Fredericks, 1925:7

Yakutimella Baranov, 1977:77

Yanbianella Tong, 1978:239

Yangkongia Xu and Liu, 1979 [nomen nudum]

Yangtzeella Kolarova, 1925:219

Yanguania Yang, 1977:346; 1978a:107; 19786:249

Yarrishewskiella Licharew, 1957:138

Yanospzra Dagys, 1977a:11

Yarirhynchia Ching and Sun, 1979 [nomen nudum]

*Yatsengina Semichatova, 1936:216 [= Choristiles]

* Yavorskiella Lazutkin, 1940 [nomen nudum; = Lazutkinia]

Yeosinella Recd, 1933:193

*Ygera Havlíček, 1961b:449 [= Plectodontella]

Ygerodiscus Havlíček, 1967a:62

Yidunella Ching, Sun, and Ye, 1979:148

Yingtangella Bai and Ying, 1977 [nomen nudum] 1978 in Yoh and Bai, 1978:54

Yingwuspirifer Rong, Xu, and Yang, 1974:201

Yochelsonia Stehli, 1961a:454

Yorkia Walcott, 1897:714

Ypsilorhynchus Sartenaer, 1970:9

* Yrclospirifer Gatinaud, 1949:488 [= Cyrtospirifer]

Yuezhuella Ching and Ye, 1979, in Ye and Yang, 1979:69

Yunnanella Grabau, 1923:195

†Yunnanella Grabau, 1931 [replaced by Nayunnella]

**Yunnanellina Grabau, 1931 [= Yunnanella Grabau, 1923]

Zaissania Sokolskaja, 1968, in Sarytcheva, 1968:197

Zanclorhyrzcha Xu, 1979b:96

Zdanir Barrandc, 1881:171

Zdimirella Tcherkesova, 1973:32

Zeilleria Bayle, 1878, pl. 9

Zeillerina Kyansep, 1959:119

Zejszneria Siemiradzki, 1922:172

Zellania Muore, 1855:111

Zeravshanotoechia Rzonsnitzkaja, 1977:127

Zeuschneria Smirnova, 1975a:137

Zhidothyris Ching, Sun, and Ye, 1979:216

Zhonghuacoelia Chen, 1978:361

Zia Sutherland and Harlow, 1973:59

Ziganella Nalivkin, 1960, in Ivanova, 1960:280

*Zigania Nalivkin, 1937 [nomen nudum; = Dzieduszyckia]

Nalivkin, 1937 [nomen nudum]; 1947:98

Zittelina Rollier, 1919:368

Zlichopyramis Havlíček, 1975:233

Zlichorhynchus Havlíček, 1963a:403

Zonarites Rafinesque, 1831? [incertae sedis]

Zophostrophia Veevers, 1959:63

Zugmayerella Dagys, 1963:99

Zugmayeria Waagen, 1882:334 [originally spelled Zugmeyeria by Waagen, corrected to Zugmayeria]

Zygatrypa Copper, 1977:307

Zygospira Hall, 1862:155

Zygospiraella Nikiforova, 1961, in Nikiforova and Andreeva, 1961:237

Computerized List of Valid Genera and Subgenera

(Including subjective synonyms)

Genus/Subgenus Author Date
Superfamily Author Date

Type-Species Author Date
Range

Abrekia Dagys 1974
Rhynchonellacea Gray 1848

Abrekia sutcata Dagys 1974
Triassic

Abyssothyris Thomson 1927
Terebratulacea Gray 1840

Terebratuta wyvillei Davidson 1878
Tertiary-Recent

Acambona White 1865
Retziacea Waaqen 1883

Acambona prima White 1862
Mississippian

Acanthambonla Cooper 1956
Lingulacea menke 1828

Acanthambonia minutissima Cooper 1956
Ordovician

Acanthatia Muir-Wood&Cooper 1960
Productacea Gray 1840

Heteralosia nupera Stainbrook 1947
Devonian

Acanthocosta Roberts 1971
Productacea Gray 1849

Acanthocosta teicherti Roberts 1971
Mississippian

Acanthocrania Williams 1943
Craniacea Menke 1828

Crania spiculata Rowley 1908
Ordovician-Permian

Acanthoplecta Muir-Wood&Cooper 1960
Productacea Gray 1840

Producta mesoloba Philllps 1836
Mississiopian

Acanthoproductus Martynova 1970
Productacea Gray 1840

Acanthoproductus bogdanovi Martynova 1970
Devonian

Acanthorhynchia Buckman 1917
Rhynchonellacea Gray 1848

Acanthothyris panacanthina Buckman&Walker 1889
Jurassic

Acanthorthis Neuman 1977
Orthacea Woodward 1852

Acanthorthis terreneuvensis Neuman 1977
Ordovician

Acanthospirifer Menakova 1964
Spiriferacea King 1846

Acanthospirifer edelschteini Menakova 1964
Silurian

Acanthospirina Schuchert&LeVene 1929
Spiriferinacea Davidson 1884

Spirifera aciculifera Rowley 1893
Mississippian

Acanthothiris Orbigny 1850
Rhynchonellacea Gray 1848

Anomia spinosa Linne 1788
Jurassic

Acanthothyroosis Kamyschan 1973
Rhynchonetlacea Gray 1848

Rhynchonella crossi Walker 1869
Jurassic

Acculina Misius 1977
Plectambonitacea Jones 1928

Acculina acculina Misius 1977
Ordovician

Acidotocarena Liu 1979
Uncertain

Acidotocarena oxyria Liu 1979
Cambrian

Acolosia Cooper&Grant 1976
Rhynchonellacea Gray 1848

Acolosia qlabra Cooper&Grant 1976
Permian

Acosarina Cooper&Grant 1969
Enteletacea Waagen 1884

Acosarina dorsisulcata Cooper&Grant 1969
Permian

Acritosia Cooper&Grant 1969
Strophalosiacea Schuchert 1913

Acritosia magna Zooper&Grant 1969
Permian

Acrosaccus Willard 1928
Discinacea Gray 1840

Acrosaccus shuleri Willard 1928
Ordovician-Silurian

Acrospirifer Helmbrecht&Wedekind 1923
Spiriferacea King 1846

Spirifer primaevus Steiniger 1853
Devonian

Acrothele Linnarsson 1876
Acrotretacea Schuchert 1893

Acrothele coriacea Linnarsson 1876
Cambrian

Acrothyra Matthew 1901
Acrotretacea Schuchert 1893

Acrotreta proavia Matthew 1899
Cambrian

Acrothyris Hou 1963
Strinqocephalacea King 1850

Acrothyris kwanqsiensis Hou 1963
Devonian

Acrntreta Kutorga 1848
Acrotretacea Schuchert 1893

Acrotreta subconica Kutorga 1848
Cambrian-Ordovician

Acrotretella Ireland 1961
Acrotretacea Schuchert 1893

Acrotretella siturlana Ireland 1961
Siturian

Actinoconchus McCoy 1844
Athyridacea McCoy 1844

Spirifera otanosulcata PhiLlips 1836
Carboniferous

Actinomena Opik 1930
Strophomenacea Kinq 1846

Strophomena orta Opik 1930
Ordovician

Acuminothyris Roberts 1963
Spiriferacea King 1846

Acuminothyris triangularis Roberts 1963
Mississippian

Acutatheca Stainbrook 1945
Spiriferacea King 1946

Acutatheca Propria Stainbrook 1945
Devonian

Acutella Ljaschenko 1973
Spiriferacea Kinq 1846

Uchtospirifer angulosus Ljaschenko 1959
Devonian

Acutilineolus Amsden 1978
Cyrtiacea Fredericks 1924

Eospirifer acutolineatus Amsden 1968
Silurian

Adiaphragma Xian 1978
Plectambonitacea Jones 1928

Adiaphragma ganxiensis Jan 1978
Devonian

Adminiculoria Waterhouse&Gupta 1978
Delthyridacea Phillips 1841

Spirifer middlemissi Diener 1915
Mississippian

Admixtella Roznan 1978
Clitambonitacea Winchell&Schuchert 1893

Admixtella orientatis Pazcan 1978
Ordovician

Adotfia Gurich 1909
Spiriferacea King 1846

Spirifer deflexus Roemer 1843
Devonian

Adotfispirifer Krytova 1962
Spiriferacea Kinq 1846

Spirifer jeremejewi Tschernyschev 1887
Devonian

Adrenia Chatterton 1973
Stringocephatacea King 1850

Adrenia espansa Chatterton 1973
Devonian

Adriana Gregorio 1930
Lyttoniacea Waagen 1883

Adriana osiens s Gregorio 1930
Permian

Adygetta DagYs 1959
hielasmatacea Schuchert 1913

Adygelta cubanica Dagys 1959
Triassic

Adygeltoides Dagys 1959
Dielasmatacea Schuchert 1913

Adygettoides labensis Dagys 1959
Triassic

Aegiria Opik 1933
Ptectambonitacea Jones 1928

Aegiria norveqica Opik 1933
Siturian

Aegiromena Havticek 1961
Plectambonitacea Jones 1928

Leptaena aguita Barrande 1848
Ordovician

Aegironetes Havlicek 1967
Ptectambonitacea Jones 1928

Strophomena tristis Barrande 1879
Ordovician

Aemuta Steinich 1968
Terebratettacea King 1850

Aemuta inusitata Steinich 1968
Cretaceous

Aenigmastricklandia Ziegler 1966
Pentameracea McCoy 1844

Aenigmastricklandia contorta Ziegler 1966
Silurian

Aenigmastrophia Boucot 1971
Strophomenacea King 1446

Aenigmastrophia cooperi Boucot 1971
Silurian

Aenigmathyris Cooper 1971
Terebratulacea Gray 1840

Aenigmathyris stearnsi Cooper 1971
Tertiary

Aequspiriferina YanglYin 1962
Spiriferinacea havidson 1884

Aequspiriferina rlultipticata YanggYin 1962
Triassic

Aerothyris Allan 1939
Terebratellacea King 1850

Magellania macquariensis Thomson 1918
Recent

Aesopomum Havlicek 1965
Orthotetacea Waagen 1884

Strophomena aesopea Barrande 1879
Devonian

Aetheia Thomson 1915
Rhynchonettacea Gray 1848

Watdheimia sinuata Hutton 1873
Tertiary-Recent

Afghanospirifer Ptodowski 1968
Spiriferacea King 1846

Afghanosoirifer burqutschensis Ptodowski 1968
Permian

Afitasma Stehti 1961
Dietasmatacea Schuchert 1913

Afilasma beecheri Stehli 1961
Devonian

Agastapteura Ku 1978
Uncertain

Agastapteura aenina Su 1978
Ordovician

Agetesia Cooper&Grant 1969
Aulostegacea Muir-Wood&Cooper 1960

Aulosteges triagonatis King 1931
Permian

Agerinella Pajaud&Patrulius 1965
Thecideacea Gray 1840

Agerinella lyrata Pajaud&Patrutius 1965
Jurassic

Agramatia Sokolskaja 1948
Productacea Gray 1840

Productus agramati Nativkin 1934
Devonian

Aguthasia King 1871
Terebratutacea Gray 1840

Aguthasia davidsonii King 1871
Recent

Ahtietta Opik 1932
Ptectambonitacea Jones 1928

Ahtietla tirata Opik 1932
Ordovicman

Airtonia Cope 1934
Chonetacea Pronn 1862

Airtonia hudsoni Cope 1934
Mississippian

Aktassia Papos 1976
Acrotretacea Schuchert 1893

Aktassia triangutaris Popas 1976
Ordovician

Ata Nativkin 1979
Spiri feracea King 1846

Ata tau Nativkin 1979
MissIssippian

Ataskospira Kirkg&Amsden 1952
Cyrtiacea Fredericks 1924

Alaskosoira dunhari Kirk&Amsden 1952
Silurian

Alatiformia Struve 1963
Spiriferacea King 1846

SpIrifer atatiformis Drevermann 1907
Devonian

Atatoproductus Ching&zhu 1978
Strophatosiacea Schuchert 1913

Alatoproductus trunctus Ching&Zhu 1978
Permian

Aldanispirifer Alekseeva 1967
Spiriferacea King 1846

Aldanisoirifer hetenae Alekseeva 1967
Devonian

Atdanotreta Petman 1977
Paterinacea Schuchert 1893

Atdanotreta sunnaginensis Petman 1977
Cambrian

Atdingia Thomson 1916
Terebrateltacea King 1850

Terebratella furcutifera Tate 1880
Tertiary-Recent

Atexenia Ivanova 1935
Productacea Gray 1840

Alexenia reticutata Ivanova 1935
Pennsylvanian

Atichovia Gorjansky 1969
Siphonotretacea Kutorga 1848

Atichovla ramispinosa Gorjansky 1969
Ordovician

Aliconchidium St.Joseph 1942
Pentameracea McCoy 1844

Aliconchidium yassi St.Joseph 1942
Silurian

Alimbella Andreeva 1960
Porambonitacea Davidson 1853

Alimbella armata Andreeva 1960
Ordovician

Atipunctifera Waterhouse 1975
Spiriferinacea Davilson 1584

Spirlferina kaihikuana Trechmann 1918
Triassic

Alisina Rowell 1962
Obotellacea Walcott&Schuchert 1003

Obotella attantica Walcott 1890
Cambrian

Alispira Nikiforova 1961
Atrypacra Gill 1871

Zygospira gracilis Ntkiforova 1961
Si Curan

Alispirifer Campbell 1961
Spiriferacea King 1846

Alispirifer taminosus Campbett 1961
Pennsylvanian

Alitarla Cooper&Muir-Wood 1967
Allanella Crickmay 1953

Productus expansus Koninck 1842
Spirifer allani Warren 1944

Spiriferacea King 1846
Productacea Gray 1840

Devonian
Mississippian

Allanetes Poucot&Johnson 1967
Chonetacea Pronn 1862

Allanetes neozelanica Roucot&Johnson 1967
Devoran

Allorhynchoides Savage et al 1978
Rhynchonettacea Gray 1848

Allorhynchoides kirki Savage et al 1978
Devoran

Attorhynchus Welter 1910
Rhynchonellacea Gray 1848

Rhynchonella heteropsis Winchell 1865
Mississippian-Permian

Atmerarhynchia Calzada 1974
Rhynchonellacea Gray 1848

Atmerarhynchia virgitiana Calzada 1974
Cretaceous

Alphachoristites Satinad 1949
Spiriferacea King 1846

Choristites hisulcatlformis Semichatova 1941
Mississiopian-Permian

Alphacyrtiopsis Gatinaud 1949
Spiriferacea King 1846

Cyrtiopsis murchisoniana Grabau 1931
Devoran

Atphaneospirifer Gatinaud 1949
Spiriferacea King 1846

Spirifer mahaensis Huanl 1933
Pennsylvanian-Permian

Attaestrophia Bublichenko 1956
Strophomenacea King 1846

Leptodontetla acuta Khatfin 1948
Devonian

Allaethyrella Severgina 1978
Atrypacea SHA 1871

Allaethyrella negata Severgina 1978
Ordovician

Attajella Kulkov 1962
Spiriferacea King 1846

Attajella contorta Kulkov 1962
Devonian

Altiplecus Stehli 1954
Spiriferinacea Davidson 1884

Altiplecus cooperi Stehli 1954
Permian

Attorthis Andreeva 1961
Orthacea Woodward 1852

Attorthis kindertensis Andreeva 1960
Ordovician

Alwynetta Spjeldnaes 1957
Plectambonitacea Jones 1928

Alwynella ostoensis Spjeldnaes 1957
Drdovician

Alwynta Stehli 1961
Dietasmatacea Schuchert 1913

Dielasma vestculare Koninck 1887
Mississippian

Ambikella Sahnig&Srivastava 1956
Reticulariacea Waagen 1883

Ambikella fructiformis Sahnig&Srivastava 1956
Permian

Ambocoelia Hall 1860
Cyrtiacea Fredericks 1924

Orthis umbonata Conrad 1842
Devonian-Mississippian

Amboglossa Wangg&Zhu 1979
Cyrtiacea Fredericks 1924

Ambothyris transversa Wang et al 1974
Devonian

Ambonorthella Rassett 1972
Enteletacea waagen 1884

Ambonorthella hancocki Bassett 1972
Silurian

Ambothyris George 1931
Cyrtiacea Fredericks 1924

Spirifer infimus Whidoorne 1893
Devonian

Amesopleura Carter 1967
Spiriferacea King 1846

Spirifera novamexicana Miller 1881
Mississippian

Acetona CoopergGrant 1975
Productacea Gray 1840

Acetona residua CoopergGrant 1975
Permian

Amissopecten Havlicek 1960
Rhynchonellacea Gray 1848

Terebratula velox Barrande 1847
Devonian

Amoenospirifer Havlicek 1957
Spiriferacea King 1846

Spirifer thetidis Barrande 1848
Devonian

Amosina Boucot 1975
Chonetacea Pronn 1862

Chonetes fuertensis Kayser 1897
Silurian-Devonian

Amphiclina laube 1865
Koninckinacea navidson 1853

Producta dubia Munster 1841
Triassic

Amphiclinodonta Bittner 1888
Koninckinacea Davidson 1853

Amphiclinodonta liasina Bittner 1888
Triassic-Jurassic

Amphigenia Hall 1867
Stringocephalacea vino 1850

Pentamerus elongatus Vanuxem 1843
Devonlan

Amphipella Cooperg&Grant 1969
Rhynchonellacea Gray 1848

Amohipella arcana Cooper&Grant 1969
Permian

Amphistrophia Hall&Clarke 1892
Strophomenacea King 1846

Strophomena striata Hall 1843
Silurian

Amphistrophiella Harperg&Boucot 1978
Stropheodontacea Caster 1939

Orthis funiculata McCoy 1846
Silurian

Amphithyris Thomson 1918
Terebratellacea King 1850

Amphlthyris buckmani Thomson 1918
Recent

Amphitomella Bittner 1890
Athyridacea McCoy 1844

Terebratula hemisphaeroidica Klipstein 1843
Triassic

Amsdenella Tillman 1967
Rhynchonellacea Gray 1848

Rhynchonella abrupta Hall 1857
Devonian

Amsdenina Roucot 1975
Pentameracea mcCoy 1844

Sieberella roemeri Hall&Clarke 1892
Silurian

Amsdenostrophiella HaroergBoucot 1978
Stropheodontacea Caster 1939

Strophonella prolongata Foerste 1903
Silurian

Amurothyris Koczyrkevicz 1976
Dielasmatacea Schuchert 1913

Amurothyris costulata Koczyrkevicz 1976
Permian

Amygdalocosta Waterhouse 1967
Dielasmatacea Schuchert 1913

Amygdalocosta rara Waterhouse 1967
Permiani

Anabaia Clarke 1893
Payiacea Waaaen 1883

Anabaia paraia Clarke 1893
Silurian

Anabaria Lopushinskaja 1965
Atrypacea Gill 1871

Catazyga rara Nikiforova 1961
Silurian

Anabolotreta Rowell&Henderson 1978
Acrotretacea Schuchert 1893

Anaholotreta tegula Rowell&Henderson 1978
Cambrian

Anadyrella Daays 1974
Dielasmatacea Schuchert 1913

Anadyrella infrequens Dagys 1974
Triassic

Anarhynchla Ager 1964
Rhynchonellacea nray 1848

Anarhynchia qabbi Ager 1964
Jurassic

Anastrophia Hall 1867
Porambonitacea Davidson 1853

Pentamerus verneuili Hall 1857
Silurian-Devonian

Anathyrella Khalfin 1960
Athyridacea mcCoy 1844

Anathyris ussovi Knalfin 1933
Devonian

Anathyris Peetz 1901
Athyridacea McCoy 1944

Spirifera phalaena Phillios 1841
Devonian

Anatrypa Nalivkin 1041
Atrypacea Gill 1871

Orthis micans Buch 1840
Devonian

Anazyga Davidson 1882
Atrypacea Gill 1871

Atrypa recurvirostris Hall 1847
Ordovician

Anchigonites Opik 1939
Gonambonitacea Schuchert&Cooper 1931

Anchigonites conulus Opik 1939
Ordovician

Ancillotoechia Havlicek 1959
Rhynchonellacea Gray 1848

Riynchonella ancillans Harrande 1879
Silurian

Ancistrocrania Dall 1877
Craniacea Menke 1878

Crania parisiensis Defrance 1819
Cretaceous&Recent

Ancistrorhyncha Ulrich&Cooper 1942
Rhynchonellacea Gray 1848

Ancistrorhyncha costata Ulrich&Cooper 1942
Orlovician

Ancorhynchia Ching&Ye 1979
Rhynchonellacea Gray 1848

Ancorhynthia madoensis Ching&Ye 1979
Permlan

Ancylostrophla Harper et al 1967
Strophomenacea King 1846

Ancylostrophia kondelensis Harper et al 1967
Devonian

Andobolus Kozlowski 1939
Lingulacea Menke 1878

Andobolus jackowskii Kozlowski 1930
Ordovician

Aneboconcha Cooper 1973
Terebratellacea Kina 1850

Aneboconcha obscura Cooper 1973
Recent

Anechophragma Neuman 1977
Plectambonitacea Jones 1928

Anechophragma rarun Neuman 1977
Ordovician

Anemonaria Cooper&Grant 1969
Productacea Gray 1840

Anemonaria inflata CoopertGrant 1969
Permiani

Aneuthelasma Cooper&Grant 1976
Dielasmatacea Schuchert 1913

Aneuthelasma amygdalinum Cooper&Grant 1976
Permian

Angarella Asatkin 1932
Craniacea Henke 1828

Angarella jaworowskii Asatkin 1932
Ordovician

Angulotreta Palmer 1954
Acrotretacea Schuchert 1893

Angulotreta triangularis Palmer 1954
Cambrian

Angusticardinia Schuchert&Cooper 1931
Enteletacea Waagen 1386

Porambonites recta Pander 1830
Ordovician

Angustothyris Dagys 1972
Terebratellacea King 1850

Waldheimia anguStaeformis Sockh 1872
Triassic

Anidanthus Hill 1950
Productacea Gray 1840

Linoproductus sprIngsurensis Booker 1932
Pennsyvanian-Permian

Anisactinella Bittner 1890
Athyridacea McCoy 1944

Terehratula quadriplecta Munster 1841
Triassic

Anisooleurella Cooper 1956
Plectambonitacea Jones 1928

Anisopleurella tricostellata Cooper 1956
Ordovician

Anomactinella Bittner 1890
Athyridacea McCoy 1844

Terebratuta flexuosa Munster 1841
Triassic

Anomalesia Cooper&Grant 1976
Cryptonellacea Thomson 1926

Anomalesia perplexa Cooper&Grant 1976
Permian

Anomaloglossa Percival 1978
Linqulacea “enke 1828

Anomaloglossa porca Percival 1978
Ordovician

Anomaloria Cooper&Grant 1969
Reticulariacea Waagen 1884

Anomaloria anomala Cooper&Grant 1969
Permian

Anomalorthis Ulrich&Cooper 1936
Gonambonitacea Schuchert&Cooper 1931

Anomalorthis utahensis Ulrich&Cooper 1936
Ordovician

Anoplia Hall&Clarke 1892
Chonetacea Pronn 1862

Leptaena nucleata Hall 1857
Devonian

Anopliopsis Girty 1938
Chonetacea Bronn 1862

Chonetina suhcarinata Girty 1926
Mississiopian

Anoplotheca Sandberger 1855
Dayiacea Waagen 1853

Terehratula venusta Schnur 1853
Devonian

Anoptambonites Williams 1962
Plectambonitacea Jones 1928

Leptaena grayae Davidson 1883
Ordovician

Ansehia Termier&Termier 1970
Strophalosiacea Schuchert 1913

Ansehia thecideiformis Termierl&Termier 1970
Permian

Antelocoelia Isaacson 1977
Dayiacea Waagen 1883

Antelocoelia johnson Isaacson 1977
Devonian

Anteridocus Cooper&Grant 1976
Rhynchonellacea Gray 1848

Anteridocus gongylus Cooper&Grant 1976
Permian

Anthracospirifer Lane 1963
Spiriferacea King 1846

Anthracospirifer hirdspringensis Lane 1963
Pennsylvanian

Antigaleatella Saoelnikov et al 1975
Pentameracea McCoy 1844

Antigaleatella laevis Sapelnikov et al 1975
Ordovician

Antigonambonites Opik 1934
Gonambonitacea Schuchert&CDoper 1931

Gonambonites plana Pander 1830
Ordovician

Antigoniarcula Elliott 1959
Terebratellacea King 1853

Argiope perrieri Deslongchamps 1853
Jurassic

Antinomia Catullo 1851
Terebratulacea Gray 1840

Antinomia dilatata Catulla 1851
Jurassic-Cretaceous

Antiptychina Zittel 1880
Zeillerlacea Allan 1940

Terebratula hivallata Deslongchamps 1859
Jurassic

Antiouatonia Miloradovich 1945
Productacea Gray 1840

Productus antiguatus Sowerby 1821
Mississipoian&Permian

Antirhynchonella Oehlert 1887
Pentameracea McCoy 1844

Atrypa linguifera Sowerby 1839
Silurian

Antisoirifer Williams 1916
Spiriferacea King 1846

Antispirifer harroldi Williams 1916
Devonian

Antistrix Johnson 1972
Rhynchonellacea Gray 1848

Antistrix invicta Johnson 1972
Devonian

Antronaria Cooper&Grant 1976
Rhynchonellacea Gray 1848

Antronaria speciosa Cooper&Grant 1976
Permian

Apatomorpha Cooper 1956
Plectambonitacea Jones 1928

Rafinesguina pulchella Raymond 1928
Ordovician

Apatorthis Opik 1933
Enteletacea Waacien 1984

Apatorthis punctata Opik 1933
Ordovician

Aperispirifer Waterhouse 1968
Spiriferacea King 1846

Neospirifer wairakiensis Waterhouse 1964
Permian

Aphanomena Pergstrom 1068
Strophomenacea King 1846

Aphanomena schmalenseei Bergstrom 1968
Ordovician

Aphaurosia Cooper&Grant 1976
Rhynchonellacea Grey 1848

Aphaurosia scutata CooperlGrant 1976
Permian

Aphelesia Cooper 1959
Rhynchonellacea Grey 1848

Anomia bipartita Rrocchi 1814
Tertiary

Apheoorthina Havlicek 1949
Orthacea Woodward 1852

Apheoorthina ferrigena Havticek 1949
Ordovician

Apheoorthis Otrich&Cooper 1936
Orthacea Woodward 1852

Foorthis lineocosta Walcott 1924
Cambrian-Ordovician

Apicilirella Su 1976
Davidsoniacea King 1850

Apicilirelta vulgaris Su 1976
Devonian

Apollonorthis Mitchell 1974
Orthacea Woodward 1852

Apollonorthis lusitanica Mitchell 1974
Ordovician

Apomatella Schuchert&Cooper 1931
Clitambonitacea Winchell&Schuchert 1893

Orthisina ingrica Pahlen 1877
Ordovician

Apopentamerus Boucot&Johnson 1979
Pentameracea McCoy 1844

Apopentamerus racinensis Roucot&Johnson 1979
Silurian

Aporthophyta Ulrich&Cooper 1936
Plectambonitacea Jones 1928

Aporthophyta typa Utrich&Cooper 1936
Ordovician

Aporthophylina Liu 1976
Ptectambonitacea Jones 1928

Aporthophylina intermedia Liu 1976
Ordovician

Apousiella Carter 1972
Spiriferacea King 1846

Spirifer bouchardi Murchison 1840
Devonian

Apringia Gregorio 1886
Rhynchonetlacea Gray 1848

Rhynchonella giuppa Gregorio 1886
Jurassic

Apsitingula Williams 1977
Lingulacea Menke 1828

Apsilingula parkesensis Williams 1977
Devonian

Apsocatymma McIntosh 1974
Davidsoniacea King 1850

Apsocalymma shiettsi McIntosh 1974
Carboniferous

Apsotreta Palmer 1954
Acrotretacea Schuchert 1893

Apsotreta expansa Palmer 1954
Cambrian

Araratella Sartenaer&Plodowski 1975
Rhynchonellacea Grey 1848

Liorhynchus dichotomianus Abramian 1954
Devonian

Aratanea Schmidt 1967
Rhynchonellacea Gray 1848

Aratanea monodi Schmidt 1967
Silurian

Araxathyris Grunt 1965
Sthyridacea McCoy 1844

Spingere protea Abich 1878
Permian

Araxitevis Sarytcheva 1965
Productacea Gray 1840

Productus intermedius Abich 1878
Permian

Arbizustrophia Garcia-Alcalde 1972
Strophendontacea Caster 1939

Arbizustrophia diaphragrata Garcia-Alcalde 1972
Devonian

Arcellnithyris Almeras 1971
Terebratulacea Gray 1840

Terehratula arcelini Lissajous 1936
Jurassic

Arceythyris Rottet 1964
Terebratutacea Gray 1840

Terebratula diptycha Orapet 1857
Jorassic

Archaeorthis Schucher&Cooper 1931
Orthacea Woodward 1852

Orthis electra Bittings 1865
Ordovician

Arcosarina Ching, Song&Ye 1979
Dielasmatacea Schuchert 1913

Arcosarina foliacea Ching, Son&Ye 1979
Triassic

Arctitreta Whitfietd 1908
Uncertain

Arctitreta pearyi Whitfietd 1908
Pennsylvanian

Arctochonetes Ifanova 1968
Chonetacea Bronn 1862

Chonetina postartlensis Ustritsky 1960
Permian

Arctohedra Cooper 1936
Orthacea Woodward 1852

Arctohedra minima Cooper 1936
Cambrian

Arctomeristina Amsden 1978
Athyridacea McCoy 1844

Arctomeristina compressa Amsden 1978
Silurian

Arctospirifer Stainbrook 1950
Spiriferacea King 1846

Arctosplrifer constrictus Stainbrook 1950
Devonian-Mississippian

Arctothyris nagys 1965
Dielasmatacea Schuchert 1913

Arctothyris solitus Dagys 1965
Triassic

Arcualla Watmsley&Boucot 1975
Enteletacea Waagen 1884

Orthis arcuaria Hall&Clarke 1892
Silurian-Devonian

Arcuatothyris Popiel-Barczyk 1972
Terebratutacea Gray 1840

Terebratula arcuata Roemer 1841
Cretaceous

Arduspirifer Mittmeyer 1972
Spiriferacea King 1846

Spirifer arduennensis Schnur 1853
Devonian

Arenaciarcota Ettiott 1959
Terebratellacea King 1850

Terebratetta fittoni Meyer 1864
Cretaceous

Arenorthis Havlicek 1970
Entetetacea Waagen 1884

Arenorthis arenaria Havlicek 1970
Ordowician

Areostrophia Havlicek 1965
Orthotetacea Waagen 1884

Orthis distorta Barrande 1879
Silurian-Devonian

Argentiproductus Cooper&Muir-Wood 1951
Prodoctacea Gray 1840

Producta margaritacea Phillips 1836
Mississippian

Argovithyris Rollet 1972
Terebratulacea Gray 1840

Terehratula birmensdorfensis Moesch 1867
Jurassic

Argyrotheca Dall 1900
Terebratellacea King 1850

Terebratuta cuneata Risso 1826
Recent

Arionthia Cooper&Grant 1976
Spiriferinacea havidson 1884

Arionthia blothrhachis Cooper&Grant 1976
Permian

Arktikina Grunt 1977
Reticutariacea Waagen 1883

Arktikina longa Grunt 1977
Carboniferous

Aromasithyris Almeras 1971
Terebratutacea Gray 1840

Terebratula balinensis Szajnocha 1879
Jurassic

Artimyctelta Liu 1979
Uncertain

Artimyctella yichandensis Liu 1979
Cambrian

Artiotreta Ireland 1961
Acrotretacea Schuchert 1893

Artiotreta parva Ireland 1961
Silurian

Aseptatium Hou&Xian 1975
Rhynchoneltacea Gray 1848

Uncinulus guangxiense Wang 1965
Devonian

Aseptella Martine&Winkler 1977
Productacea Gray 1840

Aseptetla asturica Martinez&Winkler 1977
Mississippian

Aseptonetes Isaacson 1977
Chonetacea Bronn 1862

Aseptonetes boucoti Isaacson 1977
Devonian

Asperlinus Waterhouse&Piyasin 1970
Productacea Gray 1840

Productus asperulus Waagen 1884
Permian

Aspidothyris Diener 1908
Dielasmatacea Schuchert 1913

Aspidothyris kraffti Diener 1908
Triassic

Astegosia Cooper&Grant 1969
Reticutariacea waagen 1883

Squamularia guadatupensis Girty 1909
Permian

Astraborthis Williams 1974
Orthacea Woodward 1852

Astraborthis unipticata Williams 1974
Ordovician

Astutorhyncha Havlicek 1961
Rhynchonellacea Grav 1848

Rhynchonetta proserpina Garrande 1847
Silurian-Devonian

Asymphytotoechia Ross 1970
Clitambonitacea Winchell&Schuchert 1893

Asymphylotoechia nolani Ross 1970
Ordovician

Asyrinx Hudson&Sudbury 1959
Spiriferacea King 1846

Asyrinx haushiensis Hudson&Sudbury 1959
Permian

Asyrinxia Campbell 1957
Spiriferacea King 1846

Spirifera lata McCoy 1847
Mississippian

Atelelasma Cooper 1956
Ctitambonitacea Winchett&Schuchert 1893

Ateletasma perfectum Cooper 1956
Ordovician

Atetestegastus Cooper&Grant 1975
Aulostegacea Muir-Wood&Cooper 1960

Atetestegastus marginatus Cooper&Grant 1975
Permian

Atelithyris Smirnova 1975
Terebratulacea Gray 1840

Atetithyris crestensis Smirnova 1975
Cretaceous

Athabaschia Crickmay 1963
Rhynchonellacea Gray 1848

Athabaschia asmenista Crickmay 1963
Devonian

Athyrhynchus Johnson 1973
Rhynchonellacea Gray 1848

Athyrhynchus susanae Johnson 1973
Devonian

Athyris McCoy 1144
Athyridacea McCoy 1144

Terebratuta concentrica Ruch 1834
Devonian

Athyrisina Hayasaka 1922
Athyrisinacea Grabau 1931

Athyrisina squamosa Hayasaka 1922
Devonian

Athyrisinoides Jiang 1978
Athyrisinacea Grabau 1931

Athyrisinoides shigianensis Jiang 1978
Silurian

Atlantida Havticek 1971
Orthacea Woodward 1852

Atlantida atlantis Havticek 1971
Ordovician

Atribonium Grant 1965
Stenoscismatacea Oehtert 1887

Atribonium sima tum Grant 1965
Devonian-Mississippian

Atrypa Datman 1828
Atrypacea Gitt 1871

Anomia reticularis Linne 1758
Silurian-Devonian

Atryparia Copper 1966
Atrypacea Gill 1871

Atryparia instita Copper 1966
Devonian

Atrypella Kozlowski 1929
Atrypacea Gill 1871

Atrypa prunum palman 1828
Silurian-Devonian

Atrypina Hall&Clarke 1893
Atrypacea Gill 1871

Leptocoelia imbricata Hall 1857
Silurian-Devonian

Atrypinella Khodalevich 1939
Atrypacea Gill 1371

Atrypinella biloba Khodalevich 1939
Silurian-Devonian

Atrypoidea Mitchell&Dun 1923
Atrypacea Gill 1871

Meristina australis Sun 1904
Silurian

Atrypopsis Poulsen 1943
Atrypacea Gill 1871

Atrypopsis varians Poulsen 1943
Silurian

Atrythyris Steuve 1965
Athyridacea McCoy 1844

Atrythyris atryplicata Struve 1965
Devonian

Attenuatella Stehli 1954
Cyrtiacea Fredericks 1924

Attenuatella texana Srehli 1954
Permian

Auchmerella Struve 1964
Davidsoniacea King 1850

Auchmerella irmingina Struve 1964
Devonian

Aulacella Schuchert&Cooper 1931
Enteletacea Haagen 1884

Orthis eifelensis Schnur 1853
Devonian

Aulacophoria Schuchert&Cooper 1931
Enteletacea Waagen 1884

Orthis keyserlingiana Koninck 1543
Mississlopian

Aulacorhyna Strand 1923
Eichwaldiacea Schuchert 1893

Aulacorhynchus pachtl Dittmar 1872
Carboniferous-Permian

Aulacothyris Douville 1879
Zeilleriacea Allan 1940

Terebratula resupinata Sowerby 1816
Triassic-Jurassic

Aulacothyroides Dagys 1965
Zeilleriacea Allan 1940

Aulacothyroides bulkutensis Dagys 1965
Triassic

Aulacothyropsis nagys 1959
Terebratellacea King 1850

Waldheimia reflexa Rittner 1890
Triassic

Aulidpspira Williams 1962
Dayiacea Waaarn 1888

Aulidospira trippi Williams 1962
Ordovician

Aulonotreta Kutorga 1848
Lingulacea Menke 1828

Aulonotreta sculpta Kutorga 1848
Ordovician

Auloprotonia Muir-Wood&Cooper 1960
Productacea Gray 1840

Auloprotonia aulacophora Moir-WoodkCooper 1960
Mississippian

Aulosteges Helmersen 1847
Strophalosiacea Schuchert 1913

Aulosteges variabilis Helmersen 1847
Permian

Auriculispina Waterhouse 1975
Productacea Gray 1840

Cancrinella levis Maxwell 1964
Permian

Austinella Foerste 1909
Orthacea Woodward 1852

Orthis kankakensis McChesney 1861
Ordovician

Australlarcula Elliott 1960
Terehratellacea King 1850

Australlarcula artesiana Elliott 1960
Cretaceous

Australina Clarke 1912
Atrypacea Gill 1871

Australina jachalensis Clarke 1912
Silurian

Australocoelia Roucot&Gill 1956
Dayiacea Waagen 1883

Australocoelia tourteloti Boucot&Gill 1956
Devonian

Australosia McKellar 1970
Strophalosiacea Schuchert 1913

Australosia starensis McKellar 1970
Devonian

Australosoirifer Caster 1939
Spiriferacea King 1846

Spirifer keyserianus Clarke 1913
Devonian

Australostrophia Caster 1939
Uncertain

Leptostrophia mesembria Clarke 1913
Devonian

AuStriellula Strand 1928
Rhynchonellacea Gray 1848

Rhynchonella dilatata Suess 1855
Triassic

Austrirhynchia Ager 1959
Rhynchonellacea Gray 1848

Terebratula cornigera Schafhautl 1851
Triassic

Austrochoristites Roberts 1971
Spiriferacea King 1946

Austrochorlstites levisulcatus Roberts 1971
Mississipian

Austronoplia Isaacson 1977
Chonetacea Prono 1862

Chonetes stuebell Ulrich 1892
Devonian

Austrospirifer Glenister 1956
Spiriferacea King 1846

Austrospirifer variabilis Glenister 1956
Devonian

Austrothyris Allan 1939
Terebratellacea King 1850

Waldheimia qambierensis Etheridoe 1876
Tertiary

Avisyrinx Martinez 1975
Spiriferacea King 1846

Avisyrinx obsoleta Martinez 1975
Carboniferous

Avonia Thomas 1914
Produrtacea Gray 1840

Productus youngianus Cavidson 1861
Carboniferous

Avonothyris Puckman 1917
Terebratulacea Gray 1840

Avonothyris plicatina Buckman 1917
Jurassic

Axiodeaneia Clark 1917
Rhynchonellacea Gray 1848

Axiodeaneia platypleura Clark 1917
Mississippian

Babukella Dagys 1974
Dallinacea Reecher 1993

Habukella loculus Dagys 1974
Triassic

Rackhausina Pujad 1966
Thecideacea Gray 1849

ThecIdea rugosa Orbigny 1847
Cretaceous

Bactrynium Emmrich 1955
Lyttoniacea Waagen 1983

Bactrynium bicarinatum Emmrich 1855
Triassic

Bagnorthis Levy&Nullo 1974
Enteletacea Waagen 1884

Oagnorthis garrigoui Levy&Nullo 1974
Ordovician

Ragrasia Nalivkin 1960
Productacea Gray 1843

Productus chonetiformis Krestovnikov et al 1948
Devonian-Carboniferous

Baitliena Nelsong&Johnson 1968
Productacea Gray 1840

Baitliena yukonensis Nelson&Johnson 1968
Pennsylvanian-Permian

Bajanhongorella Rozman 1977
Davidsoniacea King 1950

Bajanhongorella bajanhongorica Rozman 1977
Ordovician

Bajanorthis Andreeva 1968
Orthacea Woodward 1852

Bajanorthis tukolandica Andreeva 1968
Cambrian

Bajkuria Ustritsky 1963
Reticulariacea Waagen 1883

Rajkuria dorsosinuata Ustritsky 1963
Permian

Ralakhonia Sarytcheva 1963
Productacea Gray 1840

Ralakhonia ostroqensis Sarytcheva 1963
Carboniferous

Balanoconcha Camptell 1957
Dlelasmatacea Schuchert 1913

Ralanoconcha elliptica Campbell 1957
Mississippian

Balatonospira hagys 1974
Spiciferinacea Davidson 1884

Spiriferina lipoldi Bittner 1890
Triassic

Bancroftina Sinclair 1946
Enteletacea Waagen 1884

Raymondella typa whittington 1938
Ordovician

Barbaestrophia Havlicek 1965
Strophomenacea King 1346

Strophomena nraestans Barrande 1879
Silurian

Parbarorthis Opik 1934
Orthacea Woodward 1852

Parbarorthis foraminifera Opik 1934
Ordovician

Barrandina Booker 1926
Pentameracea mcCoy 1844

Pentamerus linguifera Etheridge 1892
Silurian

Barroisella Hatl&Clarke 1892
Linoulacea menke 1828

Barroisella campbelli Cooper 1942
Silurian-Mississippian

Barzellinia Gregorio 1930
Rhynchonellacea Gray 1848

Barzellinia primogenita Gregorio 1930
Triassic

Bashkiria Nalivkin 1979
Spiriferacea King 1846

Bashkiria gemma Nalivkin 1979
Mississippian

Rasilicorhynchus Crickmay 1952
Rhynchonellacea Gray 1848

Leiorhynchus basilicum Crickmay 1952
Devonian

Basiliola Dall 1908
Rhynchonellacea Gray 1848

Hemithyris beecheri Dall 1895
Tertiary-Recent

Aathymyonia muir-Wood&Cooper 1960
Productacea Gray 1843

Productus nevadensis Meek 1877
Permian

Bathynanus Foster 1974
Terebratulacea Gray 1840

Bathynanus tenuicostatus Foster 1974
Recent

Rathyrhyncha Fuchs 1923
Rhynchonellacea Gray 1848

Rathyrhyncha sinuosa Fuchs 1923
Devonian

Raturria Carls 1974
Enteletacea Waagen 1884

Orthis edgeltiana havidson 1869
Silurian-Devonian

Beachia Hall&Clarke 1893
Stringocephalacea King 1850

Meganteris suessana Hall 1857
Devonian

Beckmannia Mohanti 1972
Rhynchonellacea Gray 1848

Uncinulus minor Schmidt 1951
Devonian

Beecheria Hall&Clarke 1893
Dielasmatacea Schuchert 1913

Beecheria davidsoni Hall&Clarke 1893
Mississippian-Permian

Beichuanella Chen 1978
Stenoscismatacea Oehlert 1887

Beichuanella uniplicata Chen 1978
Devonian

Beitaia Rong&Yang 1974
Atrypacea Gin 1871

Beitaia modica Rong&Yang 1974
Silurian

Bejrutella Tchorszhewsky 1972
Terebratulacea Gray 1840

Rejrutella Oejrutika Tchorszhewsky 1972
Jurassic

Pekkerella Reed 1936
Strophomenacea King 1846

Orthis subcrateroides Reed 1906
Ordovician

Pekkeromena Roomusoks 1963
Strophomenacea King 1846

Strophomena semipartita Roemer 1861
Ordovician

Belbekella moisseiev 1939
Rhynchonelfacea Gray 1848

Belbekella airgulensis Moisseiev 1939
Cretaceous

Beteutella Litvinovich 1967
Productacea Gray 1847

Beleutella rara Litvinovich 1967
Carboniferous

Bellactathrus Winters 1963
Productacea Gray 1840

Bellaclathrus spinosus Winters 1963
Permian

Pellimurina Cooper 1956
Strophomenacea King 1846

Leptaena charlottae Winchell&Schuchert 1892
Ordovician

Belothyris Smirnova 1960
Terebratelacea King 1850

Belothyris plana Smirnova 1960
Cretaceous

Benignites Havlicek 1952
Plectambonitacea Jones 1928

Strophomena primula Barrande 1879
Ordovician

Bergalaria Schmidt 1975
Rhynchonellacea Gray 1848

Bergalaria bergica Schmidt 1975
Devonian

Reschevella Poletaev 1975
Reticutariacea Waagen 1883

Martinia snjatkovi Rotai 1937
Carboniferous

Betachoristites Gatinaud 1949
Spiriferacea King 1846

Choristites kschemyschensis Semichatova 1941
Mississippian-Permian

Betacyrtiopsis Gatinaud 1949
Spiriferacea King 1946

Cyrtiopsis kayseri Grabau 1931
Devonian

Betaneospirifer Gatinaud 1949
Spiriferacea Kinq 1846

Spirifer moosakhailensis navidson 1862
Permian

Biarea Torbakova 1959
Uncertain

Blarea sinuata Torbakova 1959
Devonian

Ribatiola Grant 1976
Chonetacea Bronn 1867

Bibatiola costata Grant 1976
Permian

Bicarinatina Ratrukova 1969
Linoutacea Menke 1828

Lingula bicarinata Kutorga 1846
Devonian

Bicia Walcott 1801
Obolettacea Walcott&Schuchert 1908

Obolella gemma Billings 1871
Cambrian

Piconostrophia Havticek 1956
Davidsoniacea King 1850

Piconostrophia soirifera Havlicek 1956
Devonian

Bicuspina Havlicek 1950
Triplesiacea Schuchert 1913

Orthis cava Parrande 1848
Ordovician

Bidentatus Khodalevich&Breivel 1972
Cyrtiacea Fredericks 1924

Bidentatus strabo Khodalevich&Brevel 1972
Devonian

Piernatella Balinski 1977
Dayiacea Waagen 1883

Piernatella polonica Ratinski 1977
Devonian

Biernatium Havticek 1975
Entetetacea Waagen 1884

Skenidium fanllax Gurich 1896
Devonian

Bifida Davidson 1882
Dayiacea Waagen 1883

Terebratula tenida Archiac&Verneuil 1842
Devonian

Rifolium Elliott 1948
Thecideacea Gray 1840

Thecidea faringdonensis Meyer 1874
Cretaceous-Tertiary

Bihendulirhynchia Muir-Wood 1935
Rhynchoneltacea Gray 1848

Bihendutirhynchia Gray Muir-Wood 1935
Jurassic

Bihenithyris Muir-Wood 1935
Terebratulacea Gray 1840

Bihenithyris barringtoni Muir-Wood 1935
Jurassic

Bilaminetta Rabanova 1964
Rhynchoneltacea Gray 1848

Bitaminella inaequicostata Babanova 1964
Jurassic

Billinosella Hall&Clarke 1892
Pillingsellacea Schuchert 1893

Orthis pepina Hall 1863
Cambrian—Ordovician

Bibbia Cooper 1996
Plectambonitacea Jones 19A8

Pilobia hemksphaerica Cooger 1956
Ordovickan

Bilotina Peed 1944
Strophaloskacea Schuchert 1913

Stroohalosia subtecta Reed 1944
Permian

Bimurka Plrich&Cooper 1942
Plectambonktacea Jones 1974

Rimuria superba Ulrich&Cooper 1942
Orlovician

Biparetis Amsden 1974
Strophomenacea King 1846

Rioaretis pauckrugosus Amsden 1974
Silurian

Biseptum Kholalevich&Brekvel 1959
Pentameracea McCoy 1844

Biseptum rectecostatum Khodalevich et al 1950
Devonian

Bisinocoelka Havlicek 1953
Cyrtiacea Frelericks 1924

Risinocoelia bisinuata Havlicek 1953
Devonian

Bispinnproductus Staknbrook 1947
Productacea Gray 1840

Bispinoproductus varispinosus Stainbrook 1947
Devonian

Bkstramia Rock 1912
Lingulacea venke 1823

Distramka eleckanS Hoek 1912
Ordovician

Bisulcata Poucot&Johnson 1979
Pentameracea McCoy 1944

Bisulcata indianensis Boucot&Johnson 1979
Silurian

Bisulckna Titova 1977
Terebratulacea Gray 1940

Terebratulina tunicata Vancurov 1966
Cretaceous

Bkttnerella Dagys 1974
Thecospiracea Pittner 1390

Oittnerella bittneri Dagys 1974
Triassic

Bittnerula Hall&Clarke 1894
Suesskacea Waagen 1883

Cyrtina zittelk Pittner 1890
Trkassic

Blasispirkfer Kulikov 1953
Spiriferacea King 1046

Spirifer blasii Verneuil 1945
Permian

Blochmanella Leidhold 1921
Phynchonellacea Gray 1846

Phynchonella friereni Branco 1879
Jurassic

Blyskavomena Havlicek 1976
Strophomenacea King 1946

Dactylogonia blyskavensis Havlicek 1967
Ordovician

Bobinella Andreeva 1968
Porambonitacea Davidson 1853

Robinella kulumbensis Andreeva 1968
Cambrian

Bodrakella Moissekev 1936
Rhynchonellacea Gray 1846

Phynchonella bodrakensis Moksseiev 1934
Jurassic

Bohemiella Schuchert&Cooper 1931
Orthacea Woodward 1852

Orthis rominoeri Barrande 1879
Cambrian

Bohemirhynchia Mekvasilova 1973
Rhynchonellacea Gray 1848

Pohemirhynchia soukupi Wekvasilova 1973
Cretaceous

Boicknetes Havlicek&Pacheooeuf 1979
Chonetacea Rronn 1862

Chonetes bohemicus Barrande 1879
Devonian

Bojarinovia Aksarina 1978
Uncertain

Rojarinovia leviqata Aksarina 1978
Cambrian

Bojodouvillina Havlkcek 1967
Strophomenarea King 1846

Leptaena phIllipsi Rarrande 1848
Denvonian

Bojothyrls Havlicek 1959
Spiriferacea King 1846

Pokothyris nikiforovae Havlicek 1959
Devonian

Ralaria Grunt 1973
Rhynchonellacea Gray 1848

Roloria garmoensis Grunt 1973
Permian

Rooralia Campbell 1961
Terebratulacea Gray 1840

Booralia ovata Campbell 1961
Carboniferous

Boreadorthis Opik 1934
Orthacea Woodward 1852

Boreadorthis crassa Opik 1934
Ordovician

Borealirhynchia Su 1976
Rhynchoneltacea Gray 1848

Rorealirhynchia delerensis Su 1976
Devonian

Bareatis Poucot Johnson&Rubet 1971
Pentameracea McCoy 1844

Gypidia boreatis Eichwald 1842
Silurian

Boreiospira Dagys 1974
Spiriferinacea Davidson 1884

Spiriferina lundgreni Boehm 1903
Triassic

Boreiothyris Dagys 1968
Rhynchonettacea Gray 1848

Boreiothyris bojarkensis Dagys 1968
Jurassic

Bornhardtina Scholz 1914
Stringocephatacea King 1853

Bornhardtina uncitoides Schul, 1914
Devonian

Bosquetella Smirnova 1969
Thecideacea Gray 1840

Thecidium campichei loriot 1872
Cretaceous

Bothrionia Cooper&Grant 1975
Productacea Gray 1840

Pothrionia nasuta Cooper&Grant 1975
Permian

Bothrostegium CooperKGrant 1974
Derbyiacea Stehli 1954

Bothrostegium derbyoideum Cooper&Grant 1974
Permian

Rotsfordia Matthew 1891
Acrotretacea Schuchert 1893

Obolus autcher Matthew 1889
Cambrian

Boubelthyris Cox&Middlemiss 1978
Terebratulacea Gray 1840

Terebratuta boubei Archaic 1847
Cretaceous

Bauchardia Davidson 1850
Terebratetlacea King 1850

Brionia rosea Mawe 1823
Tertiary-Recent

Bouchardiella Doetto-Jurado 1922
Terebratellacea King 1850

Bouchardia patagonica Ihering 1903
Cretaceous

Boutotella Rowen 1966
Rhynchonettacea Gray 1848

Camarotoechia gigantea Maynard 1913
Silurian

Boucotia Gill 1969
Chonetacea Bronn 1862

Anoplia australis Gill 1942
Devonian

Roucotides Amsden 1968
Pentameracea McCoy 1844

Roucotides barrandei Amsden 1968
Silurian

Boucotinskia Brunton&Cocks 1967
Spiriferacea King 1846

Delthyris sulcata Hisinger 1828
Silurian

Bouskia Havlicek 1975
Entetetacea Waagen 1884

Bouskia lineata Havlicek 1975
Siturian

Brachymimulus Cockerell 1929
Triptesiacea Schuchert 1913

Mimolus perversos Rarrande 1879
Ordovician-Silurian

Brachyprion Shaler 1865
Strophomenacea King 1846

Stroohomena teda Rillings 1860
Silurian-Devonian

Brachyspirifer Wedekind 1926
Spiriferacea King 1846

Spirifer carinatus Schnur 1853
Devonian

Brachythyrina Fredericks 1929
Spiriferacea King 1846

Spirifer strangwaysi Verneuil 1845
Carboniferous

Rrachythyrinetta Waterhoose&Gupta 1978
Detthyridacea Phillios 1841

Spirifer narsarhensis Peed 1928
Permian

Brachythyris McCoy 1844
Spiriferacea King 1846

Spirifera ovalis Phillips 1836
Mississippian

Brachyzyga Koztowski 1929
Stringocephatacea King 1850

Rrachyzyga pentameroides Koztowski 1929
Devonian

Bracteoteptaena Havlicek 1963
Strophomenacea King 1846

Strophomena bracteola Barrande 1879
Silurian

Brahimorthis Havticek 1971
Orthacea Wnodward 1852

Prahimorthis antigua Havticek 1971
Cambrian

Branconia Gaget 1890
Uncertain

Branconia borussica Gaget 1890
Ordovician

Prandysia Havlicek 1975
Orthacea Woodward 1852

Prandysia benigna Havticek 1975
Ordovician

Rranikia Havticek 1957
Peticutariacea Waagen 1883

Spirifer ascanius Oarrande 1879
Devonian

Pranxtonia Poker 1970
Strophatosiacea Schuchert 1913

Pranxtonia typica Booker 1930
Carboniferous

Brasilina Clarkp 1921
Stringocephatacea King 1850

Centronetta margarida Derby 1890
Devonian

Brasilioproductus mcides 1959
Productacea Gray 1840

Productus chandlessi Derby 1874
Pennsylvanian

Brevicamera Cnooer 1956
Porambonitacea Davidson 1853

Previcamera camerata Cooper 1956
Ordovician

Brevilannutetta Amsden 1974
Pentameracea mcCoy 1844

Clorinda thebesensis Savage 1913
Silurian

Breviseptum Saoetnikov 1960
Pentameracea McCoy 1844

Conchidium oriens Sapetnikov 1960
Silurian

Brevispirifer Cooner 1942
Spiriferacea King 1946

Spirifer gregaria Ctapp 1857
Devonian

Brochocarina Brunton 1968
navidsoniacea King 1850

Schochertetla wexfordensis Smyth 1930
Carboniferous

Broeggeria Watcott 1902
Lingutacea menke 1824

Obolella salteri Holl 1865
Cambrian-Ordovician

Bronnothyris Popiel-Barczyk&Smirnova 1978
Zeilleriacea Allan 1940

Terebratuta bronnii Roemer 1841
Cretaceous

Brooksina Kirk 1922
Pentameracea McCoy 1844

Brooksina alaskensis Kirk 1922
Silurian

Browneetla Chatterton 1973
Rhynchonellacea Gray 1848

Browneella browneae Chatterton 1973
Devonian

Brunnirhyncha Havlicek 1979
Rhynchonellacea Gray 1848

Bronnirhyncha bronniensis Havlicek 1979
Devonian

Bryorhynchus Cooper&Grant 1969
Rhynchonettacea Gray 1848

Camarophoria bisutcata Shumard 1858
Permian

Buchanathyris Talent 1956
Athyridacea McCoy 1844

Buchanathyris westoni Tatent 1956
Devonian

Butandetla Poberts 1976
Chonetacea Bronn 1862

Polandetia myatlensis Roberts 1976
rennsylvanian

Bullothyris Sucic-Protic 1971
Loboidothyridacea Makrldin 1964

Terebratula subpunctata Dubar 1925
Jurassic

Burmirhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Burmirhynchia gutta Buckman 1917
Jurassic

Burrirhynchia Owen 1962
Rhynchonellacea Gray 1848

Rhynchonella leightonensis Lamplugh&Walker 1903
Cretaceous

euxtonia Thomas 1914
Productacea Gray 1840

Anomites scabriculus Martin 1809
Devonian-Carboniferous

Buxtonioides Mendes 1959
Productacea Gray 1845

Productus amazonicus Katzer 1903
Pennsylvanian

Bystromena Williams 1974
Strophomenacea King 1846

Bystromena perplexa Williams 1974
Ordovician

Cacemia Mitchell 1974
Orthacea Wondward 1852

Orthis ribeirol Sharpe 1853
Ordovician

Cactosteges Cooper&Grant 1975
Aulostegacea Muir-Wood&Cooper 1960

Cactosteqes anomalus Cooperg&Grant 1975
Permian

Cadomella Munier-Chalmas 1887
Cadnmellacea Schuchert 1893

Leptaena moorei Davidson 1847
Jurassic

Caenanoplia Carter 1968
Chonetacea Bronn 1862

Caemanoplia burlingtonensis Carter 1968
Mississipoian

Caenotreta Cocks 1979
Acrotretacea Schuchert 1893

Caenotreta aldridgei Cocks 1979
Silurian-Devonian

Caeroplecia Williams 1974
Triolesiacea Schuchert 1913

Caeroplecla plicata Williams 1974
Ordovician

Calcirhynchia Puckman 1917
Rhynchonellacea Gray 1848

Calcirhynchia calcarla Buckman 1917
Jurassic

Callaiapsida Grant 1971
Stenoscismatacea Oehlert 1887

Camerisma kekuensis Grant 1971
Permian

Callicalyptella BoucotJohnson 1972
Chonetacea Bronn 1862

Callicalyptella empelia Boucot&Johnson 1972
Devonian

Calliglypha Cloud 1948
Porambonitacea Davidson 1853

Calliglypha miseri Cloud 1948
Ordovician

Calliomarginatia Chino 1976
Productacea Gray 1849

Calliomarginatia himalayensis Chino 1976
Permian

Callipentamerus Boucot 1964
Pentameracea McCoy 1844

Pentamerus corrugatus Weller&Davidson 1896
Silurian

Caltipleura Cooper 1942
Rhynchonellacea Gray 1848

Rhynchospira nobilis Hall 1860
Devonian

Calliprotonia Muir-Wood&Cooper 1960
Productacea Gray 1840

Calliprotonia renfrarum Muir-Wood&Cooper 1960
Pennsylvanian-Permian

Callispirina Cooper&Muir-Wood 1951
Spiriferinacea Davidson 1884

Spiriferina ornata Waagen 1883
Permian

Callospiriferina Rousselle 1977
Spiriferinacea Davidson 1884

Spiri fer tumidus Buch 1836
Jurassic

Calvinaria Stainbrook 1945
Rhynchonellacea Gray 1848

Rhynchonella ambigua Calvin 1878
Devonian

Calyptolepta meuman 1977
Plectambonitacea Jones 1928

Calyptolepta dlaphragma Neuman 1977
Ordovician

Camaretasma Cooper&Grant 1976
Dielasmatacea Schuchert 1913

Camarelasma neali Cooper&Grant 1976
Permian

Camarium Hall 1859
Athyridacea McCoy 1844

Camarium typum Hall 1859
Silurian-Devonian

Camarophorelta Hall&Clarke 1893
Athyridacea McCoy 1844

Pentamerus lenticularis White&Whitfield 1862
Devonian-Mississippian

Camarophorina Licharew 1934
Steooscismatacea Oehtert 1837

Camarophoria antisella Proili 1916
Mississipoian-Permian

Camarophorinella Licharew 1936
Stenoscismatacea Oehtert 1887

Camarophorinella caucasica Licharew 1936
Permian

Camarospira Hall&Clarke 1893
Athyridacea McCoy 1844

Camarophoria eucharis Hall 1867
Devonian-Mississipoian

Camarothyridina Linnik 1966
Phynchonellacea Gray 1848

Camarothyridina furssenkoi Linnik 1966
Devonian

Camarotoechia Hall&Clarke 1893
Rhynchonellacea Gray 1848

Atrypa congreclata Conrad 1841
Devonian

Camarotoechioides Rzonsnitzkaja 1978
Rhynchonellacea Gray 1848

Camarotoechia lazutkini Rzonsnitzkaja 1955
Devonian

Cambrotrophia Utrich&Cooper 1937
Porambonitacea Davidson 1853

Syntrophia camhria Walcott 1908
Cambrian

Camerella Billings 1859
Porambonitacea Davidson 1853

Camerella volborthi Billings 1859
Ordovician-Silurian

Camerisma Grant 1965
Stenoscismatacea Oehlert 1887

Camerisma prava Grant 1965
Mississipoian-Permian

Camerophorina Schmidt 1941
Rhynchonellacea Gray 1848

Terebratula pachyderma Querstedt 1871
Devonian

Camerothyris Rittner 1890
Zeilleriacea Allan 1940

Terebratula ramsaueri Suess 1855
Triassic

Campages Hedtey 1905
Terebratellacea King 1850

Campages furcifera Hedley 1995
Tertiary-Recent

Campylorthis Ulrich&Cooper 1942
Orthacea Woodward 1852

Stroohomena deflecta Conrad 1843
Ordovician

Canadosoira Dagys 1972
Spiriferinacea Davidson 1884

Spiri ferina canadensis Logan 1967
Triassic

Cancellospirifer Camphell 1953
Spiriferacea King 1846

Cancellosoirifer maxwelli Campbell 1953
Permian

Cancellothyris Thomson 1926
Terebratulacea Gray 1840

Terebratulina hedteyi Finlay 1927
Tertiary-Recent

Cancrinella Fredericks 1928
Productacea Gray 1940

Productus cancrini Verneuil 1845
Pennsylvanian-Permian

Cancrinelloides Ustritsky 1963
Productacea Gray 1840

Productus obrutshewi Licharew 1934
Permian

Candispirifer Havlicek 1971
Spiriferinacea Davidson 1884

Proreticularia candida Havlicek 1959
Devonian

Canthylotreta Rowell 1966
Acrotretacea Schuchert 1893

Acrotreta marjumensis Walcott 1908
Cambrian

Capelliniella Strand 1928
Pentameracea McCoy 1844

Capellinia mira Hall&Clarke 1893
Silurian

Capitlirhynchia Eluckman 1917
Rhynchonellacea Gray 1848

Rhynchonella wrighti Davidson 1852
Jurassic

Capillirostra Coopergmuir-Wood 1951
Rhynchonellacea Gray 1148

Rhynchoneltina finkelsteini Hose 1894
Jurassic

Capillithyris Katz 1974
Terebratulacea Gray 1840

Terebratula capillata Archiac 1947
Cretaceous

Capillonia Waterhouse 1973
Chonetacea Rronn 1862

Lissochonetes brevisulcus Waterhoose 1964
Permian

Caplinoplia Havlicek&Racheboeuf 1979
Chonetacea Pronn 1862

Caplinoplla oragensis Havlicek&Racheboeuf 1979
Devonian

Carapezzia Tomlin 1932
Rhynchonellacea Gray 1848

Rhynchonellina globosa Carapezza&Schopen 1899
Jurassic

Carbocyrtina Ivanova 1775
Cyrtinacea Fredericks 1912

Carbocyrtina triplicata Ivanova 1975
Carboni ferous

Cardiarina Cooper 1956
Rhynchonellacea Gray 1848

Cardiarina cordata Cooper 1956
Pennsylvanian

Cardinlrhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Terebratula acuticosta Hehl 1832
Jurassic

Cardinocrania Waagen 1435
Lyttoniacea Waagen 1483

Cardinocrania indica Waagen 1885
Permian

Cardiothyris Roberts 1971
Athyridacea McCoy 1344

Cardiothyris bisulcata Roberts 1971
mississippian

Caricula Grand 1976
Productacea Gray 1843

Caricula salebrosa Grani 1976
Permian

Carinagypa Johnson&Ludvigsen 1972
Pentameracea McCoy 1544

Gyoidola loweryi Merriam 1940
Devonian

Carinastrophia nratsianova 1975
Davidsoniacea King 1850

Areostrophia elinovi Gratsianova 1975
Devonian

Carinatina Nalivkin 1930
Atrypacea Gill 1871

Orthls arimaspus Eichwald 1840
nevonian

Carinatinella Gratsianova 1967
Atrypacea Gill 1871

Carinatinella concentrica Gratsianova 1967
Devonian

Carinatrypa Copoer 1973
Atrypacea Gill 1871

Spinatrypa dysmorphostrota Crickmay 1960
nevonian

Cariniferella Schuchert&Cooper 1931
Enteletacea Waagen 1334

Orthis carinata Hall 1843
Devonlan

Carinokoninckina Jin&Panq 1977
Koninckinacea Davidson 1853

Koninckina capan sa Rittner 1893
Triassic

Carlinia Gordon 1971
Productacea Gray 1843

Productos phillipsi Noruood&Pratten 1855
Mississipaian

Carlopsina Reed 1954
Davidsoniacea King 1350

Spirifera radialis Phi lbs 1836
Mississippian

Carneithyris Sahni 1925
Terebratolacea Gray 1840

Carneithyris subpentagonalis Salmi 1925
Cretaceous

Carpatothyris Smirnova 1975
Terebratellacea Kino 1850

Terebratula repanda Zeuschner 1857
Jurassic

Cartorhium Cooper&Grant 1976
Spiriferacea King 1946

Cartorhium retusum Cooper&Grant 1976
Permian

Caryogyps JorpsorlrBoucot&Murphy 1976
Pentameracea McCoy 1844

Caryogyps olicata Johnson et al 1976
Silurian

Caryorhynchus Crickmay 1952
Rhynchonellacea Gray 1848

Leiorhynchus carya Crickmay 1952
Devonian

Casouella Percivat 1979
Lingulacea Menke 1828

Casnuetla bifida Percival 1978
Ordovician

Cassianospira Dagys 1972
Retziacea Waagen 1883

Retzia toczyi Bittner 1912
Triassic

Cassidirostrum McLaren 1961
Rhynchonettacea Gray 1848

Cassidirostrum pedderi McLaren 1961
Devonian

Castettaroina Poucot 1972
Strophomenacea King 1946

Tropidoleptus fascifer Kayser 1897
Silurian

Catazyga HattIClarke 1993
Atrypacea Gitt 1871

Athyris headi rlittings 1852
Ordovician-Silurian

Cathaysia Chino 1966
Strophatosiacea Schuchert 1913

Productus chonetoides Clac, 1927
Permian

Caucasetla Moisseiev 1934
Rhynchonellacea Gray 1848

Rhynchonella trigonetta Rothotetz 1886
Jurassic

Caucasorhynchla Dagys 1963
Rhynchoneltacea Gray 1848

Caucasorhynchia kunensis Dagys 1963
Triassic

Caucasothyris Dagys 1974
Dietasmatacea Schuchert 1913

Caucasothyris angustipticatus nagys 1974
Triassic

Causea wiman 1905
Paterinacea Schuchert 1193

CausPa formosa Wiman 1905
Cambrian

Cavatisinurostrum Sarteraer 1972
Rhynchonellacea Gray 1848

Cavatisinurostrurn faniae Sartenaer 1972
Devonian

Cedutia Racheboeuf 1979
Chonetacea Bronn 1862

Chonetes douvillei Rigaux 1892
Devonian

Celebetes Grant 1976
Strophatosiacea Schuchert 1913

Celebetes gymnus Grant 1976
Permian

Cetsifornix Carter 1974
Spiriferacea King 1846

Celstfornix rowleyi Carter 1974
Mississippian

Cenorhynchia Cooper&Grant 1976
Rhynchonettacea Gray 1848

Cenorhynchia fracida Cooper&Grant 1976
Permian

Centronetla Rillings 1859
Stringocephatacea King 1850

Rhynchonetta glansfaqea Hall 1857
Devonian

Centronetloidea Weller 1914
oielasmatacea Schuchert 1913

Terebratula rowleyi Worthen 1884
Mississippian

Centrorhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Camarotoechia baitatensis Reed 1922
Devonian

Centrospirifer Tien 1938
Spiriferacea King 1846

Spirifer chaoi Grabau 1931
Devonian

Ceocypea Grant 1972
Strophatosiacea Schuchert 1913

Ceocypea dischides Grant 1972
Permian

Ceratreta Bell 1941
Acrotretacea Schuchert 1893

Ceratreta hebes gell 1941
Cambrian

Cererithyris Puckman 1917
TerebratulacPa Gray 1840

Terebratuta intermedia Sowerby 1813
Jurassic

Chaeniorhynchus Cooper&Grant 1976
Rhynchonellacea Gray 1848

Chaeniorhynchus inauris Cooper&Grant 1976
Permian

Chaganella Nikitin 1974
Plectambonitacea Jones 1928

Chaganella changanensis Nikitin 1974
Ordovician

Chancishaisoirifer Zhao 1977
Spiriferacea King 1846

Changshaisoirifer lianhuaoiaoensis Zhao 1977
Devonian

Chaoella Licharew 19031
lyttoniacea Waagen 1983

Chaoella caucasica Licharew 1931
Permian

Chaoiella Fredericks 1933
Productacea Gray 1941

Productus gruenewaldti Krotow 1888
Pennsylvanian—Permian

Chaoina Ching 1974
Productacea Gray 1840

Chacina reticulata Ching 1974
Permian

Chapadella Greger 1929
Stringocephalacea King 1850

Centronella margarida Deroy 1890
Devonian

Chapinella Savage et al 1979
Athyridacea McCoy 1844

Chapinella bucareliensis Savage et al 1978
Devonian

Charionella Billings 1861
Athyridacea McCoy 1844

Atrypa scitula Hall 1843
Devonian

Charionoides Houcot,Johnson&Staton 1964
Athyridacea McCoy 1844

Meristella doris Hall 1861
Devonian

Charltonithyris Puckman 1917
Terebratulacea Gray 1840

Terebratula uptoni Puckman 1895
Jurassic

Chascothyris Holzapfel 1895
Stringocephalacea King 1850

Chascothyris barroisi Holzapfel 1895
Devonian

Chathamithyris Pilan 1932
Terebrateltacea King 1850

Chathamithyris traversi Allan 1932
Tertiary

Chattertonia Johnson 1976
Productacea Gray 1840

Spinulicosta campbelli Chatterton 1973
Devonian

Chatwinothyris Sahni 1925
Terebratulacea Gray 1843

Chatwinothyris subcardinalis Sahni 1925
Cretaceous

Chaulistomella Cooper 1956
Orthacea Woodward 1852

Chautistomella ineguistriata Cooper 1956
Ordovician

Cheirothyris Pollier 1919
Zeilleriacea Allan 1940

Terebratula fleuriausa Oroigny 1850
Jurassic

Cheirothyropsis Makridin 1964
Terebratulacea Gray 1840

Terebratula oseudotrigonella Trautschold 1877
Jurassic

Chekononia Cooper&Grant 1974
Derbyiacea Stehli 1954

Chelononia neali Cooper&Grant 1974
Pe rolan

Chemungia Caster 1939
Strophomenacea King 1846

Stropheodonta caelata Hall 1867
Devonian

Cheniothyris Ruckman 1917
Terebratulacea Gray 1840

TerebratuLa morierei Deslongchamps 1852
Jurassic

Chianella Waterhouse 1975
Productacea Gray 1840

Avonia chianensis Chao 1927
Permian

Chilianshania Yang&Ting 1962
Productacea Gray 1840

Chilianshania chilianshanensis YangSTing 1962
Permian

Chilidiopsis noucot 1959
Davidsoniacea King 1850

Fardenia reedsi Amsden 1951
Silurian

Chilidorthis Havlicek 1972
Orthacea Woodward 1952

Chilidorthis tecta Havlicek 1912
Cambrian

Chimaerothyris Paulus Struve&Wolfart 1963
Spiriferacea King 1846

Chimaerothyris hotzi Paulus et al 1963
Devonian

Chivatschella Zavodowsky 1968
RhynchonPllacea Gray 1848

Chivatschella orotchensis Zavodowsky 1968
Permian

Chlidonophora Dall 1903
Terebratulacea Gray 1840

Megerlia incerta Davidsan 1878
Cretaceous-Recent

Chlupacina Havlicek&Racheboeuf 1979
Chonetacea Bronn 1862

Chluoacina longspina Havlicek&Racheboeuf 1979
Devonian

Chnaurocoelia Johnson,Boucot&Murphy 1976
Cyrtiacea Fredericks 1924

Chnaurocoelia transversa Johnson et al 1976
Silurian

Choanodus Cooper&Grant 1974
Lyttonlacea Waagen 1853

Choanodus irregularis Cooper&Grant 1974
Permian

Chondronia Cooper&Grant 1976
Cryptonellacea Thomson 1926

Chondronia bella Cooper&Grant 1976
Permian

Chonetella Waagen 1854
Strophatosiacea Schuchert 1913

Chonetella nasuta Waagen 1854
Permian

Chonetes Fischer 1830
Chonetacea Prono 1862

Terebratulites sarcinutatus Schlotheim 1820
Devonian

Chonetina Krotow 1888
Chonetacea gronn 1862

Chonetella artiensis Krotow 1885
Permian

Chonetinella Ramshottom 1952
Chonetacea Bronn 1862

Chonetes flemingi 5orwood&Pratten 1855
Pennsylvanian-Permlan

ChOnetlnetes Cooper&Grant 1969
Chonetacea oros 1862

Chonetinetes reversus Cooper&Grant 1969
Permian

Chonetipustula Paeckelmann 1931
Productacea Gray 1840

Productus plicatus Sarres 1857
Mississippian

Chonetoidea Jones 1928
Plectamhonitacea Jones 1928

Plectamhonites papillosa Reed 1905
Ordovician-Silurian

Choniopora Schauroth 1854
Craniacea Mente 1828

Choniopora radiata Schauroth 1854
Permian

Chonooectella Sarytcheva 1966
Productacea Gray 1840

Chonopectoides Permianicus Sarytcheva 1965
Permian

Chonopectoides Crickmay 1963
Productacea Gray 1840

Chonopectoides catamorphus Crickmay 1963
Devonian

Chonopectus Hall&Clarke 1892
Productacea Gray 1840

Chonetes fischeri Norwood&Pratten 1855
hevonian-Mississippian

Chonosteges Muir-Wood&Cooper 1960
Strophalosiacea Schuchert 1913

Aulosteges magnicostatus Girty 1939
Permian

Chonostegoides Sarytcheva 1965
Strophalosiacea Schuchert 1913

Chonostegoides oghinensis Sarytcheva 1965
Permian

Chonostrophia Hall&Clarke 1592
Chonetacea Rronn 1962

Chonetes reversa Whitfield 1882
Silurian-Devonian

Chonostrophiella Roucot&Amsden 1964
Chonetacea Pronn 1862

Chonetes complanata Hall 1857
nevonian

Choperella Ljaschenko 1969
Cyrtiacea Fredericks 1924

Choperella ilmenica Ljaschenko 1969
Devonian

Choristitetla Ivanov&Ivanova 1937
Spiriferacea King 1846

Choristites podolskensis Ivanov 1926
Pennsylvanian

Choristites Fischer 1825
Spiriferacea King 1846

Choristites mosquensis Fischer 1825
MiSsissilnian-Permian

Choristothyris Cooper 1942
Terebratettacea King 1850

Terebratuta pticata Say 1820
Cretaceous

Christiania Hall&Clarke 1892
Strophomenacea King 1846

Leptaena subquadrata Hall. 1883
Ordovician

Chrustenopora Havlicek 1968
Entetetacea Waagen 1984

Chrustenopora imbricata Havticek 1968
Ordovician

Chynistrophia Havticek 1977
Stropheodontacea Caster 1939

Chynistrophia fotiola Havticek 1977
Devonian

Citinetta Havticek 1970
Entetetacea Waagen 1854

Svobodaina svobodai HavtIcek 1950
Ordovician

Cimicinetta Schmidt 1943
Stringocephatacea Kinq 1850

Terebratuta rimex Richter&Richter 1918
Devonian

Cimicinoides Anderson, Roucot&Johnson 1969
Stringocephatacea King 1850

Cimicinoides struvei Anderson et al 1969
Devonian

Cincta Quenstedt 1868
Zeit teriacea Allan 1940

Terebratula numismatis Valenciennes 1819
Jurassic

Cinctifera Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus medusa Koninck 1842
Mississippian

Cinerorthis Havlicek 1974
Orthacea Woodvard 1852

Cinerorthis cineraria Havlicek 1974
Silurran

Cingutodermis Havticek 1971
Reticutariacea Waagen 1883

Cingutodermis cinctus Havticek 1971
Devonian

Cirpa Gregorio 1930
Rhynchonettacea Gray 1848

Rhynchonetta primitiva Gregorio 1930
Jurassic

Cistettarcula Elliott 1954
Terebratettacea King 1850

Cistellarcuta wrigteyi Fltiott 1954
Tertiary

Clarkeia Kozlowski 1923
Rhynchonettacea Gray 1848

Terebratuta antisiensis Orbiony 1847
Silurian

Clarkelta Walcott 1905
Porambonitacea Davidson 1853

Potytoechia montanensis Walcott 1935
Ordovician

Clathrithyris Smirnova 1974
Dallinacea Beecher 1893

Clathrithyris ctathriensis Smirnova 1974
Cretaceous

Clavigera Hector 1879
Reticulariacea Waagen 1883

Ctavigera bisulcata Hector 1913
Triassic

Clavodalejina Havlicek 1977
Fntetetacea Waagen 1884

Ctavodatejina ctavigera Havlicek 1977
Devanan

Cteiothyridettina Waterhouse 1978
Athyridacea MrCoy 1544

Cleiothyridetlina accoliformis Waterhouse 1978
Permian

Cteiothyridina Buckman 1906
Athyridacea McCoy 1844

Spirifer rOissyi Level te 1835
Mississipoian-Permian

Cliftonia Foerste 1909
Triptesiacea Schuchert 1913

Cliftonia striata Foerste 1909
Ordovician-Silurian

Ctinambon Schuchert&Cooper 1932
Clitambonitacea Winchell&Schuchert 1893

Anomites anomatus Schtotheim 1822
Ordovician

Clintonella Hall&Clarke 1893
Atryoacea Gill 1471

Clintonella vagabunda Hatt&Clarke 1893
Silurian

Clistotrema Rowell 1963
Acrotretacea Schuchert 1893

Orbicuta buchii Verneuit 1845
Ordovician

Ctitambonites Agassiz 1847
Ctitambonitacea Winchetl&Schuchert 1893

Pronites adscendens Pander 1830
Ordovictan

Ctivosplriter Ljaschenko 1973
Spiriferacea King 1846

Uchtospirifer clivosus Ljaschenko 1969
Devonian

Clorinda Rarrade 1879
Pentameracea McCoy 1844

Clorinda armata Barrande 1879
Silurian-Devontan

Clorindella Amsden 1864
Pentameracea McCoy 1844

Rarrandella areyi Hall&Clarke 1893
Silurian

Clorindina Khodatevich 1939
Pentameracea McCoy 1844

Clorindina uratica Khodatevich 1939
Devonian

Ctorindinetla Rzonsnitzkaja 1975
Pentameracea McCoy 1844

Ctorindina alarica Nikiforova 1960
Devonian

Cloudetla Boucot&Johnson 1963
Stringocephatacea King 1850

Penssetaeria stewarti Clarke 1907
Devonian

Ctoudothyris Boucot&Johnson 1968
Terebratutacea Gray 1840

Cloudothyris postovatis Boucot&Johnson 1968
Devonian

Cnismatocentrum Dall 1920
Terebratutacea Gray 1840

Terebratula sakhalinensis Dall 1938
Recent

Coetospira Hall 1863
Daylacea Waagen 1883

Teptocoetia concava Hall 1857
Silurian-Devonian

Coetosplretta Su 1976
Dayiacea Waagen 1883

Coetospiretta dongbeiensis Su 1976
Devonian

Coelosotrina Havlicek 1956
Dayiacea waagen 1883

Coetospirina modica Havlicek 1956
Devonian

Coetoterorhynchus Sartenaer 1966
Rhynchonettacea Gray 1841

Puganx acuminatus Schmidt 1941
Devonian

Coenothyris Douville 1879
Dielasmatacea Schuchert 1913

Terebratuta vulgaris Schtotheim 1820
Triassic

Cotaptomena Cooner 1956
Strophomenacea King 1846

Colaptomena teptostrophoidea Cooper 1956
Ordovician

Cotedium Grant 1965
Stenoscismatacea Oehtert 1887

Cotedium erugatum Grant 1965
Devonian-Permjan

Collarothyris Modzatevskaja 1970
Athyridacea McCoy 1844

meristetla canaticutata Wenjukow 1899
Silurian-Devonian

Cottemataria Cooper&Grant 1974
Lyttoniacea Waagen 1883

Cottemataria etongata Cooper&Grant 1974
Permian

Cottumatus Cooper&Grant 1969
Richthofeniacea Waagen 1885

Cottumatus solitarius CooperlGrant 1969
Permian

Cotongina Rreivel&Rreivet 1970
Athyridacea McCoy 1844

Cotongina putilla Rreivel&Oreivet 1970
Devonian

Comatopoma Havlicek 1950
Ente tetacea Waagen 1584

Comatopoma barrandei Havlicek 1950
Ordovician

Cometicanta Frech 1901
Uncertatn

Athyris megatotis Stache 1878
Permian

Comiotoechia Ljaschenko 1973
Rhynchonellacea Gray 1848

Camarotoechia galinae Ljaschenko 1958
Devonian

Composita Brown 1849
Athyridacea McCoy 17344

Spirifer ambiguus Sowerby 1823
Devonian-Permian

Compressoproductus Sarytcheva 1960
Productacea Gray 1840

Productus compressus Waagen 1884
Permian

Compsoria Cooper 1973
Terebratellacea King 1850

Compsoria suffusa Cooper 1973
Recent

Compsothyris Jackson 1918
Rhynchonellacea Gray 1848

Rhynchonella recovitzae Jouoin 1901
Recent

Comuquia Grant 1976
Productacea Gray 1343

Comuquia modesta Grant 1976
Permian

Conchidiella Khodalevich 1939
Pentameracea McCoy 1844

Pentamerus pseudobaschkiricus Tschernyschew 1885
Silurian

Conchidium Oehlert 1827
Pentameracea McCoy 1844

Anomia bilocularis Hisinger 1799
Ordovician-Devonian

Concinnispirifer Roucot 1975
Spiriferacea King 1846

Spirifer concinna Hall 1857
nevonian

Concinnithyris Sahni 1929
Terebratulacea Gray 1840

Terebratula obesa Soweroy 1823
Cretaceous

Condrathyris Minato 1953
Reticulariacea Waagen 1883

Spirifer perplexa McChesney 1860
Pennsylvanian-Permian

Connectoproductus Donakova 1974
Productacea Gray 1843

Productus probos Rotai 1931
Mississippian

Conodiscus Ulrich&Cooper 1936
Acrotretacea Schuchert 1893

Acrothele burlingi Kobayashi 1935
Cambrian-Ordovician

Conomimus Johnson Boucot&Gronberg 1968
Stringocephalacea King 1853

Conomimus truncatus Johnson et al 1968
Devonian

Conotreta Walcott 1889
Acrotretacea Schuchert 1893

Conotreta rust, Walcott 1889
Ordovician

Contradouvillina Gratsianova 1975
Strophomenacea King 1846

Contradouvillina salairica Gratsianova 1975
Devonian

Coolinia Bancroft 1949
Davidsoniacea King 1850

Orthis appianata Salter 1846
Ordovician-Silurian

Cooperina Termier,Termier&Pajaud 1966
Aulostegacea Muir-Wood&Cooper 1960

Cooperina inexpectata Cerner et al 1966
Permian

Coptothyris Jackson 1918
Terebratelfacea King 1850

Terebratula grayi Davidson 1852
Tertiary-Recent

Corbicutaria Ljaschenko 1973
Chonetacea Bronn 1862

Chonetes menneri Ljaschenko 1958
Devonian

Cordatomyonia moucot,Gauri&Johnson 1966
Ente letacea Waagen 1814

Cordatomyonia shupei Boucot et al 1966
Devonian

Corineorthis Stubblefield 1939
Orthacea Woodward 1852

Corineorthis decipiens Stubblefield 1939
Ordovician

Cornwallia Wilson 1932
Uncertain

Cornwallta minuta Wilson 1932
Ordovician

Coronatosia Waterhouse&Gupta 1978
Strophalosiacea Schuchert 1913

Coronalosia blijniensis Waterhouse&Gupta 1978
Permian

Corrugatimediorostrum Sartenaer 1970
Rhynchonettacea Gray 1848

Terebratuta rockymontana Marcou 1858
Pennsylvanian

Cortezorthis Johnson&Talent 1967
Dalmanellacea Schochert 1913

Cortezorthis mactareni Johnson&Talent 1967
Silurian-Devonlan

Corvinopugnax Havlicek 1961
Rhynchonettacea Gray 1848

Rhynchonetla corvina Barrande 1847
Devonian

Coscinarina Moir-Wood&Cooper 1963
Richthofeniacea Waagen 1885

Pichthofenia communis Gemmellaro 1894
Permian

Coscinophora CooperkStehli 1955
Lyttontacea Waacien 1883

Coscinophora nodosa Cooper&Stehli 1955
Permian

Costachonetes Waterhoose 1975
Chonetacea Pronn 1862

Chonetes oratica Lotzy 1899
Pennsylvanian-Permian

Costacranaena Johnson&Perry 1976
Dietasmatacea Schuchert 1913

Costacranaena marterial Johnson&Perry 1976
Devonian

Costanoplia Xu 1977
Pticanoptitacea Xu 1977

Costanoplia faceta xu 1977
Devonlan

Costatrypa Copper 1973
Atrypacea Gill 1871

Atrypa varicostata Stainbrook 1945
Devonian

Costettarina Muir-Wood&Cooper 1967
Strophatoslacea Schuchert 1913

Costetlaria costellata Muir-Wood&Cooper 1969
Permian

Costettirostra Cooper 1942
Rhynchonettacea Gray 1848

Atryoa pecutiaris Conrad 1841
Devonian

Costellispirifer Boucot 1973
Delthyridacea Phillips 1841

Spirifer perimete Clarke 1907
Devonian

Costiferina Moir-Wood&Cooper 1960
Productacea Gray 1840

Prodoctus indicus Waagen 1884
Permian

Costinorella Dagys 1974
Rhynchonellacea Gray 1848

Costinorella zharnikovae Dagys 1974
Triassic

Costirhynchia Buckman 1917
Rhynchonettacea Gray 1848

Costirhynchia costigera Buckman 1917
Jurassic

Costirhynchopsis Dagys 1977
Rhynchonettacea Gray 1848

Costirhynchia spatiosa Dagys 1074
Triassic

Costisorthis Havlicek 1974
Orthacea Woodward 1852

Orthis occtusa Parrande 1848
Devonian

Costispinifera Muir-Wood&Cooper 1960
Productacea Gray 1840

Costispinifera tekana Muir-Wood&Cooper 1960
Permian

Costispirifer Cooper 1942
Spiriferacea King 1846

Spirifer arenosos Swartz 1929
Devonian

Costispiriferina Dagys 1974
SpiriferInacea Davidson 1884

Spiriferina shatshatensis Bittner 1899
Triassic

Costistricktandia Amsden 1953
Pentameracea McCoy 1844

Stricktandia gasPeensis Billings 1859
Silurian

Costistrophonella HarperRaoucot 1978
Stropheodontacea Caster 1939

Strophomena punctutifera Conrad 1838
Devonian

Costoconcha Ching-Sun&Ye 1979
Dietasmatacea Schuchert 1913

Costoconcha zigaensis Ching-Sun&Ye 1979
Triassic

Craigella Reed 1935
Triplesiacea Schuchert 1913

Triptesia grayiae Davidson 1869
Ordovician

Cranaena Hall&Clarke 1893
Dielasmatacea Schuchert 1913

Terebratula romingeri Hall 1863
Devonian-mississippian

Cranaenella Fenton&Fenton 1924
Dielasmatacea Schuchert 1913

Terebratula navicella Hall 1867
Devonian-Mississippian

Crania Retzius 1781
Craniacea Menke 1828

Anomia craniolaris Linne 1758
Triassic-Recent

Craniops Hall 1859
Lingulacea merle 1828

Orbicula squamiformis Hall 1843
Ordovician-Mississippian

Craniotreta Termierlmonod 1978
Siphonotretacea Kutorga 1848

Craniotreta cal tepensis Termier&Monod 1978
Cambrian

Craniscus Dall 1871
Craniacea Menke 1828

Crania tripartita Munster 1837
Jurassic-Recent

CraSPedalosia Muir-Wood&cooper 1960
Strophalosiacea Schuchert 1913

Orthothrix lamellosa Geinitz 1848
Permian

Craspedelia Cooper 1956
Ptectambonitacea Jones 1928

Craspedelia marginata Cooper 1956
Ordovician

Crasoedona Cooper&Grant 1975
Aulosteciacea muir-Wood&Cooper 1960

Craspedona newelli Cooper&Grant 1975
Permian

Crassatrypa Mizens 1977
Atrypacea Gill 1871

AtrKPa diversa Sapelnikov 1968
Silurian

Crassiorina Havlicek 1950
Enteletacea Waagen 1984

Orthis notata Plarrande 1879
Ordovician

Crassipunctatrypa mizens et al 1979
AtrYPacea Gill 1871

Punctatrypa crassiconcentrica Mizens 1977
Devonian

Crassumbn Carter 1967
Reticulariacea Waagen 1883

Crassumbo inornatus Carter 1967
Mississippian

Cremnorthis Williams 1963
Orthacea Woodward 1852

Cremnorthis parva Williams 1963
Ordovician

Crenisplrifer Stehli 1954
Spiriferinacea Davidson 1984

Spiriferina angulata King 1931
Pennsylvanian-Permian

Cretirhynchia Pettitt 1950
Rhynchonetlacea Gray 1848

Terebratula olicatilis Sowerby 1816
Cretaceous

Cricosia Cooper 1973
Cancellothyridacea Thomson 1926

Terebratulina filosa Conrad 1866
Cretaceous

Crinistrophia Havlicek 1967
Strophomenacea King 1846

Crinistrophia crinita Havlicek 1967
Devonian

Criopus Poli 1791
Craniacea Menke 1829

Anomia imperforata Poli 1791
Triassic-Recent

Cristiferina Cooper 1956
Enteletacea Waagen 1884

Cristiferina cristata Cooper 1956
Ordovician

Crossacanthia Gordon 1966
Productacea Gray 1840

Crossacanthia perlamellosa Gordon 1966
Mississippian

Crossalosia Muir-Wood&Cooper 1960
Strophatosiacea Schuchert 1913

Productus bachianis Koninck 1847
Mississippian

Crozonorthis Melou 1976
Orthacea Woodward 1852

Crozonorthis musculosa Melou 1976
Ordovician

Cruralina Smirnnva 1966
Terebratulacea Gray 1860

Cruralina cruralinica Smirnova 1966
Cretaceous

Cruratula Gittner 1890
Dielasmatacea Schuchert 1913

Waldheimia eudora Laube 1866
Triassic

Cruricella Grant 1976
Cyrtiacea Fredericks 1924

Cruricella couria Grant 1976
Permian

Crurirhynchia Dagys 1961
Rhynchonellacea Gray 1848

Crurirhynchia kiparisovae Dagys 1961
Triassic

Crurithyris George 1931
Cyrtiacea Fredericks 1924

Spirifer urei Flening 1828
Devonian-Permian

Cryptacanthia White&St.John 1867
Cryptonellacea Thomson 1926

Waldheimia compacta White&St.John 1367
Pennsylvanian-Permian

Cryptatrypa Siehl 1962
Atrypacea Gill 1871

Terebratula philomela Barrane 1847
Silurian-Devonian

Cryptonella Hall 1861
Dielasmatacea Schuchert 1913

Terebratula rectirostra Hall 1860
Devonian&Permian

Cryptopora Jeffreys 1869
Rhynchonellacea Gray 1848

Atretia gnomon Jeffreys 1876
Tertiary-Recent

Cryptoporella Bitner&Pisera 1979
Rhynchonellacea Gray 1848

Cryptoporelta antigua Bitner&Pisera 1979
Cretaceous

Cryptorhynchia Buckman 1917
Rhynchonellacca Gray 1848

Rhynchonella pulcherrima Kitchin 1900
Jurassic

Cryptospirifer Grabu 1931
Reticulariscea Waagen 1883

CrYptospirifer lochengensis Graba, 1931
Carboni ferous

CryptothyrelLa Cooper 1942
Dthyridacea McCoy 1844

Whitfieldella guamiranguLaris Foerste 1906
Ordovician-Silurian

Cryptothyris Bancroft 1945
Ente tetacea Wvagen 1884

Resserella oaracyclica Bancroft 1928
Ordoviciar

Cryptotreta Pelean 1977
Paterinacea Schuchert 1893

Cryptotreta nequertchenensis Pelman 1977
Cambrian

Ctenalosia Cooper&Stehli 1955
Strophatosiacea Schuchert 1913

Ctenalosia fixata Cooper&Stehli 1955
Permian

Ctenochonetes Racheboeuf 1976
Chonetacea 9ronn 1862

Chonetes tenuicostata Oehlert 1877
Devonian

Ctenokoninckina xu 1978
Koninckinacea Davidson 1853

Ctenokoninckina typica Xu 1978
Triassic

Cubanirhynchia Kamyschan 1968
Rhynchonellacea Gray 1848

Cubanirhynchia rostovtzevi Kamyschan 1968
Jurassic

Cubanothyris Dagys 1959
Dielasmatacea Schuchert 1913

Cubanothyris elegans Dagys 1959
Triassic

Cudmorella Altar, 193a
Terebratellacea Kina 1850

Cudmorella tatei Allan 1939
Tertiary

Cumberlandina Boucot 1975
Spiriferacea ring 1846

Spirifer cumberlandiae Hall 1857
Devprrian

Cuneirhynchia 9uckman 1917
Rhynchonellacea Gray 1848

Rhynchonella dainmasi Dumortier 1869
Triassic-Jurassic

Cuparius Ross 1971
Porambonitacea Davidson 1853

Cuparius cardilatus Ross 1971
Ordovician

Cupularostrum Sartenaer 1961
Rhynchonellacea Gray 1848

Cuputarostrum recticostatum Sartenaer 1961
Devonian

Curticia walcott 1905
Acrotretacea Schuchert 1893

Curticia elegantula Walcott 1905
Cambrian

Curtirhynchia euckman 1917
Rhynchonellacea Gray 1848

Rhynchonella ootItIca Davidson 1852
Jurassic

Cyclacantharia Cooper&Grant 1969
Richthofeniacea Waagen 1885

Cyclacantharia kingorum Cooper&Grant 1969
Permian

Cycladigera Havlicek 1971
Enteletacea Waagen 1984

Orthis palliata Parrande 1848
Devonian

Cyclocoelia Foerste 1909
Orthacea Woodward 1952

Atrypa sordida Hall 1847
Ordovician

Cyclomyonla Cooper 1956
Ente letacea Waagen 1884

Cyclomyonia peculiaris Cooper 1956
Ordovician

Cyclospira Hall&Clarke 1893
nayiacea waagen 1833

Orthis bisulcata Emmons 1842
Ordovician-Silurian

Cyclothyris McCoy 1844
Rhynchonellacea Gray 1848

Terebratula latissima Sowerby 1829
Cretaceous

Cydimia Chatterton 1973
Stringocephalacea King 1850

Cydimia robertsi Chatterton 1973
Devonian

Cymatorhynchia Buckman 1917
Rhynchonellacea Gray 1848

Rhynchonella cymatophorina Buckman 1910
Jurassic

Cymbidium Kirk 1926
Pentameracea McCoy 1844

Cymbidium acutum Kirk 1926
Silurian

Cymbistropheodonta Harper&Boucot 1978
Stropheodontacea Caster 1939

Strophodonta cymbiformis Swallow 1860
Devonian

Cymbithyris Cooper 1952
Pillingsellacea Schuchert 1893

Cymbithyris hami Cooper 1952
Cambrian

Cymostrophia Caster 1930
Strophomenacea King 1846

Leptaena stephani Barrande 1879
Silurian-Devonian

Cyphomena Cooper 1956
Strophomenacea King 1846

Leptaena homostriata Butts 1942
Ordovician

Cyphomenoidea Cocks 1968
Strophomenacea King 1346

LePtaena wisooriensis Lamont&Gilbert 1945
Silurian

Cyphotalosia Carter 1967
Strophalosiacea Schuchert 1913

Cyphotalosia maspnensis Carter 1967
Mississippian

Cyphoterorhynchus Sartenaer 1965
Rhynchonellacea Gray 1848

Uncinulus koraghensis Reed 1922
Devonian

Cyrolexis Grant 1965
Stenoscismatacea nehlert 1887

Cyrolexis haguei Grant 1965
Permian

Cyrtalosia Termier&Termier 1970
Strophalosiacea Schuchert 1913

Cyrtalosia circinata Termier&Termier 1974
Permian

Cyrtella Fredericks 1924
Spiriferacea King 1846

Cyrtia kulikiana Fredericks 1916
Permian

Cyrtia palman 1828
Cyrtiacea Fredericks 1924

Anomites exporrectus Wahlenberg 1821
Silurian-Devonian

Cyrtina Davidson 1858
Suessiacea Waagen 1883

Calceola heteroclita Defrance 1828
Silurian-Mississippian

Cyrtinaella Fredericks 1916
Suessiacea Waagen 1885

Cyrtina biplicata Hall 1857
Devonian

Cyrttnaetlina Credericks 1926
Suessiacea Waagen 1883

Cyrtia acutirostris Shumard 1855
Silurian-Mississippian

Cyrtinopsis Scunin 1896
Spiriferacea King 1846

Spirifer undosus Schnur 1853
Devonian

Cyrtlopsis Grabau 1923
Spirlferacea vino 1846

Cyrtiopsis davidsoni Grabau 1931
Devonian

Cyrtoniscus Poucot&Harper 1968
Chonetacea Rronn 1862

Chonetes nectus Clarke 1907
Devonian

Cyrtonotella Schuchert&Cooper 1931
Orthacea Woodward 1852

Orthis semicircularis Eichwald 1829
Ordovician

Cyrtospirifer Naliskin 1924
Spiriferacea King 1846

Spirifer verneuili Murchison 1340
nevonian-Mississippian

Cyrtothyris Middlemiss 1959
Terebratulacea Gray 1840

Terehratula depressa Watker 1868
Cretaceous

Dactylogonia Ulrich&Cooper 1942
Strophomenacea King 1846

Dactylogonia geniculata Utrich&Cooper 1942
Ordovician

Dactytotreta Rowell&Henderson 1978
Acrotretacea Schuchert 1893

Dactytotreta rudunca Rowell&Henderson 1978
Cambrian

Daghanirhynchia Muir-Wood 1935
Phynchonellacea Gray 1848

naghanirhynchia daghaniensis Muir-Wood 1935
Jurassic

Dagnachonetes Afanasjeva 1978
Chonetacea Pronn 1862

Dagnachonetes caucas ius Afanasjeva 1973
Devonian

Dalaia Plodowski 1968
Reticulariacea Waagen 1883

Dalaia tardiplicata Plodowski 1968
Permian

Dalejina Havlicek 1953
Enteletacea Waagen 1884

Dalejina hanusi Havlicek 1953
Devonian

Datejodiscus Haslicek 1961
Ptectambonitacea Jones 1928

Strophomena comitans Barrande 1879
Devonian

Daterhynchus Rai 1978
Rhynchonellacea Gray 1848

Daterhynchus dingshanlingensis Bai 1978
Devonian

Dalinuria Lee&Gu 1976
Productacea Gray 1840

Dalinuria liaoningensis Lee&Gu 1976
Permian

Dalligas Steinich 1968
Terebratellacea King 1850

Dalligas nobilis Steinich 1968
Cretaceous

Dallina Reecher 1893
Terebratettacea King 1350

Terebratuta septigera Losen 1846
Tertiary-Recent

Dallinella Thomson 1915
Terebrateltacea King 1850

Terebratalla obsoleta Peecher 1893
Tertiary-Recent

Dallithyris Muir-Wood 1959
Terebratutacea Gray 1840

Dallithyris murrayi Muir-Wood 1959
Tertiary-Recent

Datmanetta Hall&Clarke 1892
Entetetacea Waagen 1884

Orthis testudinaria Saltan 1828
Ordovician-Silurian

Dalmanettopsts Khatfin 1943
Enteletacea Waagen 1884

Dalmanettopsis septiger Khatfin 1948
Devonian

Danella Pajaud 1966
Thecideacea Gray 1847

Danella fragilis Pajaud 1966
Cretaceous

Danocrania Pnsenkrantz 1964
Craniacea Menke 1828

franja tubercul ata Nitsson 1827
Tertiary

Darvasia Licharew 1934
Spiriferacea King 1846

Darvasia edetsteini Licharew 1934
Permian

Dasyalosia Muir-Wood&Cooper 1960
Strophalosiacea Schuchert 1913

Spondylus goldfussi Munster 1839
Permian

Dasysaria Cooper&Grant 1959
Prodnctacea Gray 1849

Dasysaria undutata Cooper&Grant 1969
Permian

Datandia Yang 1977
Productacea Gray 1840

Datangia tuzhaiensis Ni 1977
Mississippian

Davidsonella Munier-Chalmas 1880
Thecideacea Gray 1840

Thecidea sinuata neslonochamps 1853
Jurassic

Davidsonia Pouchard 1849
Davidsoniacea King 1850

Davidsonia verneuili Bouchard 1849
Devonian

Davidsoniatrypa Lenz 1968
Atrypacea Gill 1871

Davidsoniatrypa johnsoni Lenz 1968
Devonian

Davidsonina Schuchert&LeVene 1929
Suessiacea Waagen 1883

Spirifera septosa Phillips 1836
Mississippian

Daviesietla Waagen 1884
Chonetacea Prono 1862

Productus ttangoltensis Davidson 1863
MiSOSSipplan

Davoustia Rachehoeuf 1976
Chonetacea Bronn 1862

Chonetes davousti Oehlert 1887
Devonian

Davsonelloides Boucot&Harper 1958
Chonetacea Brano 1862

Chonetes canadensls Billings 1874
Devonian

Dayia navidson 1881
Dayiacea Waagen 1883

Terehratula navicula Sowerty 1839
Silurian-Devonian

Dearbornia Walcott 1908
Acrotretacea Schuchert 1893

Dearbornia clarki Walcott 1908
Cambrian

Decoropuonax Havlicek 1969
Rhynchonellacea Gray 1848

Terebratula herenice narrande 1847
Silurian

Decurtetta Gaetani 1966
Rhynchonettacea Gray 1848

Terebratuta decurtata Girard 1843
Triassic

Dedzetina Havlicek 1950
Fntetetacea Waagen 1884

Parmorthis macrostomoides Havlicek 1950
Ordovician

Delepinea Muir-Wood 1962
Chonetacea Bronn 1862

Productus comoides Sowerby 1822
Mississipoian

Dettachania WaterhouSe 1971
Athyridacea McCoy 1844

Dettachania acanthatia Waterhouse 1971
Pennsylvanian

Deltarina Cooper&Grant 1976
Rhynchonellacea Gray 1848

Deltarina magnicostata Cooper&Grant 1976
Permian

Deltatreta Utrich 1926
Clitambonitacea Winchell&Schuchert 1893

Deltatreta fillistriata Butts 1926
Ordovician

Delthyris Dalman 1828
Spiriferacea King 1846

Delthyris elevata Dalman 1828
Silurian-Devonian

Demonedys Grant 1976
Chonetacea Bronn 1862

Demonedys fastigiata Grant 1976
Permian

Denticuliphoria Licharew 1956
Rhynchonettacea Gray 1848

Denticuliphoria rara Licharew 1956
Permian

Deothossia Gatinaud 1949
Spiriferacea King 1846

Spirifer anossofioides Grabau 1931
Devonian

Derbyaeconcha Licharew 1934
Davidsoniacea King 1850

Derbyia anomata Licharew 1932
Permian

Derbyetla Grabau 1931
Strophatosiacea Schuchert 1913

Derbyetta bureri Grabau 1931
Permian

Derbyia Waagen 1884
Derbyiacea Stehli 1954

Derbyia reoutaris Waagen 1884
Carboniferous-Permian

Derhyina Clarke 1913
Stringoceohalacea King 1850

Notothyris smithi Derby 1890
Devonian

Derbyoides Dunbar&Condra 1932
Orthotetacea Waagen 1984

Derbyoides nebrascensis Dunhar&Condra 1932
Pennsylvanian-Permian

Dereta Elliott 199
Terebratellacea King 1850

Terebratota pectita Sowerby 1816
Cretaceous

Desatryoa Copper 1964
Atryoacea Gillt 1871

Atryoa desnuamata Sowerby 1840
Devonian

Desmoinesia Hoare 1963
Productacea tray 1840

Productus muricatus Norwood&Pratten 1855
Pennsylvanian

nesmorthis Utrich&Cooper 1956
Orthacea Woodward 1552

Desmorthis nevadensis Ulrich&Cooper 1936
Ordovician

Desquamatia Alekseeva 1960
Atrypacea Gill 1871

Desquamatia khavae Alekseeva 1960
Devonian

Destombesium Havlicek 1971
Enteletacea Waagen 1884

Destombesium pectiniferum Havlicek 1971
Ordovician

hevpmatpsja Muir-wood&Cooper 1960
Stroohalosiacea Schuchert 1913

nevonalosia wrightorum Muir-Wood&Cooper 1960
Devonian

Devonamohlstroohia Harper&Boucot 1978
Stropheodontacea Caster 1939

Stroohodonta alveata Hall 1863
Devonian

Devonaria Riernat 1966
Chonetacea Prnnn 1867

Chonetes zeuschreri Sobolev 1909
Devonian

Devonochonetes Muir-Wood 1962
Chonetacea Bronn 1862

Chonetes coronatus Hall 1857
Devonian

Devonogypa Havlicek 1951
Pentameracea McCoy 1944

Devonogypa soinultosa Havlicek 1951
Devonian

Devonoproductus Stainhrook 1943
Productacea Gray 1843

Productella walcotti Fenton&Fenton 1924
Devonian

Diabotirhynchia nrot 1963
Phynchonetlacea Gray 1848

Diabotirhynchia hollardi Prot 1963
Silurian

Diambonia Cooper&Kindle 1936
Ptectambonitacea Jones 1928

Plectambonites gibbosa Winchell&Schuchert 1895
Ordovician

Diandongia Pong 1974
Acrotretacea Schchert 1893

Diandongia pista Pong 1974
Cambrian

Diaphetasma Utrich&Cooper 1936
Porambonitacea navidson 1853

Diaphetasma pennsytvanicum Utrich&Cooper 1936
Ordovician

Diaphragmus Girty 1910
Productacea Gray 1840

Productus etegans Norwood&Pratten 1855
Mississippian

Diazoma Durkoop 1970
netthyridacea Philtios 1841

Emanuetta vothynica Ketus 1939
Devonian

Dicamara Hall&Clarke 1893
Athyridacea McCoy 1844

Atrypa plebeia Sowerby 1840
Devonian

Dicamaropsis Amsden 1968
Athyridacea McCoy 1844

Merista parva Thomas 1926
Silurian

Diceltomus Hall 1871
Linaulacea Menke 1878

Lingula polita Hall 1861
Camhrian

hiceromyonia Wang 1949
Enteletacea Waagen 1854

Orthis tersa Sardeson 1892
Ordovician

Dichospirffer Brice 1970
Spiriferacea Kino 1846

Dichospirifer thylakistnides Brice 1970
Devonian

Dichozygopteura Renouf 1972
Athyridacea McCoy 1844

Dichozygopleura chchozygopleura Renouf 1972
Devonian

nicoelosia Kino 1850
Enteletacea Waagen 1454

Anomia biloba LInne 1767
nrdovician—Devonian

Dicoelostrophia Wang 1955
Strophomenacea King 1546

Dicoelostrophia punctatum Wang 1955
Devonian

Dicraniscus Meek 1872
Triplesiacea Schuchert 1913

Dicraniscus ortosi Meek 1572
Silurian

Dicrosta Cooper 1978
Terebratellacra King 1850

Abyssothyris fijiensis Elliott 1960
Tertiary

Dictyoclostoidea Wang&ching 1964
Productacea Gray 1840

Dictyoclostoidea kiangsiensis Wang&Ching 1964
Permian

hictyoclostus Muir-Wond 1930
Productacea Grey 1840

Anomites semireticulatus Martin 1809
Mississippian

Dictyonathyris xu 1978
Athyridacea McCoy 1844

Dictyonathyris lanaensis xu 1978
Triassic

Dictyonella Hall 1868
Eichwaldiacea Schuchert 1893

Atrypa coralifera Hall 1852
Silurian

Dictyonina Cnoper 1942
Paterinacea Schuchert 1893

Trematis pannulus White 1874
Cambrian

Dictyonites Cnoper 1956
Paterinacea Schuchert 1893

nictyonites perforata Cooper 1956
Ordovician

Dictyostrophia Caster 1939
Strophomenacea King 1846

Dictyostrophia cooperi Caster 1939
Devonian

Dictyothyris nouville 1879
Terebratulacea Grey 1843

Terebratulites coarctatus Parkinson 1811
Jurassic

Dictyothyropsis Barczyk 1969
Terebratellacea King 1850

Terebratutites loricatus Schlotheim 1820
Jurassic

Dicystoconcha Termier et al 1974
Lyttoniacea Waagen 1883

Dicystoconcha lapparenti Termier et at 1974
Pennsylvanian—Permlan

Didymetasma Cooper 1956
Pentameracea McCoy 1844

Didymelasma longicrurum Cooper 1956
Ordovician

Didymoparcium Lenz 1977
Dalmanellacea Schuchert 1913

Didymoparcium costata Lenz 1977
Silurian

Didymothyris Pubel&Modzalevskaja 1967
Athyridacea McCoy 1844

Terebratula didyma natman 1828
Silurian

Dielasma King 1559
Dielasmatacea Schuchert 1913

Terebratutites elongatus Schlotheim 1816
Mississippian—Permian

Dielasmella Welter 1911
Dielasmatacea Schuchert 1913

Eunella comoressa Welter 1936
Mississippian

Dielasmina Waagen 1852
Dielasmatacea Schnchert 1913

Dielasmina plicata Waagen 1882
Permian

Dielasmoides Welter 1911
Dielasmatacea Schuchert 1913

Dielasmoides bisinuata Welter 1911
Mississippian

Dierlsma Chino,Sun&Ye 1979
Rhynchonellacea Gray 1848

Dierisma furcatun Ching,Sun&Ye 1979
Triassic

Diestothyris Thomson 1916
Terebratellacea King 1850

Terebratula frontalis Middendorff 1849
Tertiary—Recent

Digitia Gregorio 1930
Lyttoniacea Waagen 1853

Lyttonia anaustata Gregorio 1939
Permian

Dignomia Hall 1872
Lingulacea menke 1828

Lingula alveata Hall 1863
Devonlan

Digoeella Muir—Wood 1934
Zeilleriacea Allan 1940

Terebratula diaona Sowerby 1815
Jurassic

Diholkorhynchia YanciRXu 1966
Rhynchonellacea Gray 1848

Rhynchonella sinensis Koken 1910
Trlassic

Dimegelasma Cooper 1942
Spirlferinacea Davidson 1884

Spirifer neglectus Hall 1858
Mississipoian

Dimerella Zittel 1870
RhynchonellaCea nray 1848

Dimerella guembeli Zittel 1970
Triasslc

Dinapophysia maillieua 1935
Rhynchonellacea Gray 1848

Orthis oaoilio Krantz 1857
Devonian

Dinarella qittner 1892
Dielasmatacea Schuchert 1913

Dinarella haueri Rittner 1892
Trlassic

Dinarispira hagys 1974
Spiriferinacea Davidson 1584

Soiriferina pia aittner 1899
Triassic

Dinobolus Hall 1871
Trimerellacea Davidson&King 1872

Obolus conradi Hall 1868
Silurian

Dinorthis Hall&Clarke 1592
Orthacea Woodward 1552

Orthis pectinella Conrad&Emmons 1842
Ordovician

Dioristella Bittner 1890
Athyridacea McCoy 1844

Terebratula indistincta Reyrich 1862
Triassic

Diorthelasma Cooper 1956
Enteletacea Waacien 1884

Diorthelasma parvum Cooper 1956
Ordoviclan

Diparelasma Ulrichi&Cooper 1936
Orthacea Woodward 1852

hiparelasma typicgm Ulrich&Cooper 1936
Ordovician

Diplanus Stehli 1954
Davidsoniacea King 1850

Streptorhynchus lamellatum King 1931
Permian

Diplonorthis mitchell 1977
Orthacea Woodward 1852

Diplonorthis portlocki Mitchell 1977
Ordovician

Diplospirella Rittner 1890
Athyridacea McCoy 1844

Terebratula wissmanni Munster 1841
Triassic

Diraphora Rell 1941
Orthacea Woodward 1852

Eoorthis bellicostata Walcott 1924
Cambrian

Dirinus McCoy 1844
Uncertain

Dirinus bucklandi McCoy 1544
Carboniferous

Discina Lamarck 1819
Discinacea Kray 1840

Discina ostreoldes Lamarck 1819
Recent

Discinisca Dall 1871
Discinacea Gray 1840

Orbicula lamellosa Broderip 1833
Triassic-Recent

Discinolepis Waagen 1885
Acrotretacea Schuchert 1893

Discinolepis granulata Waagen 1885
Cambrian

Discinopsis Matthew 1892
Acrotretacea Schuchert 1893

Acrotreta gulielmi Matthew 1886
Cambrian

Discomyorthis Johnson 1970
Enteletacea Waagen 1884

Orthis musculosa Hall 1857
Devonian

Discotreta Ulrich&Cooper 1936
Acrotretacea Schuchert 1893

Acrothele levisensis Walcott 1908
Ordovician

Discradisca Stenzel 1964
Discinacea Gray 1840

Orbicula antillarum Orbiany 1845
Recent

Disculina neslongchamps 1884
Terebrarulacea Gray 1843

Terebratula hemisphaerica Sowerby 1926
Jurasslc

Dispiriferina Siblik 1965
Spiriferinacea navidson 1884

Spiriferina davidsoni Deslongchamps 1855
DIrassic

Ditreta Riernat 1973
Acrotretacea Schuchert 1893

D treta dividua glernat 1973
Ordovician

Divaricosta Cooper&Grant 1969
Rhynchonellacea Gray 1848

Divarlcosta sauarrosa Cooper&Grant 1969
Permian

Dmitria Siliachenko 1961
SpIrlferacea King 1846

Spirifer romanowskii Nalivkin 1930
Devonian

Dmitrisptrifer Ljaschenko 1973
Spiriferacea King 1946

Dmitrispirlfer nallvkini Ljaschenko 1973
Devonian

Destrina NikiforovalModzalevskaja 1963
Atrypacea Gill 1971

Destrina gutta Nikiforova et al 1963
Silurian

Doleroides Cooper 1939
Orthacea Woodward 1952

Orthis gibbosa Rillings 1857
Ordovician

Doterorthis Schuchert&Cooper 1931
Orthatea Woodward 1852

Orthis interplicata Foerste 1909
Ordovician-Silurian

Doloresella Sano 1957
Porambonitacea Davidson 1853

Doloresella concentrica Sando 1957
Ordovician

Donella Rotai 1931
Rhynchonellacea Gray 1848

Donella minima Rotai 1931
Mississippian

Dongbaella Ching&Ye 1979
Dielasmatacea Schuchert 1913

Dongbaella planata chinggYe 1979
Mississippian

Dorashamia Sarytcheva 1965
Productacea Gray 1849

Dorashamia abichi Sarytcheva 1965
Pormian

Dorsisinus Sanders 1958
Rhynchonellacea Gray 1848

Centronella louisianensis Welter 1914
Mississipoian

Dorsoplicathyris Almeras 1971
Terebratellacea King 1850

Terebratula dorsoplicata Suess 1856
Jurassti

DorsoscyphuS Roberts 1971
Davidsoniacea King 1950

Dorsoscyohus spinulosus Roberts 1971
Carboniferous

Dorytreta Cooper 1956
Rhynchonellacea Gray 1848

Dorytreta bella Cooper 1956
Ordoviclan

Dotswoodia MmcKellar 1970
Productacea Gray 1840

Whidbornella wyatti McKellar 1970
Devonlan

Douvllina Oehlert 1887
Strophomenacea King 1946

Orthis dutertreiison 1839
Silurian-Devonian

Douvillinaria Stainbrook 1945
Strophomenacea King 1846

Stropheodonta variabilis Calvin 1878
Devonian

Douvillinella Spriestersbach 1925
Strophomenacea King 1845

Strooheodonta filifer Schmidt 1912
Devonian

Douvillinoides HarperkBoucot 1978
Stropheodontacea Caster 1939

Douvillinella crickmayi Pedder 1960
Devonian

Dowhatania Waterhouse&Gupta 1978
Productacea Gray 1840

Productus dowhatensis Diener 1915
Mississippian

Drabodiscina Havlicek 1972
Discinacea Gray 1840

Discina grandis Barrande 1879
Ordovician

Draborthis Marek&Havlicek 1967
Enteletacea Waagen 1391

Drahorthis caelebs Marek&Havlicek 1967
Ordovician

Drabovia Havlicek 1950
Enteletacea Waagen 1884

Orthis redux Barrande 1848
Ordovician

Drabovinella Havlicek 1953
Enteletacea Waagen 1884

Orthis drabovensis Barrande 1879
Ordovician

Dracius Stelnich 1967
Terebratulacea Gray 1843

Dracius carnifex Steinich 1967
Cretaceous

Drahanorhynchus Havlicek 1967
Davidsoniacea King 1150

Drahanorhynchus drahanicus Havlicek 1967
Carboniferous

Drahanostrophia Havlicek 1967
Davidsoniacea King 1150

Drahanostrophia ficneri Havlicek 1967
Devonian

Drepanorhyncha Cooper 1956
Rhynchonellacea Gray 1848

Porambonites ottawaensls Rillincis 1862
Ordovician

Drummuckina Bancroft 1949
Strophomenacea King 1846

Strophomena agrestis Bancrott 1949
Ordovician

Duartea Mendes 1959
Productacea Gray 1843

ProductJs hatesianus Derby 1874
Pennsylvanian

Dubaria Termier 1936
Atrypacea Gill 1371

Dubaria lantenoisi Termier 1936
Silurian-Devonlan

Dubioleptina Havlicek 1967
Plectambonitacea Jones 1928

Strophomena expulsa Barrande 1879
Silurian

Dulankarella Pukavischnikova 1956
Plectambonitacea Jones 1928

Dutankarella magna Rukavischnikova 1956
Ordovician

Dundrythyris Almeras 1971
Terebratulacea Gray 1840

Terebratula perovalis Sowerby 1825
Jurassic

Durranella Percivat 1979
Plectambonitacea Jones 1928

Durranella septata Percival 1979
Ordovician

Duryeelta Boucot 1975
Spiriferacea King 1846

Spirifer marra Hall 1857
Devonian

Dushanirhynchia Wang&Zhu 1979
Rhynchonetlacea Gray 1848

Dushanirhynchia inflata Wang&Zhu 1979
Devonian

Dyoros Stehli 1954
Chonetacea Rronn 1862

Chonetes consanguineus Girty 1929
Permian

Dyschrestia Grant 1976
Productacea Gray 1840

Dyschrestia spodia Grant 1976
Permian

Dyscolia Fischer&Oehlert 1890
Terebratulacea Gray 1840

Terebratulina wyvillei navidson 1878
Tertiary-Recent

Dyscritothyris Cooper 1979
Terebratulacea Gray 1840

Dyscritothyris cuhensis Cooper 1979
Cretaceous

Dysoristus Dell 1944
Siphonotretacea Kutorga 1848

Dysoristus lochmanae Dell 1944
Cambrian

DYticospirifer Johnson 1966
Delthyridacea Phillips 1841

Dyticosoirifer mccolleyensis Johnson 1966
Devonian

Dzieduszyckia Siemiradzki 1909
Athyrisinacea Graba’, 1931

Terebratula kielcensis Roemer 1866
Devonian

Dzirulina Nutsubidze 1945
Terebratulacea Gray 1840

Terebratula dzirulensis Anthula 1899
Cretaceous

Fatonia Hall 1857
Rhynchonellacea Gray 1848

AtrYPa medialis Vanuxem 1842
Devoran

Eatonioides mcLearn 1918
Rhynchonellacea Gray 1848

Eatonioides lamellornatus McLearn 1918
Silurian

Eccentricosta Berdan 1963
Chonetacea Pronn 1862

Chonetes jerseyensis Welter 1903
Silurian-Devonian

Echinalosia Waterhouse 1967
Strophalosiacea Schuchert 1913

Strophalosia maxwelli Waterhouse 1964
Persian

Echinaria Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus semipunctatus Shepard 1838
Pennsylvanian-Permian

Echinauris muir-Wood&Cooper 1960
Productacea Gray 1840

Echinauris lateralts Muir-Wood&Cooper 1960
Permian

Echinirhynchia childs 1969
Rhynchonellacea Gray 1848

Terebratulites senticosus Schlotheim 1820
Jurassic

Echinocoelia Cooper&Williams 1935
Cyrtiacea Fredericks 1924

Echinocoelia ambocoelioides Cooper&Williams 1935
Devonian

Echinocoeliopsis Hamada 1968
Cyrtiacea Fredericks 1924

Echinocoeliopsis sculpta Hamada 1968
Devonian

Echinoconchus Welter 1914
Productacea Gray 1840

Anomites punctatus Martin 1809
Mississippian

Echinospirifer Ljaschenko 1973
Spiriferacea King 1346

Echinospirifer distinctus Ljaschenko 1973
Devonian

Echinosteges Muir-Wood&Cooper 1960
Aulosteqacea Muir-Wood&Cooper 1960

Aulosteges tuberculatus ling 1931
Permian

Ecnomiosa Cooper 1977
Terebratellacea King 1850

Ecnomiosa gerda Cooper 1977
Recent

Ectenoglossa Sinclair 1945
Lingulacea Menke 1828

Lingula lesueuri Rouault 1850
Ordovician

Ectochoristites Campbell 1957
Spiriferacea King 1846

Ectochoristites watts i Campbell 1957
Mississippian

Ectoposia Cooper&Grant 1976
Dielasmatacea Schuchert 1913

Ectoposia wildei Cooper&Grant 1976
Permian

Ectorenssetandia Johnson 1973
Stringocephalacea King 1850

Rensselaeria laevis Meek 1868
Devonian

Ectorhipidtum Boucot&Johnson 1979
Pentameracea McCoy 1944

Conchidium trilobatum Kindle&Breger 1904
Silurian

Fdriosteges Muir-wood&Cooper 1960
Aulosteoacea Muir-wood&Cooper 1963

Edriosteoes multispinosus Muir-Wood&Cooper 1960
Permian

Ehlersella Boucot&Johnson 1966
Pentameracea McCoy 1944

Stricklandinia davidsoni Billings 1868
Silurtan

Fichwaldia Billings 1859
Eichwaldiacea Schuchert 1893

Fichvaldia subtrigonalis Billings 1858
Ordovician

Eifelatrypa Copper 1973
Atrypacea Gill 1871

Atrypa reticularis Kayser 1871
Devonian

Eilotreta Amsden 1968
Triplesiacea Schuchert 1913

Rhynchotreta lenta Thomas 1926
Silurian

Elasmothyris Cooper 1956
Enteletacea Waagen 1884

Elasmothyrts toncinnula Cooper 1956
Ordovician

Elassonia Cooperg&Grant 1976
Phynchonellacea Gray 1848

Elassonia micraria Cooper&Grant 1976
Permian

Elenchus Aleksandrov 1973
Reticulariacea Waagen 1883

Elenchus areatus Aleksandrov 1973
Carboniferous

Eleutherocrania Huene 1899
Craniacea Menke 1828

Eleutherocrania gibberosa Huene 1899
Ordovician-Silurian

Eleutherolomma Crickmay 1950
Spiriferacea King 1946

Eleutherokomma hamiltoni Crickmay 1950
Devonian

Elinoria Cooper&Muir-Wood 1951
Spiriferacea King 1946

Spirtter rectangulus Kutorga 1344
Permian

Elita Fredericks 1918
Reticulartacea waagen 1883

Delthyris fimbrtatus Conrad 1842
Devonian

Eliva Fredericks 1924
Spirtferacea Kino 1846

Spiriter lyra Kutoroa 1944
Permiian

Elivella Fredertcks 1924
Peticulariacea Waagen 1883

Martiniopsis baschkirica Tschernyschew 1902
Perfilan

Elivina Fredericks 1024
Spiriferacea King 1946

Spiri ter tibwtanus Diener 1897
Permian

Flkania Ford 1996
Lingulacea Menke 1879

Obolella desiderata Billings 1862
Cambrian-Ordovictan

Ella Fredericks 1918
Sptriferacea King 1846

martinia simensis Tschernyschew 1902
Permian

Elliottella Stehli 1955
Productacea Sray 1841

Pstlonotus transversalis Stehli 1954
Permian

Elliottina Pajaud 1963
Thecideacea GraY 1843

Thecidea destongchampsi Davidson 1852
Jurassic

Ellipsothyrs Satini 1125
Terebratulacea Gray 1841

Ellipsothyris similis Sahnt 1925
Cretaceous

Elttptoolossa Cooper 1956
Lingulacea menke 1879

Leptobolus ovatis Bassler 1919
Drdovician

ElliDtostrophia Havlicek 1963
Strophomenacea King 1846

Elliptostrophia elliptica Havlicek 1963
Devonian

Elmaria Nalivkin 1947
Stringocephalacea King 1850

Elmaria glabra Nalivkin 1947
Devonian

Etsaella Alichova 1960
Enteletacea Waaaen 1884

Elekkerella bekkeri Posenstein 1943
Ordovician

Elymospirifer Wang 1974
Spiriferacea Sino 1846

Indospirifer kwangsiensis Hou 1959
Devonian

Elythyna Rzonsnitzkaja 1952
Reticulariacea Waagen 1883

Elythyna salairica Rzonsnitzkaja 1952
Devonian

Emanuella Grahau 1923
Cyrtiacea Fredericks 1924

Nucleospira takwanensis Kayser 1883
Devonian

Emeithyris Su 1978
Dielasmatacea Schuchert 1913

Emeithyris longmendongensis su 1978
Triassic

Enallosia Coonergrrant 1976
Cryptonetlacea Thomson 1926

Enallosia rotundovata Cooper&Grant 1976
Permian

Enantiosphen Whidborne 1893
Pentameracea McCoy 1944

Meganteris vicaryi Davidson 1882
Devonlan

Enantiosphenella Johnson 1974
Pentameracea McCoy 1844

Enantiosphenella cybete Johnson 1974
Devonian

Enchondrospirifer Price 1970
Spiriferacea King 1846

Enchondrospirifer qhorensis price 1970
Devonian

Enigmatosia Czarniecki 1969
Strophatosiacea Schuchert 1913

Enigmalosia sarytchevae Czarniecki 1969
Pennsylvanian

Enteletella Licharew 1926
Enteletacea Waarien 1884

Enteletella nikschitchi Licharew 1926
Permian

Enteletes Fischer 1825
Enteletacea waagen 1884

Enteletes glabra Fischer 1839
Pennsylvanian-Permian

Entetetina Schuchert&Cooper 1931
Enteletacea waagen 1494

Enteletes tatesinuatus Waagen 1884
mennsylvanian-Permiar

Enteletoides Stuckenberg 1925
Entetetacea Waagen 1984

Enteletoides rossicus Stuckenberg 1905
Rennsylvanian

Eoamphistrophia Harper&Boucot 1978
Stropheodontacea Caster 1939

zmphistrophia whittardi Cocks 1967
Silurian

Eoanastrophia Nikiforova et al 1973
Camereltacea Hall&Clarke 1894

Eoanastrophia antinuata Nikiforova et al 1973
Ordovician

Eobrachythyris Price 1970
Spiriferacea King 1946

Eobrachythyris proovalis Price 1970
Devonian

Eochonetes Reed 1917
Plectambonitacea Jones 1928

Chonetes advera Reed 1917
Ordovician

Eochoristites Chu 1933
Spiriferacea King 1846

Eochoristites neipentaiensis Chu 1933
Mississippian

Eocoelia Nikiforova 1961
Dayiacea Waagen 1853

Atrypa hemisohaerica Sowerby 1839
Silurian

Eoconcha Cooper 1951
Pillingsellacea Schuchert 1893

Eoconcha austini Cooper 1951
Cambrian

Eoconchidium Rozman 1967
Pentameracea McCoy 1444

Eoconchidium incligiricum Roznan 1967
Ordovician

Eoconutus Cooper 1956
Craniacea Menke 1828

Eoconulus rectanqulatus cooper 1956
Ordovician

Focramatia Williams 1974
Plectambonitacea Jones 1928

Eocramatia dissimulata Williams 1974
Ordovician

Eodallina Elliott 1959
Terebratellacea King 1850

Eodallina peruviana Elliott 1959
Triassic

Eocialmanella Havlicek 1950
Enteletacea Waagen 1884

Orthis socialis Parrande 1879
Ordovician

Eodevonaria Breger 1806
Chonetacea Bronn 1862

Chonetes arcuatus Hall 1857
Devonian

Eodinobolus Powell 1963
Trimerellacea havidsong&;King 1872

Obolellina magnifica Billings 1872
Ordovician

Eoglossinotoechia Havlicek 1959
Rhynchonellacea Gray 1848

Eoglossinotoechia cacuminata Havlicek 1959
Silurian-Devonian

Eogryphus HertleingGrant 1944
Terebratellacea King 1850

Fogryphus tolmani Hertleing&Grant 1944
Tertiary

Eogryphus Hertleing&Grant 1944
Rhynchonellacea Gray 1941

Eogemithiris alexi Hertlein&Grant 1944
Tertiary-Recent

Eohowellella Lopushinskaja 1976
Reticulariacea Waagen 1893

Eomartiniopsis minimus Lopushinskaja 1965
Silurian

Eokarninskia Pzonsnitzkaja 1964
Atrypacea Gill 1871

Karpinskia nalivkini Nikiforova 1937
Silurian

Eokirkidium Khodalevichy&Sapelnikov 1970
Pentameracea McCoy 1844

Eokirkidium jachteljaensis Khodalevich et al 1970
Silurian

Eolacazella Elliott 1953
Thecideacea Gray 1840

Thecidea affinis Bosquet 1860
Cretaceous

Eolissochonetes Hoare 1960
Chonetacea 8ronn 1862

Chonetes laevis Keyes 1883
Pennsylvanian

Eolyttonia Fredericks 1924
Lyttoniacea Waaoen 1933

Oldhamina mira Fredericks 1916
Pennsylvanian-Permian

Eomarqinifera Muir-Wood 1930
Productacea Gray 1841

Productus torgispinus Sowerby 1814
Carboni ferous

Eomarginiferina Prunton 1966
Productacea Gray 1840

Eomarginifera trispina Brunton 1966
Mississippian

Eomartinionsis Sokolskaja 1941
Reticulariacea Waagen 1883

Eomartiniopsis elongata Sokolskaja 1941
Carbonifprous

Eomegastronhia rocks 1967
Strophomenacea King 1846

Megastronhia ethica Cocks 1967
Silurian

Foobolus Matthew 1902
Lingulacea Menke 1928

Obolus trinarilis Matthew 1902
Cambrian-Ordovician

Eoorthis walcott 1908
Orthacea Woodward 1852

Orthis remnicha Winchell 1886
Cambrian

Eoparaphorhynchus Sartenaer 1961
Rhynchonellacea Gray 1848

Eoparaphorhynchus mactareni Sartenaer 1961
Devonian

Eoperegrinella Ager 1964
Rhynchoneltacea Gray 1848

Hallorella crassicostata TermiergTermier 1948
Devonian

Eophotidostrophia Harper et al 1967
Strophomenacea King 1846

Stropheodonta sefinensis Williams 1951
Ordovician-Silurian

Eoplectodonta Kozlowski 1929
Plectambonitacea Jones 1928

Sowerbyetla praecursor Jones 1928
Ordovician-Silurian

Eonlicanoplia noucotgHarper 1968
Chonetacea Proni 1862

Chonetes colliculus Foerste 1909
Silurian

Eoreticularia Nalivkin 1924
Reticulariacea Waagen 1883

Spirifer indifferens Barrande 1847
Devonian

Eorhipidomella Hints 1971
Enteletacea Waagen 1884

Eorhipidomella ovatis Hints 1971
Ordovician

Eoschuchertella Gratsianova 1974
Davidsonlacea king 1950

Eoschuchertella popovi Gratsianova 1974
Devonian

Eoseptaliphoria Ching&Sun 1976
Phynchonellacea Gray 1848

Eoseptaliphoria tulungensis Ching&Sun 1976
Triassic

Eosophragmophora Wang 1974
Enteletacea Waagen 1834

Eosophragmophora sinensis Wang 1974
Devonian

Eosotrematorthis Wang 1955
Billingsellacea Schuchert 1893

Fosotrematorthis sinensis Wang 1955
Ordovician

Eospinatrypa Copper 1973
Atrypacea Gill 1871

Atrypa nodostriata Hall 1852
Devonian

Eospirifer Schuchert 1913
Cyrtiacea Fredericks 1924

Spirifer radiatus Soweroy 1840
Silurian-Devonian

Eospiriferina Grabau 1931
Spiriferacea King 1846

Spiriferina lachrymosa Grabau 1931
Devonian

Eospirigerina Boucot&Johnson 1967
Atrypacel Gill 1371

Atrypa praemarginalis Savage 1913
Ordovician-Silurian

Eostrophalosia Stainbrook 1943
Strophalosiacea Schuchert 1913

Strophalosia rockfordensis Hall&C1arke 1893
Devonian

Eostropheodonta Rancroft 1949
Strophomenacea King 1846

Orthis hirnantensis McCoy 1851
Ordovician-Silurian

Eostrophomena Walcott 1905
Orthacea Woodward 195?

Strophomena elegantula Walcott 1905
Ordovician

Eostrophonella Williams 1950
Strophomenacea king 1346

Strophonella davidsoni Holtedahl 1916
Silurian

Eosyringothyris Stainbrook 1943
Spiriferacea King 1346

Spiri fer aspera Hall 1858
Devonian

Eousella Ovtsharenko 1976
Zeilleriacea Allan 1940

Gusarella moisselevi Pojhariskaja 1968
Jurassic

Ephippelasma rooper 1956
Acrotretacea Schuchert 18393

Ephiopelasma minutum Cooper 1956
OrdovIcian

Epicelia Grant 1972
Strophalosiacea Schuchert 1913

Epicelia episcopiensis Srant 1972
Permian

Epicyrta Deslongchamps 1884
Zeilleriacea Allan 1940

Terebratula eugenii Puch 1850
Jurassic

Epithyris Phillips 1841
Terebratulacea Gray 1840

Terebratula maxillata Sowerby 1823
Jurassic

Epithyroides Xu 1978
Dielasmatacea Schuchert 1913

Epithyroides zhonghuaensis Xu 1978
TriasSic

Epitomyonia Wright 1968
Enteletacea Waagen 1854

Epitomyonia glypha Wright 1968
Ordovician

Equirostra CooperlMuir-Wood 1951
Porambonitacea Davidson 1853

Terebratulites aeouirostris Schlotheim 1820
Ordovician

Erectocephalus Sian 1978
Stringocephalacea King 1850

Frectocephalus trigonus Aran 1978
Devonian

Eremithyris Brugge 1973
Dielasmatacea Schuchert 1913

Eremithyris muhlbergensis Brugge 1973
Permian

Eremotoechia rooper 1956
Ctitambonitacea Winchell&Schochert 1993

Eremotoechia cloudi Cooper 1956
Ordovician

Eremotrema Cooper 1956
Enteletacea waagen 1884

Eremotrema biconvexum Cooper 1956
Ordovician

Ericiatia Muir-Wood&Cooper 1960
Productacea Gray 1842

Rroductus newberryi Hall 1857
Mississipoian

Eridmatus Rranson 1966
Spiriferacea King 1846

Spirifer texanus Meek 1871
Pennsylvanian-Permian

Eridorthis Foerste 1999
Orthacea Woodward 1952

Plectorthis nicktesi Foerste 1909
Ordovician-Siturlan

Erymnaria Cooper 1059
Phynchonellacea Gray 1848

Terebratuta polymorpha Massatongo 1850
Tertiary

Erymnia Cooper 1977
Terebratulacea Gray 1340

Erymnia muralifera Fooper 1977
Recent

Espella Nilova 1965
Cyrtiacea Fredericks 1924

Espelta kazachstanica Nilova 1965
Silurian

Estlandia Schuchert&Cooper 1931
Gonambonitacea Schuchert&Cooper 1931

Orthisina marginata Rahlen 1877
Ordovician

Estonirhynchia Schmidt 1954
Rhynchonetlacea Gray 1848

Sphaerirhynchia estonica Schmidt 1954
Silurian

Etheridoina Oehlert 1857
Productacea Gray 1849

Productus complectens Etheridge 1976
Mississloplan

Etymothyris Cloud 1942
Stringocephalacea Kino 1850

Penssetaerla ovoides Clarke 1907
Devonian

Eucatathis Fischer&Oehtert 1890
Terebratulacea Gray 1R40

Terebratutina murrayi Davidson 1878
Tertlary-Recent

EucharitIna SchmIdt 1955
Rhynchonellacea Gray 1848

Terebratuta eucharis Barrande 1847
Devonian

EudeseLla munler-Chalmas 1890
Thecideacea Gray 1840

Thecidea maYalis Deslongchamps 1853
Jurassic

Eudesia King 1850
Zeilleriacea Allan 1940

Terebratula orbicularis Sowerby 1826
Jurassic

Eudesites Pioult 1966
Cancellothyridacea Thomson 1926

EudesTtes deslongchampsi Rioult 1966
Jurassic

Eudoxina Fredericks 1929
Spirlferacea King 1846

Spirifer medius Lebedev 1912
Mississippian

Euidothyris Ruckman 1917
Terebratutacea Gray 1840

Terebratuta cuides Ruckman 1886
Jurassic

Eumetabotoroechia Sartenaer 1975
Rhynchonettacea Gray 1948

Leiorhynchus huronensis Nicholson 1574
Devonian

Eumetria Hall 1963
Reti lacca Waargen 1883

Retzia vera Hall 1858
Mississippian

Eunella Hall&Clarke 1893
Dielasmatacea Schuchert 1913

Terebratuta sullivanti Hall 1867
Devonian

Euorthisina Havlicek 1950
Uncertain

Orthisina moesta Rarrande 1879
Ordoviclan

Euractinella Pittner 1890
Athyridacea McCoy 1844

Terebratula contraplecta Munster 1841
Triassic

Eurekaspirifer Johnson 1966
Delthyridacea Phittips 1841

Soirifer pinonensis Meek 1870
Devonian

Eurycoloorhynchus Sartenaer 1968
Rhynchonettacea Grey 1848

Pugnax qugnus Schmidt 1941
Devonian

Euryspirifer wedekind 1926
Spiriferacea King 1846

Terebratutites paradokus Schtotheim 1813
Devonian

Eurytatospirifer Gatinaud 1949
Spiriferacea King 1846

Spirifer disjunctus Sowerby 1840
Devonian

Eurythyris Ctoud 1942
Stringoceohalacea King 1850

Oriskania lucerna Schuchert 1913
Devonian

Eurytreta Rowell 1966
Acrotretacea Schuchert 1893

Acrdtreta curvata Walcott 1902
Ordovician

Euxinella Moisseiev 1036
Rhynchonettacea Gray 1848

Euxinetta iatiravantaensis moisseiev 1936
Triassic

Evanescirostrum Sartenaer 1965
Rhynchonettacea Gray 1848

Nudirostra gibbosa McLaren 1954
Devonian

Evenkina Andreeva 1961
Orthacea Woodward 1852

Evenkina anabarensis Andreeva 1961
Ordovician

Evenkinorthis Yadrenkina 1977
Orthacea Woodward 1852

Evenkinorthis duatis Yadrenkina 1977
Ordovician

Evenkorhynchia Pozman 1969
Rhynchonettacea Grey 1848

Rostricettula dichotomlans Rozman 1968
Ordovician

Ekatrypa Copper 1967
Atrypacea nitt 1871

Terebratutites explanatus Schtotheim 1820
Devonian

Excavatorhynchia Jin&Fang 1977
Rhynchonettacea Grey 1848

Rhynchonella renana Rittner 1890
Triassic

Exceptothyris Sucic-Protic 1971
Loboidothyridacea Makridin 1964

Ekceotothyris expressa Sucic-Protic 1971
Jurassic

Faksethyris Asgaard 1971
TerehratuLacea Grey 1840

Terebratula nielseni Asqaard 1971
Tertiary

Falafer Grant 1972
Strophatosiacea Schuchert 1913

Falafer epidetus Grant 1972
Permian

Fallax Atkins 1960
Terebratellacea King 1850

Fallax dalliniformis Atkins 1960
Recent

Fattaxispirifer Su 1976
Reticutariacea Waagen 1883

Spirifer pseudofallax Khalfin 1935
Devonian

Fatsatrypa Havlicek 1956
Atryoacea Gill 1871

Falsatrypa admiranda Havlicek 1956
Devonian

Famatinorthis Levy&flutto 1973
Orthacea Woodward 1852

Famatinorthis turneri Levy&Nullo 1973
Ordovician

Fardenia Lamont 1935
Davidsoniacea King 1850

Fardenia scotica Lamont 1935
Ordovician-Silurian

Fascicosta Stehli 1955
Rhynchonettacea Grey 1848

Rhynchonetla longaeva Girty 1909
Permian

Fascicostetta Schuchert&Cooper 1931
Entetetacea Waagen 1984

Strophomenes gervilii Defrance 1827
Silurian-Pevonian

Fascicutina Cooper 1952
Orthacea Woodward 1452

Orthis desmooleura Meek 1872
Camhrian

Fasci fera Ulrich&Cooper 1942
Enteletacea Waagen 1834

Fascifera subcarinata Ulrich&Cooper 1942
Ordovician

Fascistropheodonta Harper&Roucot 1971
Stropheodontacea Caster 1939

Orthis sedgwicki Archiac&Verneuil 1842
Devonian

Fascizetina Havlicek 1975
Enteletacea Waagen 1884

Orthis gervitlei nehtert 1888
Devonian

Fetinotoechia Havlicek 1961
Rhynchonetlacea Grey 1848

Atryoa astuta Barrande 1879
Silurian-Devonian

Fenestrirostra Cooper 1955
Rhynchonetlacea Gray 1841

Rhynchonetta otacialis Pillings 1862
Silurian

Fenxiangetta Wang 1974
Strophomenacea King 1846

Fenxiangella deltoides liane 1978
Ordovician

Ferganetta Nikiforova 1937
Rhynchonettacea Grey 1848

Ferganella turkestanica Nikiforova 1937
Silurian-Devonian

Ferganoproductus Galitzkaja 1977
Productacea Gray 1843

Productus ferganensis Janischewsky 1918
Mississinoian

Ferrak Havlicek 1975
Orthacea Woodward 1952

Prantlina ootitica Havlicek 1949
Ordovician

Ferrythyris Almeras 1971
Terebratulacea Grey 1943

Terebratula ferryi Destangchamps 1861
Jurassic

Fezzanoglossa Havticel 1973
Lingulacea menke 1329

Fezzanoolossa fezzanica Havlicek 1973
Ordovician

Ffynnonia Neuman&Bates 1978
Orthacea Woodward 1952

Pteurorthis costatus Pates 1968
Ordovician

Fibutistrophia Garcia-Atcalde 1972
Stropheodontacea Caster 1939

Fibutistrophia fibula Garcia-Alcalde 1972
Devonian

Fidespirifer Ljaschenko 1973
Spiriferacea ring 1846

Fidespirifer striatus Ljaschenko 1973
Devonian

Filiconcha near 1959
Productacea Grey 1840

Filiconcha hillae leer 1969
Permian

Fimbrinia Cooper 1972
Productacea Gray 1840

Overtonia ptummeri King 1938
Pennsylvanian-Permian

Fimbriothyris neslongchamps 1884
Zeilleriacea Altar 1940

Fimbriothyris delancei mancelido 1978
Jurassic

Fimbrispirifer rooper 1942
Spiriferacea ring 1946

Spiriter venustus Hall 1860
Devonian

Finkelnburgia Walcott 1905
Orthacea Woodward 1852

Finkelnburgia finkelnburgi Walcott 1905
Cambrian-Ordovician

Fissirhynchia Pearson 1977
Rhynchonellacea Gray 1848

Rhynchonella fissicostata Suess 1854
Triassic-Jurassic

Fissurirostra Orbigny 1847
Terebratellacea ring 1850

Terebratuta recurva Defraice 1828
Cretaceous

Fistulogonites Neuman 1971
Clitambonitacea Winchell&Schuchert 1893

Fistutogonites novaterrensis Neuman 1971
Drdovician

Fitzroyetta Veevers 1959
Rhynchonettacea Grey 1848

Fitzroyella primula Veevers 1959
Devonian

Ftahetlirhynchia Rockman 1917
Rhynchonellacea Gray 1848

Rhynchonella lycettii ravidson 1852
Jorassic

Flabellocyrtia Chorowitz&Termier 1975
Suessiacea Waagen 1853

Flabellocyrtia flabellutum Chorowicz&Termier 1975
Triassic

Flabellothyris Deslongchamps 1884
Zeilteriacea Allan 1940

Terebratuta flabeltum Defrance 1828
Jurassic

Flabettulirostrum Sartenaer 1971
Rhynchonettacea Gray 1848

Uncinutus wolmericus Veevers 1959
Devonian

Fletcherithyris Campbell 1965
Dietasmatacea Schuchert 1913

Terebratula amygdala Dala 1847
Permian

Fletcherithyroides ragys 1977
Dielasmatacea Schuchert 1913

Fletcherithyroides gregarios Dagys 1977
Triassic

Flexaria Muir-Wood&Cooper 1960
Productacea Gray 1843

Productus arkansanus Girty 1910
Mississippian

Ftuctuaria Muir-WoodlCooper 1960
Prodoctacea Gray 1849

Productus undatus Defrance 1826
Mississippian

Fotiomena Havlicek 1952
Strophomenacea King 1846

Strophomena folium Barrande 1879
Ordovician

Fordinia Walcott 1908
Lingulacea menke 1828

Obolus perfectus Walcott 1908
Cambrian

Forma Gregorio 1930
Richthofeniacea Waagen 1883

Forma tipica Gregorio 1930
Permian

Formosarhynchia Seifert 1963
Rhynchonellacea Gray 1848

Formosarhynchia formosa Seifert 1963
Jurassic

Fossatrypa Mizens et al 1979
Atrypacea Gill 1871

Ponctatrypa fossa greivel 1959
Devonian

Foveola Gorjansky 1969
Lingulacea Menke 1828

Foveola maarduensis Gorjansky 1969
Drdovician

Franktinella Lenz 1973
Rhynchonettacea Gray 1848

Franklinelta pedderi Lenz 1973
Devonian

Fredericksia raeckelmann 1931
Reticutariacea Waagen 1883

Spiriferina simensis Tschernyschew 1902
Permian

Frenola Dati 1871
TerebratelLacea King 1850

Frenola jeffreysii nall 1871
Tertiary-Recent

Frenulina Dalt 1895
Terebrateltacea King 1850

Anomia sanguinolenta Gmelin 1792
Recent

Frieleia Dalt 1895
Rhynchonetlacea Gray 1848

Frieleia batti Dati 1895
Recent

Folcriphoria Carts 1974
Entetetacea Waagen 1584

Folcriphoria navarrae Carta 1974
Devonian

Furcirhynchia euckman 1917
Rhynchonellacea Gray 1848

Furcirhynchia furcata Buckman 1917
Triassic-Jorassic

Furcitelta Cooper 1956
Strophomenacea King 1846

Furcitella pticata Cooper 1956
Ordovician-Silurian

Fosella McCoy 1844
Spiriferacea King 1846

Spirifera fusiformis Philtips 1836
Mississippian

Fusiproductus Waterhouse 1975
Prodoctacea Gray 1840

Linoproductus fusiformis Huang 1932
Permian

Fusirhynchia Dagys 1968
Rhynchonellacea Gray 1848

Rhynchonella micropteryx Eichwald 1865
Triassic

Fusispirifer Waterhouse 1966
Spiriferacea King 1846

Spirifer nitiensis Diener 1897
Permian

Gacella Williams 1962
Davidsoniacea King 1850

Gacella insolita Williams 1962
Ordovician

Gacina Stehli 1961
Stringocephalacea King 1850

Gacina moorefieldensis Stehli 1961
Mississippian

Gagrietta Moisselev 1939
Rhynchnnettacea Gray 1848

Dagriella abhasiaensis Moisseiev 1939
Cretaceous

Galateastrophia Harperg&Boucot 1978
Stropheodontacea Caster 1939

Stropheodonta galatea Pillings 1874
Devonian

Gateatella Muir-Wood&Cooper 1960
Productacea Gray 1840

Gateatella gateata Muir-Wood&Cooper 1969
Devonian

Gateatellina Sapetnikov et al 1976
Pentameracea McCoy 1844

Galeatella kajnarensis Saoetnikov et al 1975
Ordovician

Gattiennithyris Pollet 1966
Terebratulacea nray 1840

Terebratuta gattiennei Orbigny 1847
Jurassic

Gamdaella Miloradovich 1947
Uncertain

Gamdaella oluae Miloradovich 1947
Permian

Gamonetes Isaacson 1977
Chonetacea nronn 1867

Damonetes anteloi Isaacson 1977
Devonian

Gamphatosia Stainbrook 1945
Strophomenacea King 1346

Gamphalosia tenuissima Stainbrook 1945
Devonian

Gasconsia Northrop 1939
Uncertain

Gasconsla schuchertl Northrop 1939
Silurian

Gaspesla Clarke 1997
Uncertain

Orthis auretia Rillings 1374
Devonian

Gastrodetoechia Sartenaer 1965
Rhynchoneltacea Gray 1848

Leiorhynchus utahensls Kindle 1908
Devonian

Gefonia Licharew 1936
Dielasmatacea Schuchert 1913

Aulacothyrts cubanica Tschernyschew 1902
Permian

Gegenetta Lee&nu 1976
Davidsoniacea King 1950

Gegenella gegenensis Lee&nu 1976
Permian

Gelidorthldina Havlicek 1974
Orthacea Woodward 1852

Orthis sanctoivanensis Barrande 1879
Silurian

Gelidorthis Havlicek 1968
Orthacea Woodward 1852

Orthis partita Barrande 1379
Ordovician

Gemerithyris Siblik 1977
Zelltertacea Allan 1940

Watdheimia supina Palogh 1940
Triassic

Gemmarcula Elliott 1947
Terebratettacea King issn

Gemmarcula aurea Elliott 1947
Cretaceous

Gemmellaroia Cossmann 1998
Pichthofeniacea Waaoen 1835

Geoarhynchus marii Gemmettaro 1894
Permian

Gemmettarolella Mabuti 1937
Richthofeniacea Waagen 1885

Gemmellaroiella ozawat Nabuti 1937
Permian

Gemmulicosta Waterhouse 1971
Productacea Gray 1840

Gemmulicosta gemma Waterhouse 1971
Pennsylvanian

Genicutifera Muir-Wood&Cooper 1960
Productacea Gray 1840

Avonia boonensis Branson 1938
Mississipoian

Genicutomclearnites Harper&Boucot 1978
Stropheodontacea Caster 1939

mctearnites genicularia Harper&Boucot 1978
Devonian

Georgethyris Minato 1953
Reticulariacea Waagen 1883

Reticularia alexandri George 1932
Mississippian

Geranocephalus Crickmay 1954
Stringocephatacea King 1850

Geranocephalus inopinus Crickmay 1954
Devonian

Gerassimovia Licharew 1956
Rhynchonetlacea Gray 1848

Gerassimovia gefoensis Licharew 1956
Permian

Gerothyris Struve 1970
Reticutariacea Waagen 1883

Spirifer laevigatus Quenstedt 1871
Devonian

Geyeretla Scheltwien 1990
Derbyiacea Stehti 1954

Geyeretla qemmettaroi Scheltwien 1900
Pennsyvanan-Permian

Gibberostrophia Harper&Boucot 1978
Stropheodontacea Caster 1939

Stropheodonta gibbera Amsden 1958
Devonian

Gibbirhynchia Ruckman 1917
Rhynchonetlacea Gray 1848

Gibbirhynchia gibbosa Ruckman 1917
Jurassic

Gibbithyris Sahni 1925
Terebratulacea nray 1349

Gibbithyris gibba Sahni 1925
Cretaceous

Gibbochonetes Aisenverq 1971
Chonetacea Bronn 1862

Delepinea fornicutata Aisenverg 1971
Pennsylvanian

Gibbospirifer Waterhouse 1971
Spiriferacea King 1846

Gibbospirifer ettrainensis Waterhouse 1971
Pennsylvanian

Gigantoproductus Prentice 1950
Productacea Gray 1840

Productus giganteus Sowerby 1822
Mississipoian

Gigantorhynchus Sapelnikov&Malygina 1977
Rhynchonettacea Gray 1848

Gigantorhynchus duolus Sapetnikov et al 1977
Devonian

Gigantothyris Seifert 1963
Terehratutacea Gray 1849

Giciantothyris gigantea Seifert 1963
Jurassic

Gittedia Stehli 1961
Dietasmatacea Schuchert 1913

Terebratuta cymbaeformis morris 1145
Permian

Giraldibetta Havlicek 1977
Orthacea Woodward 1852

Diraldietta bella Bergstrom 1968
Drdovician-Silurian

Giratdietta Bancroft 1949
Orthacea Woodward 1852

Orthis protensa Sowerby 1839
Silurian

Girtasia Gregorio 1930
Strophatosiacea Schuchert 1913

Strophatosia superelegans Gregorio 1930
Permian

Girtyetta Welter 1911
Dielasmatacea Schuchert 1913

Harttina indianensis Girty 1908
Mississippian

Gisitina Steinich 1963
Terebratulacea Gray 1840

Terebratutina gisii Roemer 1841
Cretaceous

Gjetispinifera Ivanova 1975
Spiriferinacea Davidson 1884

Gjelispinifera gerasimovi Ivanova 1975
Pennsylvanian

Glabrichonetina Waterhouse 1978
Chonetacea Bronn 1362

Glabrichonetina kuwaensis Waterhouse 1978
Permian

Glaciarcula Flliott 1956
Terebratettacea King 1850

Terebratella spitzbergensis Davidson 1852
Recent

Gladiostrophia Havlicek 1967
Strophomenacea Kirg 1846

Leptaena verneuiti Rarrande 1848
Devonian

Glassa Davidson 1881
Atrypacea Gitt 1871

Atrypa obovata Sowerby 1839
Silurian-Devonian

Gtassina Hall&Clarke 1993
Athyridacea McCoy 1844

Terebratuta laeviuscula Sowerby 1839
Silurian

Glazewskia Pajaud 1964
Thecijeacea Gray 1843

Gtazewskia demarcoui Pajaud 1964
Tertjary

Glendonia McClung&Armstrong 1978
Martiniacea Waagen 1993

Glendonia ulladullensis McClung&Armstrong 1978
Permian

Globietta Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus hemisphaerium Kutorga 1844
Permian

Globirhynchia Ruckman 1917
Rhynchoneltacea Gray 1848

Rhynchonella subobsoleta Davidson 1852
Jurassic

Globispirifer Tachibana 1964
Spiriferacea King 1846

Spirifer nagasakensis Tachibana 1956
Mississippian

Globithyris Cloud 1942
Stringoceohalacea King 1850

Rensselaeria callida Clarke 1907
Devonian

Globosobucina Waterhouse&Plyasin 1970
Richthofeniacea Waagen 1985

Globosobucina scopae Waterhouse&Piyasin 1970
Permian

Globosochonetes Rrunton 1968
Chonetacea Bronn 1862

GlobaSochonetes parseptus Brunton 1961
Mississippian

Giosselta Cooper 1956
Lingulacea Wenke 1828

Gtossetta papiltosa Cooper 1956
Ordovician

Glosseudesia Lobatscheva 1974
Terebratettacea King 1850

Terebratuta semistriata Defrance 1828
Cretaceous

Gtosshypothyridina Rzonsnitzkaja 1978
Rhynchonettacea Gray 1848

Rhynchonella procuboides Kayser 1871
Devonian

Gtossinotoechia Havlicek 1959
Rhynchonellacpa Gray 1840

Terebratuta henrici Barrande 1847
Devonian

Glossinutina Johnson 1975
Rhynchonettacea Gray 1848

Glossinutina khodalevichi Johnson 1975
Devonian

Glossinutus Schmidt 1942
Rhynchoneltacea Gray 1848

Rhynchonetta adolphi Barrande 1879
Devonian

Glossoteptaena Havlicek 1967
Strophomenacea King 1846

Strophomena emarginata Barrande 1879
Silurian

Gtossorthis Opik 1933
Orthacea Woodward 1852

Glossorthis rateos Opik 1930
Ordovician

Glossothyropsis Girty 1934
Cryptonettacea Thomson 1926

Cryptacanthia robusta Girty 1934
Permian

Gtottidia hall 1870
Lingulacea menke 1828

Lingula atbida Hinds 1845
Tertiary—Recent

Gtyptacrothete Termier&Termler 1974
Acrotretacea Schuthert 1993

Glyptacrothele courtessotei Termier&Termier 1974
Cambrian

Glyotambonites Cooper 1956
Plectambonitacea Jones 1928

Glyptambonites musculosus Cooper 1956
Ordovician

Glypterina Boucot 1970
Orthacea Woodward 1952

Plychopteurella rectanoutata Cooper 1956
Ordovician

Glyptias Walcott 1901
Acrotretacea Schuchert 1893

Lingua favosa Linnarsson 1869
Cambrian

Glyptoglossella Cooper 1960
Lingulacea Menke 1828

GlYOtoglossa cavellosa Cooper 1956
Ordovician

Glyptomena Cooper 1956
Strophomenacea King 1846

Glyptomena scutpturata Cooper 1956
Ordovician

Glyptoria Cooper 1976
Protorthacea Cnoper 1976

Glyptoria glypta Cooper 1976
Cambrian

GlYPtorthis Foerste 1914
Orthacea Woodward 1852

Orthis insculpta Hall 1847
Ordovician-Silurian

Glyptospirifer Hou&Xian 1975
Spiriferacea King 1846

Spirifer chui Grabau 1931
Devonian

Glyptostenes Cooper&Grant 1975
Aolostegacea Moir-Wood&Cooper 1960

GlyPtosteges intricatus Cooper&Grant 1975
Permian

Glyptotrophia Utrich&Cooper 1936
Porambonitacea Davidson 1853

Glyptotrophia imbricata Utrich&Cooper 1936
Ordovician

Gmelinmagas Marinetarena 1964
Terebratellacea Kinn 1850

Terebratetta dorsata Ortmann 1902
Tertiary

Gnathorhynchia Buckman 1917
Rhynchonellacea Gray 1848

Rhynchonella liostraca Buckman 1886
Jurassic

Goleomixa Grant 1976
Stenoscismatacea Oehlert 1887

Goleomixa acymata Grant 1976
Permian

Gonambonites Pander 1830
Gonambonitacea Schuchert&Cooper 1931

Gonambonites latus Pander 1830
Ordovician

Gondolina Ching&Liao 1966
Productacea Gray 1840

Gondolina weiningensis Ching&Liao 1966
Carboniferous

Goniarina Cooperg&Grant 1969
Orthotetacea Waagen 1884

Goniarina pyelodes Cooper&Grant 1969
Permian

Goniocoelia Hall 1861
Athyridacea McCoy 1844

Goniocoelia uniangulata Hall 1861
Devonian

Goniophoria Janischewsky 1910
Rhynchonellacea Gray 1848

Goniophoria monstrosa Janischewsky 1910
Mississinoian-Permian

Goniorhynchia Ruckman 1917
Rhynchonettacea Gray 1848

Goniorhynchia goniaea Buckman 1917
Jurassic

Goniothyris Ruckman 1917
Terebratulacea Gray 1940

Terebratula gravida Szajnocha 1881
Jurassic

Goniotrema Ulrich&Cooper 1936
Plectambonitacea Jones 1928

Goniotrema perolexum Ulrich&Cooper 1936
Ordovician

Gorgostrophia Bavlicek 1967
Strophomenacea ring 1846

Leptaena neutra Barrande 1848
Devonian

Gotatrypa Struve 1966
Atrypacea Gill 1871

Atrypa hedei Struve 1966
Silurian

Grabauellina Licharew 1934
Davidsoniacea King 1850

Derbyia mongolica Grabau 1931
Carboniferous-Permian

Grabauicyrtiopsis Gatinaud 1949
Spiriferacea King 1846

Cyrtiopsis graciosa Graoau 1923
Devonian

Grabauispirifer Gatinaud 1949
Spiriferacea King 1846

Spirifer archiaciformis Grabau 1931
Devonian-Mississippian

Graclanella Johnson&Roucot 1967
Atrypacea Gill 1871

Graciaretta lissumbra Johnson&Roucot 1967
Silurian

Gracitotoechla Baranov 1977
Rhynchonettacea Gray 1848

Gracitotoechia sinuata Baranov 1977
Devonian

Grammetaria Cooper 1959
Rhynchonellacea Gray 1848

Remithyris hartschi Dall 1920
Recent

Grammorhynchus Roberts 1971
Rhynchoneltacea Gray 1848

Camarotoechia eganensis Veevers 1959
Mississippian

Grandaurispina Muir-Wood&Cooper 1960
Productacea Gray 1840

Grandaurispina kingorum Muir-Wood&Cooper 1960
Permian

Grandirhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Grandirhynchia grandis Buckman 1917
Jurassic

Grandispirifer Yan 1959
Spiriferacea King 1846

Grandispirifer mylkensis Yan 1959
Mississippian

Grantonla Brown 1953
Spiriferacea King 1846

Grantonia hobartensis Brown 1953
Permian

Granutirhynchia Buckman 1917
Rhynchonettacea Gray 1848

Rhynchonella granutata Upton 1905
Jurassic

Grasirhyrchia Owen 1965
Rhynchonettacea Gray 1848

Rhynchonella grasiana Orbigny 1848
Cretaceous

Grayina Roucot 1975
Porambonitacea Davidson 1853

Anastrophia magnifica Kozlowski 1929
Silurian

Greenfieldia Grabau 1910
Athyridacea McCoy 1844

Greenfieldia whitfietdi Grabau 1910
Silurian

Greenockia Rrown 1952
Rhynchonettacea Gray 1848

Greenockia snaringensis Brown 1952
Mississippian

Grorudia Spjeldnaes 1957
Plectamhonitacea Jones 1978

Grorudia grorudi Spjeldnaes 1957
Ordovician

Gruenewaldtia Tschernyschew 1885
AtrYPacea Gill 1871

Terebratuta tatilinquis Schnur 1851
Devonian

Grumantia Ustritsky 1963
Davidsoniacea King 1850

5trentorhynchus kempei Andersson 1914
Permian

Gryphus Megerte 1811
Terebratutacea Gray 1843

Anomia vitrea Porri 1978
Tertiary—Recent

Guangshunia Xian 1978
Spirlferacea King 1846

Guangshunia pagodifomis Xian 1978
Devonian

Guargxiispirifer Xian 1978
Spiriferacea King 1846

Guanqxiispirifer suhaequatus Xian 1978
Devonian

Gubleria Termier&Termier 1960
Lyttoniacea Waagen 1883

Gubleria disjuncta Termier&Termier 1960
Permian

Guicyrtia Wang&Zhu 1979
Cyrtiacea Fredericks 1924

Guicyrtja trianqulata Wang&Zhu 1979
Devonian

Guizhouella Yang 1978
Productacea Gray 1840

Guizhouella quithouensis Yang 1978
Mississippian

Gunnarella Spjeldnaes 1957
Strophnmenacea King 1846

Strophomena delta Spjeldnaes 1957
Ondovician

Gunninoblandella Percivat 1979
Plectambonitacea Jones 1928

Gunningbtandella resupinata Percivat 1979
Ordovician

Gusarella Prosorovskaja 1962
Zeilleriacea Allan 1940

Zeilleria qusarensis Moisseiev 1944
Jurassic

Guseriplia Dagys 1963
Spiriferinacea Davidson 1884

Guseriplia multicostata Dagys 1963
Triassic

Guttasella Neuman 1977
Plectambonitacea Jones 1928

Guttasella Tutta Neuman 1977
Ordovician

Gwynia King 1859
Terebratellacea King 1850

Terebratula capsula Jeffreys 1859
Recent

Gypidula Hall 1867
Pentameracea McCoy 1844

Gypidula typicalis Amsden 1953
Silurian-Devonian

Gypidulella Khodalevich&Hreivel 1959
Pentameracea McCoy 1844

Gypidulella pennatula Khodalevich&Berelvel 1959
hevonian

Gypidulina Rzonsnitzkaja 1956
Pentameracea McCoy 1844

Pentamerus optatus garrande 1847
Devonian

Gypospirifer Cooper&Grant 1976
Spiriferacea King 1846

Gypospirifer nelsoni Cooper&Grant 1976
Permian

Gyrosoria Cooper 1973
Cancellothyridacea Thomson 1926

Terebratulites gracilis Schtotheim 1813
Cretaceous

Gyrothyris Thomson 1914
Terebratellacea King 1850

Gyrothyris mawsoni Thomson 1918
Tertiary-Pecent

Hadrorhynchia McLaren 1961
Phynchonetlacea Gray 1848

Pugnoldes sandersoni Warren 1944
Devonian

Hadrotreta Powell 1966
Acrotretacea Schuchert 1893

Acrotreta pr maaea Walcott 1902
Cambrian

Hadyrhyncha Havlicek 1979
Rhynchonellacea Gray 1848

Hadyrhyncha hadyensis Havlicek 1979
Devonian

Haqabirhynchia Jefferies 1961
Rhynchonellacea Gray 1848

Hagabirhynchia arabica Jefferies 1961
Triassic

Hallina Winchell&Schuchert 1892
Atrypacea Gill 1871

Hallina saffordi winchell&Schuchert 1892
Ordovictan

Halorella Pittner 1884
Rhynchonellacea Gray 1848

Rhynchonella amphitoma Pronn 1932
Triassic

Halorellina Tu 1978
Rhynchonellacea Gray 1848

Halorellina zhonghuaensis Tu 1978
Triassic

Halorelloidea Ager 1960
Rhynchonellacea Gray 1848

Halorella rectifrons Bittner 1884
Triassic

Hamburgia Sellen 1911
Dielasmatacea Schuchert 1913

Hamburgia typa Welter 1911
Devonian-Mississippian

Hamletella Hayasaka 1953
Davidsoniacea King 1850

Streotorhynchus altus Hamlet 1928
Permian

Hamlingella Reed 1943
Productacea Gray 1840

Productella goergesi Paeckelmann 1931
Devonian-Mississippian

Hamptonina Pollier 1910
Terebratellacea King 1850

Terebratella buckmani Moore 186O
Jurassic

Hanaeproductus Ficnerl&Havlicek 1978
Productacea Gray 1840

Productus rittbergensis Ouenstedt 1871
Devonian

Hansotreta Krause&Rowell 1975
Acrotretacea Schuchert 1893

Hansotreta acrobela Krausell&Rowell 1975
Ordovician

Hanusitrypa Havticek 1967
Atrypacea Gill 1871

Hanusitrypa hanusi Havticek 1967
Devonian

Haptospirifer Lee&Gu 1976
Spiriferacea King 1846

Haplospirifer typicus lee&Gu 1976
Permian

Harknesselta Reed 1917
Entetetacea Waagen 1984

Orthis vespertitio Sowerby 1839
Ordovician

Harpidium Kirk 1925
Pentameracea McCoy 1944

Haroidium insignis Kirk 1125
Siliurian

Harringtonlna Boucot 1972
Daylacea Waagen 1883

Leptocoelia acutipl cata Kayser 1897
Silurian

Harttella Pett 1929
Dietasmatacea Schuchert 1913

Harttetla parva Bell 1929
Mississippian

Harttina Halt&Clarke 1993
Stringocephatacea King 1853

Centronetla anna Hartt 1878
Mississippian

Havticekia Boucot 1963
Cyrtiacea Fredericks 1924

Spirifer secans Rarrande 1848
Siturian-Devonian

Haydenetta Peed 1944
Productacea Gray 1943

Productus kiangsiensis Kayser 1883
Permian

Haydenoides Chas 1877
Productacea Gray 1843

Haydenoides orientatis Piran 1977
Permian

Hebertetla Hall&Ctarke 1892
Orthacea Woodward 152

Orthis sinuata Hall 1847
Ordovician

Hebetoechia Havticek 1959
Rhynchonellacea Gray 1848

Terebratula bebe Harrande 1847
Siturian-Devonian

Hedeina Poucot 1957
Spiriferacea King 1846

Anomla crispa Linne 1958
Silurian

Hedstroemina Bancroft 1929
Strnphomenacea King 1846

Hedstroemina fragitis Pancroft 1929
Ordovician

Heimia Haas 1890
Terebratulacea Gray 1845

Terebratuta mayeri Choffat 1883
Jurassic

Hetaspls Imbrie 1959
Productacea Gray 1949

Hetaspls turna Imbrie 1959
Devonian

Helenathyris Atekseeva 1969
Athyridacea McCoy 1E44

Helenathyris piana Atekseeva 1969
Devonian

Helmerseria Pander 1861
Siphonotretacea Kutorga 1848

Slphonotreta ladogenis Zheremezhev 1856
Ordovician

Hetvetetta Owen 1977
Terebratettacea King 1850

Terebratuta arzierensis Loriol 1864
Cretaceous

Hemiteurus Cooper&Grant 1976
Rhynchonellacea Gray 1848

Hemiteurus runcinatus Cooper&Grant 1976
Permian

Hemiptethorhynchos Peetz 1898
Rhynchonellacea Gray 1848

Hemiplethorhynchus fallax Peetz 1998
Mississipplan

Hemiprontes Pander 1833
Ctitambonitacea Winchell&Schuchert 1893

Hemipronites tumida Pander 1830
Ordovician

Hemiptychina Waagen 1882
Dietasmatacea Schuchert 1913

Terebratuta himatayensis Davidson 1862
Permian

Hemithiris Orbigny 1847
Rhynchonellacea Gray 1845

Anomia psittacea Gmelin 1795
Tertiary-Recent

Hemithyropsis Katz 1974
Rhynchonellacea Gray 1848

Hemithyropsis globulosa Katz 1974
Cretaceous

Hemitoechia Nikiforova 1970
Rhynchonellacea Gray 1848

Hemitoechia distincta Nikiforova 1970
Siturian-Devonian

Hercosestria Cooper&Grant 1969
Richthofeniacea Waagen 1885

Hercosestria cribrosa Cooper&Grant 1969
Permian

Hercosia Cooper&Grant 1969
Richthofeniacea Waagen 1885

Richthofenia uddeni Pose 1916
Permian

Hercostroohia Williams 1950
Strophomenacea King 1846

Hercostrophia alpenensis Williams 1953
Devonian

Hercothyris Cooper 1979
Dallinacea Beecher 1893

Hercothyris borroi Cooper 1979
Tertiary

Hesperinia Cooper 1956
Strophomenacea King 1846

Hesperinia kirki Cooper 1956
Ordovician

Hesperithyris Subir 1942
Terehratulacea Gray 1840

Terebratula reoieri Catullo 1827
Jurassic

Hesperomena Cooper 1956
Plectamhonitacea Jones 1978

Hesperomena leptellinoidea Cooper 1956
Ordovician

Hesperonomia Ulrich&Cooper 1936
Orthacea Wondward 1852

Hesneronomia planidorsalis Ulrich&Cooper 1936
Ordovician

Hesperonomiella Ulrich&Cooper 1936
Orthacea Woodward 1852

Protorthis porcias Walcott 1924
Ordovician

Hesperorhynchia Warren 1937
Rhynchonellacea Gray 1848

Hesperorhynchia superba Warren 1937
Cretaceous

Hesperorthis Schuchert&Cooper 1931
Orthacea Woodward 1852

orthis tricenaria Conrad 1843
Ordovician-Silurian

Hesperotroohie Ulrich&Cooper 1936
Porambonitacea Davidson 1853

Hesperotrophia obscura Ulrich&Cooper 1936
Ordovician

Hetera losia King 1938
Strophalosiacea Schuchert 1913

Heteralosia slocomi King 1938
Mississippian-Permian

Heteraria Cooper&Grant 1976
Reticulariacea Waagen 1883

Heteraria blakemorei Cooper&Grant 1976
Permian

Heterelasma Girty 1909
Cryptoneltacea Thomson 1926

Heterelasma shumardianum Girty 1909
Permian

Heterelasmina Licharew 1939
Dielasmatacea Schuchert 1913

Hemiptychina dieneri Gemmellaro 1899
Permian

Heterorthella Harper,Boucot&Walmsley 1969
Enteletacea Waagen 1884

Heterorthella maehli Harper et al 1969
Siturian

Heterorthina nancroft 1928
Enteletacea Waagen 1884

Heterorthina praeculta Rancroft 19211
Ordovician

Heterorthis Hall&Clarke 1892
Enteletacea Waagen 1884

Orthis clytie Hall 1861
Ordovician

Himalairhynchia Ching&Sun 1976
Rhynchonellacea Gray 1848

Himalairhynchia media Ching&Sun 1976
Triassic

Hindetla Davidson 1882
Athyridacea McCoy 15144

Athyris umbonata Rillinas 1862
Silurian

Hipparionix Vanuxem 1842
Davidsonlacea King 1850

Hipparionix proximus Vanuxem 1842
Devonian

Hircinisca Havlicek 1960
Rhynchonellacea Gray 1848

Atrypa hircina Barrande 1879
Silurian

Hirnantia Lamont 1935
Enteletacea Waagen 1854

Orthis sagittifera McCoy 1851
Ordoviciao-Silurian

Hirsutella Cooper&Mokr-Wond 1951
Suessiacea Waagen 1883

Spirifer hirsutus Alberti 1864
Triassic

Hisincierella Henningsmoen 1948
Acrutretacea Schuchert 1893

Atrypa nitens Hisinger 1838
Ordovician

Hispanirhynchia Thomson 1927
Phynchonellacea Gray 1848

Rhynchonella cornea Fischer 1817
Tertiary-Recent

Histosyrinx Massa,Termier&Termier 1974
Syringothyridacea Frederlcks 1926

Histosyrinx vautrini massa et al 1974
Carboniferous

Holcorhynchella Dagys 1974
Rhynchonellacea Gray 1848

Rhynchonella delicatula Pittner 1890
Triassic

Holcorhynchia Puckman 1917
Rhynchonellacea Gray 1848

Rhynchonella standishensis Buckman 1901
Triassic-Jurassic

Holcospirifer Bassett,Cocks&Holland 1976
Spiriferacea King 1846

Spirifer bigugosus McCoy 1846
Silurian

Holcothyrls gockman 1917
Terebratulacea Gray 1840

Holcothyris anqulata Suckrnan 1917
Jurassic

Hollardiella Drot 1966
Orthacea Woodward 1852

Hollardiella akkaensis Drot 1966
Devonian

Holorhynchus Kiaer 1902
Pentameracea McCoy 1844

Holorhynchus giaanteus Kiaer 1902
Ordovician

Holosla Cooper&Grant 1076
Rhynchonellacea Gray 1848

Holosia regularis Cooper&Grant 1976
Permian

Holotricharina Cooper&Grant 1975
Productacea Gray 1840

Holotricharina Hirsuta Cooper&Grant 1975
Permian

Holtedahlina Foerste 1924
Stroohomenacea King 1946

Leptaena sulcata Verneukl 1848
Ordovician

Holynatrypa Havlicek 1973
Atrvioacea Gill 1871

Holynatryipa crucifera Havlicek 1973
Devonian

Holynetes Havlicek&Racheboeuf 1979
Chonetacea Bronn 1862

Holynetes holynensis Havlicek&Racheboeuf 1979
Devonian

Homoeorhynchia guckman 1917
Rhynchonellacea Gray 1848

Terebratula acuta Sowerby 1816
Jurassic

Homoeospira Hall&Clarke 1893
Retziacea Waacken 1883

Rhynchospira evax Hall 1863
Silurian

Homoeospirella Amsden 1968
Petziacea Waagen 1883

Homoeospiretla costatula Amsden 1968
Silurian

Homotreta Bell 1941
Acrotretacea Schuchert 1893

Homotreta interrupta Bell 1941
Cambrian

Hontorkalosia Martinez 1979
Strophalosiacea Schuchert 1913

Hontorialoska uniplicata Martinez 1979
Carboniferous

Horderleyella Bancroft 1928
Enteletacea Waagen 1894

Horderleyella plicata Pancroft 1928
Ordovician

Horridonia Chao 1927
Productacea Gray 1840

Pruductus horridus Sowerby 1822
Permian

Hoskingia Campbell 1965
Dietasmatacea Schuchert 1913

Dietasma trigonopsis Hosking 1933
Permian

Howettella Koztowski 1946
Spiriferacea King 1846

Terebratula crispus Hisinger 1826
Siturian-nevonian

Howellites nancroft 1945
Ente letacea Waagen 1884

Resserelta striata Rancroft 1945
Ordovician

Howittia Talent 1956
Spiriferacea King 1846

Spirlfer howitti Chapman 1905
Devonian

Howseia Logan 1963
Strophatosiacea Schuchert 1913

Productus tatirostratus Howse 1848
Permian

Huenetta Watcott 1908
Porambonitacea Davidson 1853

Syntrophia texana Watcott 1905
Cambrian

Huenellina Schuchert&Cooper 1931
Porambonitacea Davidson 1853

Huenella tripticata Watcott 1924
Cambrian

Hunanoproductus Hou 1965
Productacea Gray 1841

Hunanoproductus hunanensis Hou 1965
Mississippian

Hunanospirifer Tien 1938
Spiriferacea Kino 1846

Spirifer wangi Tien 1938
Devonian

Hungarispira Dagys 1972
Retziacea Waagen 1883

Retzia aracanga Bittner 1212
Triassic

Hungaritheca nagys 1972
Davidsoniacea King 1850

Thecospira andreaei mittner 1900
Triassic

Hustedia Hatt&Clarke 1893
Retziacea Waagen 1883

Terebratuta mormoni Marcou 1858
Mississippian-Permian

Hustedtietta Dalys 1972
Retziacea Waagen 1883

Hustedtietta planicosta Pagys 1972
Triassic

Hyattldina Schuchert 1913
Athyridacea McCoy 1844

Atrypa conclesta Conrad 1842
Ordovician-Silurian

Hyborhynchetta Cooper 1955
Rhynchonettacea Gray 1848

Hyborhynchetla branson, Cooper 1955
Devonian

Hynniphoria Suess 1859
Terebratettacea King 1850

Hynniphoria gtobularis Suess 1859
Jurassic

Hyponeatrypa Struve 1966
Atrypacea Gitt 1971

Atrypa aureotata Struve 1966
Devonian

Hypoosia Cooper&Grant 1974
Orthotetacea Waagen 1884

Hypopsia versuta Cooper&Grant 1974
Permian

Hypothyridina Ruckman 1906
Rhynchonellacea Gray 1848

Atryoa cuboides Sowerby 1840
Devonian

Hypsetoterorhynchus Sartenaer 1971
Rhynchonettacea Gray 1848

Hypseloterorhynchus pennatus Sartenaer 1971
Devonian

Hypsiptycha Wang 1949
Rhynchonettacea Gray 1848

Hypsiptycha hybrida Wang 1949
Ordovician

Hypsomyonia Cooper 1955
Entetetacea Waagen 1884

Hypsomyonia stainbrooki Cooper 1955
Devonian

Hysterolites Schtotheim 1820
Spiriferacea King 1846

Hysterotites hystericus Schtotheim 1820
Devonian

Hystriculina Muir-Wood&Cooper 1960
Productacea Gray 1840

Hystricutina texana Muir-Wood&Cooper 1960
Pennsylvanian-Permian

Iberirhynchia nrot&Westbroek 1966
Rhynchonettacea Gray 1849

Iberirhynchla santatuciensis nrot&Westbroek 1966
Devonian

Iberithyris Kvakhadze 1972
Terebratutacea Gray 1940

Iberithyris rioniensis Kvakhadze 1972
Cretaceous

Icodonta Rell 1941
Paterinacea Schuchert 1893

Icodonta typica Bett 1941
Cambrian

Idioglyptus Northrop 1939
Strophomenacea King 1846

Idioglyptus stigmatus Northrop 1939
Siturian

Idiorthis Mclearn 1924
Enteletacea Waagen 1884

Idiorthis matura McLearn 1924
Siturian

Idiospira Cooper 1956
Atrypacea Gitt 1871

Camerella pander, Bittings 1959
Orlovician-Siturian

Idiostrophia Utrich&Cooper 1936
Porambonitacea Davilson 1853

Idiostrophia perfecta Utrich&Cooper 1936
Ordovician

Theringithyris Levy 1961
Terebrateltacea King 1850

magettania ameghinoi Ihering 1993
Tertiary

Iketta Tjazheva 1972
Uncertain

Iketta numerosa Tjazheva 1972
Devonian

Itmarinia Opik 1934
Ctitambonitacea Winchett&Schuchert 1893

Orthisina sinuata Pahlen 1877
Ordovician

Itmenia Mativkin 1941
Cyrtiacea Fredericks 1924

Itmenia attovae Nativkin 1941
Devonian

Itmenispina Havticek 1959
Cyrtiacea Fredericks 1924

Itmenispina hanaica Havticek 1959
Devonian

Itmospirifer Ljaschenko 1969
Uncertain

Itmospirifer graciosus Ljaschenko 1969
Devonian

Ityinetta Jassjukevitch 1973
Terebratutacea Gray 1840

Ityinella mangyschtakensis Jassjukevitch 1973
Tertiary

Imatrypa Havticek 1977
Atrypacea Gill 1871

Imatrypa infima Havticek 1977
Devonian

Imbrekia Nativkln 1937
Spiriferacea Ying 1846

Spirifer imbrex Hall 1858
Mississippian

Imbricatia Cooper 1952
Porambonitacea Davidson 1853

Imbricatia tamettata Cooper 1952
Ordovician

Imperia Gregorio 1930
Lyttoniacea Waagen 1883

Lyttonia princeps Gregorio 1930
Permian

Imptexina Potetaev 1971
Reticutariacea Waagen 1883

Spirifer imptex Rotai 1931
Pennsytvanian

Inaeguatis Sucic-Protic 1971
Loboidothyridacea Makridin 1964

Inaenuatis dubari Sucic-Protic 1971
Jurassic

Incisius Grant 1976
Productacea Gray 1840

Incisius conci sus Grant 1976
Permian

Independatrypa Copper 1973
Atrypacea Gill 1871

Atrypa independensis Webster 1921
Devonian

Indigla earchatova 1973
Productacea Gray 1840

Indigia itibeica Barchatova 1973
Permian

Indorhynchia Ovtsharenko 1975
Phynchonettacea Gray 1848

Indorhynchia subtrigonalis Ovtsharenko 1975
Jurassic

Indosoirifer Grabau 1931
Spiriferacea ving 1846

Spirifer padaukpinensis Peed 1908
Devonian

Inflatia Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus inflatus McChesney 1860
Mississippian

Ingetarella Camnbett 1959
Peticulariacea Waagen 1883

Ingelarella angulata Campbelt 1959
Permian

Ingria Opik 1930
Plectambonitacea Jones 1928

Orthisina nefedyewi Eichwald 1960
Ordovician

Iniathyris gesnossova 1963
Athyridacea McCoy 1844

Iniathyris topkensis Pesnossova 1963
Mississippian

Innuttella Crickmay 1068
Phynchonellacea Gray 1848

Innuitella innuitana Crickmay 1968
Devonian

Inopinatarcula Flliott 1952
Terebratulacea fray 1840

Trigonosemus acanthodes Etheridge 1913
Cretaceous

Institella Cnoper 1942
Aulosteciacea muir-Wood&Cooper 1960

Productus leonardensis King 1931
Permian

Institifera Muir-Wood&Cooper 1960
Productacea Gray 1849

Products tessellatus Koninck 1847
Mississiooian

Institina Muir-Wood&Cooper 1960
Productacea Gray 1849

Productus marginalis Koninck 1847
Mississinoian

Inversella Opik 1933
Plectambonitacea Jones 1928

Inversetla borealis Opik 1933
Ordovician

Inversithyris Dagys 1968
Terebratulacea Gray 1840

Inversithyris rhomboidalis nagys 1968
Jurassic

Invertrypa Struve 1961
Atryoacea Gill 1871

Spinatrypa ketusiana Struve 1956
Devonian

lotina Cooper&Grant 1976
Phynchonellacea Gray 1849

Iotina minuta Cooper&Grant 1976
Permian

lowatrypa Copper 1973
Atrypacea Gill 1871

Atrypa Dwenensis Webster 1921
Devonian

lphidella Watcott 1905
Paterinacea Schuchert 1893

Iphidea bella Billings 1872
Cambrian

Irboskites Pekker 1924
Davidsoniacea King 1850

Irboskites fixatus gekker 1024
Devonian

Irenothyris Pojariskaja 1966
T ere bratellac ea King 1850

Zeilleria guldaraensis Moisseiev 1944
Jurassic

Ircristella Tjazheva 1972
Phynchonellacea Gray 1848

Irgistella indecora Tjazheva 1972
Devonlan

Irhirea Havticek 1971
Orthacea Woodward 1852

Corineorthis gigantea Termier&Termier 1950
Ordovician

lridistrophia Havlicek 1965
Orthotetacea waagen 1884

Orthis umbetla Barrare 1848
Silurian-Devonian

Irma Gregorio 1930
Lyttoniacea Waagen 1883

Lyttonia biotata Gregorio 1930
Permian

Iru Opik 1934
Clitambonitacea Winchell&Schuchert 1893

Orthisina concava Pahlen 1877
Ordovician

Ishimia Nikitin 1974
Plectambonitacea Jones 1928

Ishimia ishimensis Nikitin 1974
Ordovician

Isjuminetina Makridin 1960
Rhynchpnellacea Gray 1848

Rhynchonetta pseudodecorata Pollier 1917
Jurassic

Ismenia King 1150
Terebratettacea King 1850

Terebratulites pectuncutoides Schlotheim 1120
Jurassic

Isocrania Jaekel 1902
Craniacea menke 1828

Crania egnabergensis Retzius 191
Cretaceous

Isogramma Meekluorthen 1870
Eichwalliacea Schuchert 1893

Chonetes millepunctatus Meek&worthen 1870
Carboni ferous-Permian

Isophragma Cooper 1956
Plectambonitacea Jones 1928

Isophragma ricevittense Cooper 1956
Orlovician

Isopoma Tortey 1934
Rhynchonellacea Gray 1848

Terebratuta hrachyptycta Schnur 1853
Devonian

Isorthis Kozlowski 1929
Fntetetacea Waagen 1984

Datmanella szajnochai Kgztousk, 1979
Siturian-Devonian

Isospinatrypa Struve 1966
Atrypacea Gill 1871

Terebratulltes asper Schlothelm 1813
Devonian

Isovella Eireivel&Breivel 1970
Pentameracea McCoy 1844

Isnvetta regina Breivel&Breivel 1970
Siturian

Israelaria Cooper 1976
Protorthacea Cooper 1976

Israetarla parnesi Cooper 1976
Cambrian

Isumithyris Hatai 1948
Terebratettacea King 1850

Isumithyris kazusaensis Hata, 1948
Tertiary

lubaoraspirifer Gatinaud 1949
Spiriferacea King 1846

Spiri fer wanoleighi Cranau 1931
Devonian

lugrabaspirifer Gatinaud 1949
Spiriferacea ring 1846

Spirifera uhitneyi Hall 1859
Devonian

Ivanothyris Havlicek 1957
Spiriferacea Kin g 1846

Spiri fer gibhosus Barrande 1879
Devonian

Ivanoviella makridin 1955
Rhynchonettacea Cray 1848

Phynchonella atemanica Rottier 1917
Jurassic

lvdellnia Andronov 1961
Pentameracea McCoy 1844

Gypidula ivielensis Khodatevich 1951
Devonian

lwaisoirifer Tachibana 1964
Spiriferacea King 1846

lwaispirifer striatotamettosus Tachihana 1964
Devanan

Jaanussonites Neuman 1977
Gonambonitacea Schuchert&Cooper 1931

Jaanussonites hornel Neuman 1977
Ordovician

Jaffaia Thomson 1927
Terebratellacea King 1850

magasella jaffaensis Plochmann 1910
Recent

Jaisatmeria Sahni 1955
Terebratutacea Gray 1140

Jaisatmeria taytori Sahni 1955
Jurassic

Jakutella Ahramnv 1970
Productacea Cray 1849

Jakutella sarytchevae AOramov 1970
Pennsylvanian

Jakutochonetes Afanasjeva 1977
Chonetacea gronn 1862

Jakutochonetes jakuticus Afanasjeva 1977
Carboni ferous

Jakutoproductus Kaschirzev 1959
Productacea Cray 1849

Marqinifera verchoyanica Fredericks 1931
Permian

Jamesetta Watcott 1905
Orthacea Woodward 1852

Orthis perpasta Pompeckj 1896
Cambrian

Janiceos Frech 1901
Athyridacea McCoy 1844

Athyris peracuta Stache 1878
Permian

Janiomya Havticek 1967
Strophomenacea King 1846

Janiomya paralletomya Havticek 1967
Silurian

Janius Havlicek 1057
Cyrtiacea Fredericks 1924

Spirifer nobilis Barrande 1848
Silurian-Devonian

Japanithyris Thomson 1927
Terebratellacea King 1850

Terebratella marlae Adams 1860
Tertiary-Recent

Jisuina Grahau 1931
Dielasmatacea Schuchert 1913

Jisuina elegantula Grabau 1931
Permian

Jivinetta Havlicek 1949
Orthacea Woodward 1852

Orthis incota Parrande 1879
Ordnvician

Johnsonathyris Savage et al 1978
Athyridacea McCoy 1844

Johnsoratnyris adrianensis Savage et al 1978
Devonian

Jolonlca nall 1920
Terebratettacea King 1850

Campages hedleyi hall 1920
pe cent

Jotvia Sapetnikov 1960
Pentameracea McCoy 1844

Jolvia multiple.a Sapelnikov 1960
Siturian

Juralina Kyansen 1961
Terebratulacea Gray 1840

Juratina procerus Kyansen 1961
Jurassic

Juresania Fredericks 1928
Productacea Gray 1849

Productos jurasanensis Tschernyschew 1902
Pennsylvanian-Permian

Juvavetta Pittner 1888
Dielasmatacea Schuchert 1913

Juvavetla suessi Pittner 1888
Triassic

Juvavetlina Pittner 1896
nielasmatacea Schuchert 1913

Juvavellina kittti gittner 1896
Triassic

Kabanoviella Smirnova 1073
Rhynchonettacea Gray 1848

Rhynchonetla obliterata Lahusen 1874
Cretaceous

Kachathyris Smirnova 1975
Terebratellacea King 195e

Kachathyris privus Smirnova 1975
Cretaceous

Kadratiproductus Gatitzkaja 1977
Productacea Gray 1843

Produc tus kadralensis Gladtchenko 1955
Mississippian

Kafirnigania Katz 1962
Terebratettacea King 1850

Kafirnigania pentangulata Katz 1962
Cretaceous

Kattirhynchia Puckman 1917
Rhynchonettacea Gray 1847

Rhynchonella concinna Davidson 1878
Jurassic

Kamoica Hatai 1936
Terebratellacea King 1850

Jolonica iduensis Hatai 1936
Tertiary

Kaninospirifer Kulikov&Stepanov 1975
Soiriferacea King 1946

Spirifer kaninensis Licharew 1943
Permian

Kansuetta Chao 1923
Productacea Gray 1840

Productus kansuensis Chao 1927
Mississippian

Kaptex Ficner&Havticek 1975
Stringocephalacea King 1850

Kaptex obesissimus Ficner&Havticek 1975
hevonian

Karadagella Babanova 1965
Terebratutarea Gray 1840

Karadagella moisseievi Babanova 1965
Jurassic

Karadagithyris Tchorszhewsky 1974
Loboidothyridacea Makridin 1964

Karadagithyris babanovae Tchorszhewsky 1974
Jurassic

Karakullna Andreeva 1972
Porambonitacea Davidson 1853

Karakulina nana Andreeva 1972
Ordovlcian

Karavankina Ramnvs 1969
Productacea Gray 1843

Karavankina typica Ramos 1969
Permlan

Karlicium Havlicek 1974
Enteletacea Waagen 1884

Karlicium karlicum Havlicek 1974
Orlovician

Karpinskia Tschernyschew 1885
Atrypacea Gill 1871

Karpinskia conjugula Tschernyschew 1885
Devonian

Kasakhstania nesnossova 1968
Spiriferacea King 1846

Kasakhstania mikunovi Pesnossova 1968
Carbonifernus

Kassinella Porisslak 1956
Plectamhonitacea Jones 1928

Kassinella globosa Borissiak 1956
Drdovician

Katastrophomena Cocks 1968
Strophomenacea King 1846

Strophomena anttouata Reed 1917
Stlurlan

Katunla Kulkov 1963
Rhynchonellacea Gray 1248

Katunia subtriqonata Kulkov 1963
Devonian

Kayseretla Hall&Clarke 1892
Enteletacea Waagen 1884

Orthis tenida Schnur 1853
Devonian

Kayseria navidson 1882
Dayiacea Waagen 1883

Orthls lens Phillios 1841
Devonian

Kelusia Mamedov 1978
Cyrtiacea Fredericks 1924

Emanuella volhynica Kelus 1939
Devonian

Keratothyris Tuluweit 1965
leilleriacea Man 1940

Terebratula cor Lamarck 1819
Jurassic

Kerpina Struve 1961
Atrypacea Gill 1871

Kerpina vineta Struve 1961
Devonian

Kestonithyris Satini 1925
Terebratulacea Gray 1840

Kestonithyris inflara Sahni 1925
Cretaceous

Keyserlingia nander 1861
Acrotretacea Schuchert 1293

Orbicula reversa Verneuil 1845
Ordovician

Keyserlingina Tschernyschew 1902
Lyttonlacea Waagen 1883

Keyserlingina schellwieni Tschernyschew 1932
Pennsylvantan-Permian

Khinganospirifer Xu 1976
Spiriferacea King 1846

lucrospirifer paradoxiformis Hou 1959
Devonian

Khodalevichia Boucot&Johnson 1970
Pentameracea McCoy 1844

Srooksina crassa Khodalevich 1939
Silurian

Klaernmena Spjeldnaes 1957
Strophomenacea King 1846

leptaena kjerulfi Holtedahl 1916
Drdovician

Kiangs iella Grabau&Chao 1927
Davidsoniacea King 1950

Orthotetes tingt Grabau 1924
Pennsylvanian-Permian

Kikaithyris Yabefillatai 1941
Terebratellacea King 1850

Pictothyris hanzawai Yabe 1934
Tertiary

Kindleina Savage et al 1978
Rhynchonellacea Gray 1848

Kindleina suemezensis Savage et al 1978
nevonlan

Kinelina Ljaschenko 1969
Strophomenacea King 1846

Kinelina eifelensis Ljaschenko 1969
Devonian

Kinciena Davidson 1852
Terebratellacea King 1850

Terebratula lima Defrance 1828
Cretaceous

Kingenella Pooiel-Parczyk 1968
Terebratellacea King 1850

Kincienella konciieli Popiel-Parczyk 1968
Cretaceous

Kinghiria Litvinovich 1966
Spiriferacea King 1846

Kinghiria prima Litvinovich 1966
Carboni ferous

Kinnella Rergstrom 1968
Ente letacea Waagen 1884

Hirnantia kielanae Temple 1965
Ordovician

Kirkidium Amsden,Roucot&Johnson 1967
Pentameracea McCoy 1844

Pentamerus knightii Sowerby 1813
Silurian

Kirkina Salmon 1942
Strophomenacea Kino 1846

Kirkina millardensis Salmos 1942
Ordovician

Kisilia Nalivkin 1979
Spiriferacea King 1846

Kisilia linguata Nalivkin 1979
Mississiopian

Kitakamithyris Minato 1951
Reticulariacea Waagen 1883

Torynifer tyoanjiensis Minato 1951
Mississippian

Kjaerina gancroft 1929
Strophomenacea King 1846

Kjaerina typa Pancroft 1929
Ordovician

Kjerulfina Rancrolt 1979
Strophomenacea King 1846

Kjerulfina trigonalis aancroft 1929
Ordovician

Klipsteinella Dagys 1974
Suessiacea Waagen 1883

Spirifer calceola Klipstein 1843
Triassic

Kochiproductus nunbar 1955
Productacea Gray 1843

Productus porrectus Kutoraa 1844
Permian

Koeveskallina Dagys 1965
Spiriferinacea navidson 1884

Spiriferina koeveskalyensis Stur 1865
Triassic

Kolhidaella moisseiev 1939
Rhynchonellacea Gray 1848

Kolhidaella kolhidaensis Moisseiev 1939
Cretaceous

Kolymithyris nanys 1965
Zeilleriacea Allan 1940

Zeilleria kolymensis Molsseiev 1937
Triassic

Komispirifer Ljaschenko 1973
Spiriferacea King 1846

Uchtospirifer formosus Ljaschenko 1960
hevonian

Koninckella munier-Chalmas 1880
Koninckinacea Davidson 1853

Leptaena liasina Rouchard 1847
Triassic-Jurassic

Koninckina Suess 1853
Koninckinacea Davidson 1853

Productus leonhardi Wissmann 1841
Triassic

Koninckodonta Pittner 1893
Koninckinacea Davidson 1853

Koninckodonta fuggeri Pittner 1893
Triassic

Konstantia Paiaud 1970
Thecideacea Gray 1840

Konstantia podolica Pajaud 1970
Cretaceous

Kosirium Ficner&Havlicek 1975
Cyrtiacea Fredericks 1924

Kosirium turbulentum Ficner&Havlicek 1975
Devonian

Kotujetla Andreeva 1962
Rillingsellacea Schuchert 1893

Kotuj ella calva Andreeva 1962
Cambrian

Kozlowskia Fredericks 1933
Productacea Gray 1843

Productus capacii Orbigny 1842
Pennsylvanian-Permian

Kozlowskiellina Roucot 1958
Spiriferacea King 1846

Kozlowskiella strawi Roucot 1957
Silurian-Devonian

Kozlowskites Havlicek 1952
Ptectamhonitacea Jones 1928

Strophomena nuncia Rarrande 1879
Ordovician

Kransla Westbroek 1967
Rhynchonellacea Gray 1848

Terebratula parallelepipeda Bronn 1837
Devonian

Kraussina Davidsor 1859
Terebratellacea Kircl 1850

Anomia rubra Pallas 1966
Recen

Krejcigrafella Struve 1978
Davidsoniacea King 1850

Schuchertellopsis krejcigrafi Struve 1978
Devonian

Krotovia Predericks 1928
Productacea Gray 1840

Productus spinutosus Sowerby 1814
Mississippian-Permian

Kueichowella Yang 1978
Productacea Gray 1840

Kueichowetla kueichowensis Yang 1978
Mississippian

Kultervo Opik 1932
Gonambonitacea Schuchert&Cooper 1931

Gonambonites panderi Opik 1930
Ordovician

Kutumbetla Mikiforova 1960
Pentaneracea McCoy 1844

Kulumbella kulumbensis Nikiforova 1960
Silurian

Kumbelta Khodalevich 1975
Pentameracpa McCoy 1844

Kumpella kumhensis Khodalevich 1975
Devonian

Kundatella Aksarina 1978
Uncertain

Kundatella asperocosta Aksarina 1978
Cambrian

Kurakithyris Hatai 1946
Terebrateltacea King 1850

Kurakithyris quantoensis Hatai 1946
Tertiary

Kutchirhynchia nocknan 1917
Rhynchnnellacea Gray 1848

Rhynchonella concinna Kitchin 1900
Jurassic

Kutchithyris Ouckman 1917
Terebratulacea Gray 1843

Terebratula acutipticata Kitchin 1897
Jurassic

Kutorgina Billings 1861
Kutorginacea Schuchert 1893

Ohotella cingulata gillings 1861
Cambrian

Kutorainella Ivanova 1951
Productacea Gray 1840

Kutorginella mosnuensis Ivanova 1951
Pennsylvanian-Permian

Kuvetousia Waterhouse 1968
Productacea Gray 1840

Kuvelousia sphiva Waterhouse 1968
Permian

Kvesanlrhynchla Kvakhadze 1976
Phynchonellacea Gray 1848

Kvesanirhynchia tenuicostata Kvakhaize 1976
Cretaceous

Kwangsia Gratau 1931
Atrypacea Gill 1871

Kwangsia yohl Grabau 1931
Devonian

Kwangsirhynchus Hou&xian 1975
Phynchonellacea Gray 1848

Kwangsirhynchus Liujingensis Hou&Xian 1975
Devonian

Kymatothyris Struve 1970
Peticulariacea Waagen 1883

Kymatothyris kroemmelbeini Struve 1970
Devonian

Kyrtatrypa Struve 1966
Atryoacea Gill 1871

Atrypa cutminlgera Struve 1966
Silurian-Devonian

Labala Licharew 1956
Dielasrmatacea Schuchert 1913

Labaia muirwoodae Licharew 1956
Permian

laballa Moisseiev 1962
Spiriferinacea Davidson 1884

Spiriferina suessi Winkter 1859
Triassic

Labriproductus Cooper&Muir-Wood 1951
Productacea Gray 1840

Productus wortheni Hall 1858
Mississippian

Lacazetla Munier-Chalmas 1880
Thecideacea Gray 1840

Thec idea mediterranea Pisso 1826
Tertiary-Recent

Lachrymula Grabanm 1970
Lingulacea Menke 1828

Lachrymuta inusitata Graham 1970
Carboniferous

Lacunaerhynchia Almeras 1966
Rhynchonettacea Gray 1848

Lacunaerhynchia vergissonensis Atmeras 1966
Jurassic

Lacunarites Opik 1934
Gonambonitacea Schuchert&Cooper 1931

Lacunarites llmatar Opik 1934
Ordovician

lacunites Gorjansky 1969
Paterinacea Schuchert 1893

Lacunites bataschovae Gorjansky 1969
Oriovician

Lacunosetta Wisniewska 1932
Rhynchonettacea Gray 1848

Rhynchonetta arptica Opoel 1866
Jurassic

Ladjia Veevers 1959
Cyrtiacea Fredericks 1924

Ladjia saltica Veevers 1959
hevonian

Ladogia Nalivkin 1941
Rhynchonettacea Gray 1848

Terebratula meyendorfii Verneuit 1845
Devonian

Ladogietta Opik 1934
Ctitambonitacea Winchell&Schuchert 1893

Ladogietta imbricata Opik 1934
Oriovician

Ladogifornix Schmidt 1964
Rhynchonettacea Gray 1848

Terebratula fornicata Schnur 1853
Devonian

Ladogitina Ljaschenko 1973
Rhynchonettacea Gray 1848

Ladogitina rossica Ljaschenko 1973
Devonian

Ladogitinella Ljaschenko 1973
Rhynchonetlacea Gray 1848

Ladogilinetta mutabilis Ljaschenko 1973
Devonian

Ladogioides McLaren 1961
Rhynchonettacea Orar 1848

Ladogioides pax McLaren 1961
hpvonian

Laevicyphomena Cocks 1968
Strophomenacea King 1846

Cyphomena feticiter Cocks 1968
Silunar

Laevigaterhynchia Wisnlewska 1979
Rhynchonetlacea Gray 1848

Terebratula tripticosa Ouenstedt 1832
Jurassic

Laevirhynchia nagys 1974
Pasitiotacea Cooper 1959

Terebratuta tricostata Munster 1841
Triassic

Laevispirifer Ushatinskaia 1977
Cyrtiacea Fredericks 1924

Laevispirifer zhamankonensis Ushatinskaia 1977
Silurian

laevithyris Dagys 1974
Loboidothyridacea Makridin 1964

Lobothyrls rossochae Dagys 1965
Triassic

laioporella Ivanova 1975
Spiriferinacea Davidson 1884

Laioporetta modesta Ivanova 1975
Pennsylvanian

Lakhmina Oehlert 1887
Acrotretacea Schuchert 1893

Davidsonella linguloides Waagen 1885
Cambrian

Lamanskya Moberg&Segerperg 1906
Uncertain

Lamanskya splendens Moberg&Segerberg 1906
Ordovician

lamarckispirifer Satinad 1949
Spiriferacea King 1846

Spirifer hayasakai Grabau 1931
Devonian

Lambdarina Pruntonlehamoion 1974
Rhynchonettacea Gray 1848

Lambdarina manifotdensis nrunton&Champlon 1974
Mississipoian

lamellaprhynchia Purri 1953
Rhynchonettacea Gray 1848

Terebratuta rostriformis Ropmer 1836
Cretaceous

Lametticonchidium Kulkov 1968
Pentameracea McCoy 1844

Lametticonchidium tchergense Kulkov 1968
Siturian

Lamettokoninckina Jin&Fang 1977
Koninckinacea Davidson 1853

lamettokoninckina heningensis Jin&Fang 1977
Triassic

Lamellosia Cooper&Grant 1975
Chonetacea Rronn 1862

Lameltosia lamettosa Cooper&Grant 1975
Permian

Laminata Muir-Wood&Cooper 1960
Productacea Gray 1840

Productetta laminata Kindle 1909
Devonian

Lamnaespina Waterhouse 1976
Spiriferinacea Davidson 1884

Lamnaespina transennata Waterhouse 1976
Permian

Lamnimargus Waterhouse 1975
Productacea Gray 1849

Marginifera himalayensis hiener 1899
Permian

Lancangjiangia Jin&Fang 1977
Spiriferinacea Davidson 1884

Lancangjlangia spinosa Jin&Fang 1977
Trassic

Lanceomyonia Havticek 1960
Rhynchonettacea Gray 1848

Terebratuta tarda Parrande 1847
Silurian

Langella mendes 1961
LIngulacea Menke 1828

Lingula imhituvensjs Oliveira 1930
Pennsylvanian-Permjan

Langkawia Hamada 1969
Rhynchonellacea Gray 1848

Langkawia jonesae Hamada 1969
hevonian-Carboniferous

Laosia Mansuy 1913
Rhynchonettacea Gray 1848

Laosia dussautti Mansuy 1913
Permian

Lanueus Dall 1870
Terebratel lacea King 1850

Terehratuta catifornica Koch 1848
Tertiary-Recent

Larium Gregorio 1930
Uncertain

Larium inventum Gregorio 1930
Permian

Lateratatirostrum Sartenaer 1979
Rhynchonettacea Gray 1848

Lelorhynchus athabascense Kindle 1924
Devonian

Lathamella Liu 1979
Uncertain

Lathamella caecus Liu 1979
Cambrian

Laticrura Cooner 1956
Ente letacea Waagen 1884

Laticrura pionodema Cooper 1956
Ordoviclan

Latiptecus Lee&Gu 1976
Reticulariacea Waagen 1883

Latiplecus typicus Lee&Gu 1976
Permian

latiproductus sarytcheva et al 1977
Productacea Gray 1840

.roductus latissimus Sowerby 1822
Mississippian

Latonotoechia Havlicek 1960
Rhynchonettacea Gray 1848

Terebratuta tetona Barrande 1847
Devonian

Lazutkinia Rzonsnitzkaja 1952
Spiriferacea King 1846

Spirifer mamontovensis Lazutkin 1940
Devonian

Leangella Opik 1933
Ptectambonitacea Jones 1928

Plectambonites scissa Nottedaht 1916
Ordovician-Siturian

Leiochonetes Roberts 1976
Chonetacea Prono 1862

Lelochonetes satisburyensis Roberts 1976
Carboniferous

Leiolepismatina Yang&Xu 1966
Spirlferinacea Davidson 1884

Leiolepismatina semiconuta Yang&Xu 1966
Triassic

Leioproductus Stainbrook 1947
Productacea Gray 1840

Productetta cotoradoensis Kindle 1909
Devonian

Leiorhynchoidea Cloud 1944
Rhynchonettacea Gray 1848

Leiorhynchoidea schucherti Cloud 1944
Mississippian-Permian

Leiorhynchoides novgal 1953
Rhynchonellacea Gray 1848

Leiorhynchus qratianovae nogal 1953
Devonian

Leiorhynchus Hall 1860
Rhynchonellacpa Gray 1848

Orthis quadricostata Vanuxem 1842
neonian-Mississippian

Leioria Cooper 1976
Orthacea Woodward 1852

Leiorla bentori Cooper 1976
Cambrian

Leioseptathyris Wu 1974
Stringocephalacea King 1850

Leioseptathyris modica Wu 1974
Devonian

Lenatoechia Nikiforova 1970
Rhynchonellacea Gray 1848

Camarotoechia plegaos Nikiforova 1961
Silurian-Devonian

Lenorthis Andreeva 1955
Orthacea Woodward 1852

Lenorthis qirardi Andreeva 1955
ordovician

Lenothyris Dagys 1968
Loboldothyridacea Makridin 1964

Lenothyris oerflexus Dagys 1968
Jiorassic

Lepidocrania Cooper&Grant 1974
Craniacea Menke 1878

Lepidocrania tardi spinosa Cooper&Grant 1974
Permian

Lepidocycloides Nlkiforova 1961
Rhynchonellacpa Gray 1848

Lepidocycloides baikiticus Nikiforova 1961
Ordovician

Leoidocyclus Wang 1948
Rhynchonellacea Gray 1848

Lepidocyclus laddi Wang 1949
Ordovician

Lepidoleptaena Havlicek 1963
Strophomenacea King 1846

Strophomena rhomboidalis Barrande 1879
Ordovician

Lepidorhynchia Burri 1956
Rhynchonellacea Gray 1848

Leoidorhynchia dichotoma gurri 1956
Cretaceous

Lepidorthis Wanq 1955
Orthacea Woodward 1852

Lepidorthis typicalis Wang 1955
Ordovician

Lepidospirifer Cooper&Grant 1969
Spirifpracea King 1846

Lepidospirifer angulatus Cooper&Grant 1969
Permian

Lepismatina Wang 1955
Suessiacea Waaaen 1883

Lepismatina hsui Wang 1955
Triassic

Leptaena Calman 1828
Strophomenacea King 1846

Leptaena rugosa Dalman 1828
Ordovician-Mississippian

Leptaenella Fredericks 1918
Strophomenacpa King 1846

Leptaena rhomboidalis Hall&Clarke 1892
Ordovician-Devonian

Leptaenisca peecher 1890
Strophomenacea King 1846

Leptaena concava Hall 1857
Silurian-Devonian

Leptaenoidea Hedstrom 1917
Strophomenacea King 1846

Leotaenoidea silurica Hedstrom 1917
Silrian

Leptaenomendax Garcia-Alcalde&Martinez 1978
Strophomenacea King 1846

Leptaenomendax chaconae Garcia-Alcalde et al 1978
Devonian

Leptaenopoma Marek&Havlicek 1967
strophomenacea King 1846

Leptaenopoma trifidum marek&Havlicek 1967
Ordovician

Leptaenopyxis Havlicek 1963
Strophomenacea King 1846

Leptaena bouei Parrande 1848
Ordovicran

Leptagonia McCoy 1844
Strophomenacea King 1846

Producta analoga Philtios 1836
Mississippian

leptalosia hunbar&Condra 1932
Strophalosiacea Schuchert 1913

Stroohalosia scintilla Beecher 1899
Devonlan-Pennsylvanian

Leptathyris Siehl 1962
Athyridacea McCoy 1844

Leptathyris gryphis Siehl 1962
Devonian

Leptella Hall&Clarke 1892
Plectambonitacea Jones 1928

Leptaena sordida Billings 1862
Ordovician

Leptellina Ulrich&Cooper 1936
Plectambonitacea Jones 1928

Leptellina tennesseensis Ulrich&Cooper 1936
Ordovician

Leptelloidea Jones 1928
Plectambonitacea Jones 1928

Plectambonites schmidti Bekker 1921
Ordovician

Leptembolon Mickwitz 1896
Lingulacea renke 1828

Obolus linqulaeformis Mickwitz 1896
Cambrian-Ordovician

Leptestia Pekker 1922
Plectambonitacea Jones 1928

Leptestia musculosa Pekker 1922
Ordovician

Leptestiina Havlicek 1952
Plectambonitacea Jones 1928

Denignites prantli Havlicek 1952
Ordovician

Leptobolus Hall 1871
Lingulacea menke 1828

Leptobolus lepis Dall 1877
Ordovician

Leptocaryorhynchus Sartenaer 1970
Phynchonellacea Gray 1848

Camarotoechia jamensis 3rice 1967
Devanan

Leptochonetes Havlicek&Pachepoeuf 1979
Chonetacea Prono 1862

Chonetes tardus Rarrande 1879
Devonian

Leptocoelia Hall 1957
Dayiacea Waagen 1883

Leptocoelia propria Hall 1857
Devonian

Leptocoelina Johnson 1970
Daylacea Waacien 1883

Leptocoelina squamosa Johnson 1970
Devonian

Leptodonta Khalfin 1955
Strophomenacea King 1846

Leptaena leblanci Rouault 1851
Devonian

Leptodontella Khalfin 1948
Strophomenacea King 1846

Leptaena caudata Schnur 1854
Devonian

Leptodus Kayser 1893
Lyttonlacea Waagen 1883

Leptodus richthofeni Kayser 1883
Permian

Leptoptilum Opik 1930
Plectambonitacea Jones 1928

Leptestia bekkeri Opik 1930
Orlovician

Leptoskelidion Amsden 1974
Enteletacea Waagen 1884

leotoskelidion septulosum Amsden 1974
Silurian

Leptospira Boucot,Johnson&Staton 1964
Retzlacea Waagen 1883

Trematospira costata Hall 1859
Devonian

Leptostrophia Hall&Clarke 1892
Strophomenacea King 1846

Stropheodonta magnifica Hall 1857
Silurian-Devonian

Leptostrophiella Harper&Boucot 1978
Stropheodontacea Caster 1939

Leptaena explanata Sowerby 1842
Silurian-Devonian

Leptothyrella Muir-Wood 1965
Terebratellacea King 1850

Leptothyris ignota Mulr-Wood 1959
Recent

Leptothyrellopsis Ritner&Pisera 1979
Terebratellacea King 1850

Leptothyrellopsis polonicus Bitner&Pisera 1979
Cretaceous

Lercarella Mascle&Termier 1970
Productacea Gray 1840

Lercarella sicana Mascle&Termier 1970
Pennsylvanian-Permian

Lespius Gregorio 1930
Orthotetacea Waagen 1884

Lespius favoritus Gregorio 1930
Permian

Lethamia Waterhouse 1973
Productacea Gray 1841

Lethamia ligurritus Waterhouse 1973
Permian

Leurosina Cooper&Grant 1975
Chonetacea nronn 1862

Leurosina marginata Cooper&Grant 1975
Permian

Levenea Schuchert&Cooper 1931
Enteletacea Waagen 1884

Orthis suhcarinata Hall 1857
Silurian-Devonian

Levibiseptum Xian 1975
Pentameracea McCoy 1844

Levibiseptum dushanense Xian 1975
Devonian

Leviconchidiella Pzonsnitzkaja 1960
Pentameracea McCoy 1844

Sieberella vagranica Khodalevich 1951
Devonian

Levigatella Andronov 1961
Pentameracea McCoy 1944

Gypidula olga Khodalevich 1939
Silurian-Devonian

Levipustula Maxwell 1951
Productacea Gray 1840

Levïipustula levis Maxdell 1951
Pennsylvanian

Levispira Mizens 1975
Atrypacea Gill 1871

Levispira effeliensis Mizens 1975
Devonian

Levitusia Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus humerosus Sowerby 1822
Mississipnian

Lialosia Muir-Wood&Cooper 1960
Strophalosiacea Schuchert 1913

Strophalosia kimberleyensis Prendergast 1943
Permian

Libyaeglossa Havlicek 1973
Lingulacea menke 1929

Libyaeglossa collombi Havlicek 1973
Ordovician

Libys massa,Termier&Termier 1974
Productacea Gray 1840

Libys hericinus Massa et al 1974
Mississippian

lichareviella Ustritsky 1959
Strophalosiacea Schuchert 1913

Strophalosia costata Waagen 1894
Permian

Licharewia Einor 1939
Spiriferacea King 1846

Spirifer stuckenberqi Netschajew 1930
Permian

Licharewiella Sokolskaja 1960
Davidsoniacea King 1850

Derbya magnifica Licharew 1939
Permian

Lievinella Boucot 1975
Stringocephalacea King 1850

Rensselaerina primaeva Barrois et al 1920
Devonian

Liljevallia Hedstrom 1917
Strophomenacea King 1846

Liljevallia gotlandica Hedstrom 1917
Silurian

Limbella Stehli 1954
Aplostegacea Muir-Wood&Cooper 1960

Aulosteges wolfcampensis King 1931
Pennsylvanian-Permian

Limbimurina Cooper 1956
Strophomenacea King 1846

Limbimurina insueta Cooper 1956
Ordovician

Lindstroemella Hall&Clarke 1890
Discinacea Gray 1840

Lindstroemella aspidium Hall&Clarke 1890
Devonian-Pennsylvanian

Lineirhynchia nuckman 1917
Rhynchonellacea Gray 1848

Rhynchonella cotteswoldiae Upton 1899
Jurassic

Linguithyris Buckman 1917
Terebratulacea Gray 1840

Terebratula bifida Rothpletz 11586
Jurassic

Lingula Bruquiere 1997
Linoulacea Menke 1828

Lingula anatina Lamarck 1801
Ordovician-Recent

Lingulapholis Schuchert 1913
Linqulacea menke 1828

Pholidops terminalis Hall 1859
Ordovician-Devonian

Lingulasma ulrich 1889
Lingulacea Menke 1828

Lingulasma schucherti Ulrich 1889
Ordovician

Lingutella Satter 1866
Lingulacea Menke 1828

Linguta davisii McCoy 1851
Cambrian-Ordovician

Lingulepis Hall 1863
Lingulacea Menke 1828

Linguta pinnaformis Owen 1852
Cambrian-Ordoviclan

Lingutioora Girty 1898
Lingulacea Menke 1828

lingula williamsana Girty 1898
Devonian-Pennsylvanian

Lingulobolus Matthew 1895
Lingulacea Menke 1828

Lingutella affinis Rillings 1872
Ordovician

Lingulodiscina Whitfield 1890
Discinacea Gray 1840

Lingula exilis Hall 1860
Devonian

Lingutops Hall 1872
Lingulacea menke 1828

Lingulops whitlieldi Hall 1872
Ordovician-Silurian

Linguopugnoiles Havticek 1960
Phynchonellacea Gray 1848

Phynchonella nympha Rarrande 1879
Siturian-Devonian

Linnarssonella Walcott 1902
Acrotretacea Schuchert 1893

Linnarssonella girtyi Walcott 1902
Cambrian

Ltnnarssonia Walcott 1885
Acrotretacea Schuchert 1893

Obotella trarsversa Hartt 1868
Cambrian

Linoporetla Schchert&Cooper 1931
Enteletacea Waagen 1884

Orthis ounctata Verneuit 1848
Silurian

Linoproductus Chao 1927
Productacea Gray 1940

Productus cora Orbigny 1842
Mississippian-Permian

Linoprotonia Ferguson 1971
Productacea Gray 1840

Productus hemtsphaericus Sowerby 1822
Mississippian

Linostrophomena Bong,Xu&Yang 1974
Strophomenacea King 1846

Linostrophomena convexa Pong,Xu&Yang 1974
Silurian

Llocoelia Schuchert&Cooper 1931
Uncertain

Pentamerus proximus Parrande 1879
Silurian

Lioleptaena Xiam 1978
Strophomenacea King 1846

Lioleptaena kailiensis Xian 1978
Silurian

Liosotetla Cooper 1953
Productacea Gray 1840

Liosotella rugosa Cooper 1953
Permian

Liospiriferina Pousselle 1977
Spiriferinacea Davidson 1884

Terebratutites rostratus Schlotheim 1822
Jurassic

Liostrophia Cooper&Kindle 1936
Porambonitacea navidson 1853

Liostrophia glabra Cooper&Kindle 1936
Ordovician

Liothyrella Thomson 1916
Terebratulacea Gray 1843

Terebratula uva Broderip 1833
Tertiary-Recent

liralingua Trabare 1970
Lingulacea Menke 1828

Ltratingua indtcus Graham 1970
Carboniferous

Lirarla Cooper&Grant 1975
Productacea Gray 1840

Liraria lirata Cooper&Grant 1975
Permian

Liraspirifer Stainbrook 1950
Spiriferacea King 1846

Liraspirtfer tricostatus Stainbrook 1950
Mississippian

Lirellaria Cooper&Grant 1976
Rhynchonellacea Gray 1848

Lirettaria costellata Cooper&Grant 1976
Permian

Liricamera Cooper 1956
Porambonitacea Davidson 1853

Liricamera nevadensis Cooper 1956
Ordovician

Liriplica Campbell 1961
Spiriferinacea Davidson 1884

Liriplica alta Camobell 1961
Pennsylvanian

Lissajousithyris Almeras 1971
Terehratulacea Gray 1840

Terebratula matisconensis Lissajous 1936
Jurassic

Lissatrypa Twenhofet 1914
Atrypacea Gill 1871

Lissatrypa atheroidea Twenhofel 1914
Silurian-Devonian

Lissatrypoidea Boucot&Amsden 1958
Atrypacea Gill 1871

Nucleosoira concentrica Hall 1859
Silurian

Lissella Camphell 1961
Rhynchoneltacea Gray 1848

lissella booralensis Campbell 1961
Pennsylvanian

Lissochonetes Dunhar&Condra 1932
Chonetacea Bronn 1862

Chonetes glaber Geinitz 1866
Pennsylvanian-Permian

Lissocoetina Schuchert&Cooper 1931
Pentameracea McCoy 1844

Pentamerus pergibbosus Hall&Whitfield 1875
Silurian

Lissocrania Williams 1843
Craniacea Menke 1823

Crania dodgei Rowley 1908
Mississipoian

Ltssomaroinifera Lane 1962
Productacea Gray 1840

Lissomarginlfera nuda Lane 1962
Pennsylvanian

Lissopleura Whitfield 1896
Rhynchonellacea Gray 1848

Rhynchonetta aeouivalvis Hall 1857
Devonian

Lissorhynchia Yang&Xu 1966
Rhynchonellacea Gray 1848

Lissorhynchia pygmaea Yang&Xu 1966
Triassic

Lissosia Cooper&Grant 1975
Chonetacea Bronn 1962

nyoros concavus Cooper&Grant 1975
Permian

Lissostrophia Amsden 1949
Strophomenacea King 1846

Lissostrophia cooperi Amsden 1949
Silurian-Devonian

Lissotreta Aniden 1968
Triolesiacea Schuchert 1913

Onychotreta olicata Ulrich&Cooper 1936
Silurian

Litocothia Grant 1976
Lyttoniacea Waapen 1883

Litocothia cateora Grant 1976
Permian

Litothyris Roberts 1971
Spiriferacea King 1846

Litothyris alticostata Roberts 1971
Devonian

Ljaschenkovia Patrukova 1969
Disc inacea Gray 1840

Ljaschenkovia udmurtica Patrukova 1969
Devonian

Ljudmilispirifer Tcherkesova 1976
Cyrtiacea rredericks 1924

nelthyris irregulars Nalivkin 1960
Devonian

Llanopelta Boucot 1975
Porambonitacea navidson 1853

Llanoelta stephensi Boucot 1975
Devonian

Loboidothyris guckman 1917
Terebratulacea Gray 1840

Loboidothyris latovalis Buckman 1917
Jurassic

Loboidothyropsis Sucic-Protic 1971
loboidothyridacea Mokridin 1964

Loboidothyropsis tipica Sucic-Protic 1971
Jurassic

Lobothyris quckman 1917
Terehratulacea Gray 1840

Terebratula punctata Sowerby 1812
Jurassic

Lobothyroides Xu 1978
Terebratulacea Gray 1840

Lobothyroides striata Xu 1978
Triassic

Lobvia Preivel&Breivel 1977
Spiriferacea King 1846

Theodossia praesuperbus Breivel&Breivel 1977
Devonian

Loczyella Frech 1901
Richthofeniacea Waagen 1855

Loczyella nankingensis Frech 1901
Permian

loganella Roucot&Amsden 1958
Enteletacea Waagen 1884

Rhipidomella lehuouetiana Clarke 1907
Devonian

Loilemia Reed 1936
Atrypacea Gill 1871

Loilemia proxima leed 1936
Silurian

Lomatiphora Roberts 1971
Productacea Gray 1840

Lomatiphora aquila Roberts 1971
Mississippian

Longdongshuia Hou&Xian 1975
Rhynchonellacea Gray 1848

Longdongshuia subaequata Hou&Xian 1975
Devonian

Longispira Cooper 1942
Chonetacea Pronn 1862

Chonetes emmetensis Winchell 1866
Devonian

Lonpithyris Katz&Popov 1974
Terebratulacea Gray 1840

Najdinothyris loncha Katz 1973
Cretaceous

Longvillia Rancroft 1933
Strophomenacea King 1846

Strophomena arandis Sowerby 1839
Ordovlcian

Loperla Walcott 1905
Orthacea Woodward 1862

Prntorthis dougaldensis Walcott 1905
Cambrian

Lophrothyris Ruckman 1917
Terebratulacea Gray 1840

Lophrothyris lophus Ruckman 1917
Jurasstc

Lopingia Chan 1979
havidsoniacea King 1850

Orthotetes ruber Frech 1911
Permian

Lorangerella Crickmay 1963
Rhynchonellacea Gray 1848

Lorangerella phaulomorpha Crickmay 1963
Devonian

Lordorthis Ross 1959
Orthacea Woodward 1952

Lordorthis variabilis Ross 1959
Ordovician

Loriolithyris Middlemiss 1968
Terebratulacea Gray 1840

Terebratula russillensis Loriol 1866
Cretaceous

Losvia Breivel&Breivel 1976
Rhynchonellacea Gray 1848

Puonoides operosa Khodalevich 1951
Devonian

Lowenstamla Stehli 1961
Dielasmatacea Schuchert 1913

Lowenstamia texana Stehli 1961
Permian

Loxophragmus Cooper&Grant 1974
Lyttoniacea Waagen 1883

Loxophragmus ellioticus Cooper&Grant 1974
Permian

Luanguella Garcia-Alcalde&Racheopeuf 1978
Chonetacea Fironn 1862

Luanquella cantabriensis Garcia-Alcalde et al 1978
Devonian

Ludfordina Kelly 1967
Strophomenacea King 1846

Ludfordina pixis Kelly 1967
Silurian

Luhaia Roomusoks 1956
Strophomenacea King 1846

Luhaia vardi Roomusoks 1956
Ordovician

Lunaria Ching,Sun&Ye 1979
Rhynchonellacea Gray 1848

Lunaria dorsata Ching,Sun&Ye 1979
Triassic

lunpolaia Ching&Ye 1979
Terebratulacea Gray 1840

Lunpolaia cymbaliformis Ching&Ye 1979
Cretaceous

Luofuia Xu 1977
Plicanoplitacea Xu 1977

Luofula delicata Xu 1977
Devonian

Lutetiarcula Flliott 1954
Terebratellacea King 1850

Lutetiarcula perolexa Elliott 1954
Tertiary

Lycophorla Lahusen 1886
Porambonitacea Davidson 1853

Atryoa nucella Dalman 1828
Ordovician

Lyra Cumberland 1818
Terebratetlacea King 1850

Lyra meadi Cumberland 1818
Cretaceous

Lytha Fredericks 1924
Spiriferacea King 1846

Spiriferella tschernyschewiana Fredericks 1916
Mississippian

Lyttonia waagen 1883
Lyttoniacea Waagen 1883

Lyttonia nobilis Waagen 1883
Permian

Maakina Andreeva 1961
Stronhomenacea King 1846

Opikina kulinnensis Andreeva 1961
Ordovician

Macandrevia Kina 1859
Terebratellacea King 1850

Terebratula cranium Muller 1976
Tertiary-Recent

Machaeraria Cooper 1955
Rhynchonellacea Gray 1848

Rhynchonella formosa Hall 1857
Devonian

Mackerrovia Cocks 1968
Strophomenacea King 1846

Rrachyprion arenaceus Lamont&Gilbert 1945
Silurian

Maclarenella Stehli 1955
Dietasmatacea Schuchert 1913

Mactarenelta maculosa Stehli 1955
Devonian

Macrocoelia Cooper 1956
Strophomenacpa King 1846

macrocoelia obesa Cooper 1956
Ordovician

Macroplectane tossano 1909
Stringocephalacea King 1850

Denckmannia circularis Holzapfel 1908
Devonian

Macropleura Roucot 1963
Cyrtiacea Fredericks 1924

Delthyris macropleurus Conrad 1940
Silurian-Devonian

macropotamorhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Camarotoechia mitchetdeanensis Vauchan 1905
Mississipoian

Madarosia Cooper&Grant 1976
Rhynchonellacea Gray 1848

madarosia anterolamellata Cooper&Grant 1976
Permian

Magadania Ganelin 1977
Productacea Gray 1840

Cancrinella bajkurica Ustritsky 1963
Permian

Magadina Thomson 1915
Terebratellacea King 1850

Magadina browni Thomson 1915
Cretaceous-Recent

Magadinella Thomson 1915
Terebratellacea King 1850

Maclasella woodsiana Tate 1880
Tertiary

Magas Sowerby 1818
Terebrateltacea King 1850

Magas pumilis Soweroy 1818
Cretaceous

Magaselta nall 1870
Terebratettacea Kina 1850

Terebratella evansii navidson 1852
Tertiary-Recent

Magella Thomson 1915
Terebratellacea King 1850

Magella carinata Thomson 1915
Tertiary-Recent

Magellania mayle 1880
Terebratellacea King 1850

Terebratuta australis Quoy&Gaimard 1834
Tertiary-Recent

Magharithyris Farag&Gatinaud 1960
Terebratutacea Gray 1840

magharithyris triplicata Farag&Gatinaud 1960
Jurassic

magnicanatis Rowell 1962
Obolellacea Walcott&Schuchert 1908

Obolella mobergi Walcott 1901
Cambrian

Magnithyris Sahni 1925
Terebratulacea Gray 1840

Magnithyris magna Sahni 1925
Cretaceous

magniventra Haroer&Poucot 1978
Stropheolontarea Caster 1939

Strophomena magriventra Hall 1857
Devonian

Maonumborella Carter 1968
Productacea Gray 1840

Magnumbonella macrura Carter 1968
Mississinpian

Majkooella Moisseiev 1962
Athyridacea McCoy 1844

Athyris worobievi Moisseiev 1947
Triassic

Makridinirhynchia Sucic-Protic 1969
Rhynchoreltacea Gray 1848

Makridinirhyrhchia makridini Sucic-Protic 1969
Jurassic

Malayanoplia Hamada 1969
Chonetacea Bronn 1862

malayanoptia demiluna Hamada 1969
Devonran-Carboniferous

Malleia Thomson 1827
Ferebratellacea King 1850

Terebratella portlandica Chapean 1913
Tertiary

Mal.rostrophla Campbell&Talent 1967
Strophomenacea King 1846

Malurostrophia flabellicauda Campbell&Talent 1967
Devonian

Malwirhynchia Chiplonker 1938
Phynchonellacea Gray 1848

Malwirhynchia transversalis Chlplonker 1938
Cretacecurs

Mametothyris Smirnova 1969
Loboiiothyridacea Makridin 1964

Mametothyris mametica Smirnova 1969
Cretaceous

Mammosum Gregorio 1930
Davidsoniacea King 1850

Mammnsum insum Gregorio 1930
Permian

Mani thyris Foster 1974
Phynchonellacea Gray 1848

manithyris rossl Foster 1974
Recent

Mannia Davidson 1874
Phynchonellacea Gray 1848

Mannia nysti Dewalque 1868
Terrlary

Marsina Andreeva 1977
Stroohomenacea King 1846

Mansina uralica Andreeva 1977
Ordovician

Maorielasma Waterhouse 1964
Drelasmatacea Schuchert 1913

Maorielasma imperatum Waterhouse 1964
Permian

maorrstrophia Allan 1947
Strophomenacea King 1846

Maorlstrophia neozelarica Allan 1947
Devonian

Marcharella Andreeva 1968
Orthacea Woodward 1852

Marcharella marchensis Andreeva 1968
Cambrian

Marginalosia Waterhouse 1978
Strophalosiacea Schuchert 1913

Fchinalosia kalikotei Waterhouse 1975
Permian

Marqinatia Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus Fernglenensis Welter 1909
Mississippian

Marginicinctus Sutton 1938
Productacea Gray 1840

Productus marginicinctus Prout 1857
Mississippian

Maroinifera Waagen 1884
Productacea Gray 1840

Marginrfera typica Waagen 1884
Permian

marginirugus Sutton 1938
Productacea Gray 1840

Productus magnus Meek&Worthen 1862
Mississippian

Mariannaella Sapelnikov et al 1975
Stricklandiacea Schuchert&Cooper 1931

Clorindina koksengirensis Borissiak 1975
Silurian

Marinurnula Waterhouse 1964
Dielasmatacea Schuchert 1913

Marinurnula ruqulata Waterhouse 1964
Permian

Marionites Cooper&Muir-Wood 1951
Orthacea Woodward 1852

Marionella typa Rancroft 1928
Ordovician

Markitoechia Havlicek 1959
Rhynchonellacea Gray 1848

Uncinulus marki Havlicek 1956
Devonian

Marklandella Harper,Bogcot&Walmsley 1969
Enteletacea Waagen 1884

Marklandella giraldi Harper et al 1969
Silurian

martellia Wirth 1936
Clitambonitacea Winchell&Schuchert 1893

Orthisina giraldii Martelli 1901
Ordovician

Martellispirifer Gatinaud 1949
Spiriferacea King 1846

Spirifgr verneuili martelli 1902
Devonian

Martinia McCoy 1844
Reticulariacea Waagen 1883

Spirifer glaber Sowerby 1820
Mississiopian-Permian

Martiniella Grabag&Tien 1931
Reticulariacea Waagen 1883

Martiniella rasuta Grahau 1931
Carboni ferous

Martiniopsis Waagen 1883
Peticulariacea Waagen 1883

Martiniopsis inflata Waagen 1883
Pennsylyanian-Permian

Martinothyris Minato 1953
Reticulariacea Waagen 1883

Terebratula lineata Soweroy 1822
Mississippian

Matutella Cooper 1951
Pillingsellacea Schuchert 1893

Matutella clarki Cooper 1951
Cambrian

mauispirifer Allan 1947
Spiriferacea King 1846

Maui spirifer hectori Allan 1947
Devonian

Maxillirhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Maxillirhynchia implicata Buckman 1917
Jurassic

Mcewanella Foerste 1920
Orthacea Woodward 1852

Platystrophia fernvalensis McEwan 1919
Ordovician

Mclearnites Caster 1945
Strophomenacea King 1846

Rrachyprion mertoni McLearn 1924
Silurian

mclearnitesella Harper&Boucot 1978
Stropheodontacea Caster 1939

Mclearrotes hickoxi Haroer&Boucot 1978
Silurian-Devonian

Medessia Andreeva 1960
Poramboritacea Davidson 1853

Medessia uralica Andreeva 1960
Ordovician

Mediospirifer Rublichenko 1956
Spiriferacea King 1846

nelthyris medialis Hall 1843
Devonian

Mediterranirhynchia Sucic-Protic 1969
Rhynchonellacea Gray 1848

Mediterranlrhynchia medi terrana Sucic-Protic 1969
Jurassic

Meekella White&St.John 1867
Derbyiacea Stehli 1954

Plicatula striatocostata Cox 1857
Mississippian-Permian

Megachonetes Sokolskaja 1950
Chonetacea Pronn 1862

Chonetes compressa Sibly 1908
Devonian-Mississippian

Megakozlowskiella Boucot 1957
Spiriferacea King 1846

Spirifer perlamellosus Hall 1857
Silurian-Devonian

Megalopterorhynchus Sartenaer 1965
Rhynchorellacea Gray 1848

Megalopterorhynchus haynesi Sartenaer 1965
Devonian

Megamyonia Wang 1949
Strophomenacea King 1846

Megamyonia knighti Wang 1949
Ordovician

Meganterella Boutot 1959
Stringocephalacea King 1850

Meganterella finksi Boucot 1959
Devonian

Meoanteris Suess 1855
Stringocephalacea King 1850

Terebratula archiaci Verneuil 1850
Devonian

Megapleuronia Cooper 1952
Eichwaldiacea Schuchert 1893

Productus fabianii Greco 1947
Permian

Megasalopina Poucnt,Gauri&Johnson 1966
Enteletacea Waagen 1884

nalmanella elevata Williams&Breger 1916
Devonian

Megasteges Waterhouse 1975
Aulostegacea Muir-Wood&Cooper 1960

megasteges nepalensis Waterhouse 1975
Permian

Megastrophia Cantee 1939
Strophomenacea King 1846

Stropheodonta concava Hall 1857
Silurian-nevonian

Megastrophiella Harper&Boucot 1978
Stropheodontacea Caster 1939

Stropheodonta iddingsi Merriam 1940
Devonian

Megathiris Orbigny 1847
Terebratellacea Kino 1850

Antonia detruncata Gmelin 1992
Cretaceous-Recent

megerlia King 1850
Terebratellacea King 1850

Anomia truncata Lione 1967
Tertiary-Recent

Megerlina neslongchamos 1884
Terebratellacea Kino 1850

Kraussia lamarckiana Davidson 1852
Tertiary-Recent

Megousia Muir-Wood&Cooper 1960
Productacea Gray 1840

Megousia auriculata Muir-Wood&Cooper 1960
Permian

megumatryoa Haroer 1973
Atrypacea Gill 1871

Megumatrypa glencoensis Harper 1973
Silurian

Meifodia Williams 1951
Atrypacea Gill 1871

Hemithyris subundata McCoy 1851
Silurian

mendacella Cooper 1930
Enteletacea Waagen 1884

Orthis uperis Billings 1866
Ordovician-Devonian

mendathyris Cloud 1942
Stringocephalacea King 1850

Rensselaeria ma inensis Williams 1900
Devonian

Mennespirifer Ljaschenko 1973
Spiriferacea King 1846

uchtospirifer menneri Ljaschenko 1959
Devonian

Mentzelia Quenstedt 1871
Reticulariacea Waagen 1883

Spirifer medianus Ouelstedt 1852
Triassic

Mentzelioides nagys 1974
Spiriferinacea Davidson 1884

Mentzeliopsis meridialis Dagys 1963
Triassic

Mentzeliopsis Trechmann 1918
Spiriferinacea navidson 1884

Mentzeliopsis spinosa Trechmann 1918
Triassic

Meonia Steinich 1963
Terebratulacea Gray 1840

Terebratulina semiglobularis Posselt 1894
Cretaceous

Merciella Lamont&Gilbert 1945
Plectambonitacea Jones 1928

Leptella vesper Lamont&Gilbert 1945
Ordovician-Silurian

Merista Suess 1851
Athyridacea McCoy 1844

Terebratula herculea Barrande 1847
Silurian-Devonian

Meristella Hall 1860
Athyridacea McCoy 1844

Atryna laevis Vanuxem 1842
Devonian

Meristina Hall 1867
Athyridacea McCoy 1844

Meristella enana Hall 1863
Silurian-Devonian

Meristoryama Carter 1974
Spiriferacea King 1846

Meristorygma arctica Carter 1974
Pennsylvanian

Meristospira Grabau 1910
Athyridacea McCoy 1844

Meristospira michiganense Grabau 1910
Devonian

Merospirifer Reed 1949
Reticutariacea Waageo 1883

martinia insolita leed 1949
Mississippian

Mesodalmanella Havlicek 1950
Enteletacea Waacien 1884

Mesodalmanella flava Havlicek 1950
Ordovician

Mesodouviella Harper&Boucot 1978
Stropheodontacea Caster 1939

mclearnites invasor Johnson 1970
Devonian

Mesodouvillina Williams 1950
Strophomenacea King 1846

Stropheodonta subinterstrialis Kozlowski 1929
Silurian

Mesoleptostrophla Harper&Boucot 1978
Stropheodontacea Caster 1939

Mesoteptostrophia kartalensis Harperl&oucot 1974
Ordovician-nevonian

Mesolissostrophia Williams 1950
Strophomenacea King 1846

Lissostrophia pellucida Williams 1950
Silurian

Mesolobus Cunbar&Condra 1932
Chonetacea nronn 1862

Chonetes mesolobos Norwood&Pratten 1855
Pennsylvanian-Permian

Mesononla Utrich&Cooper 1936
Porambonitacea Davidson 1853

Eoorthis iophon Walcott 1924
Cambrian-Ordovician

Mesophotidostrophia Williams 1950
Strophomenacea King 1846

Pholidostroohia nitens Williams 1950
Silurian

Mesoplica Reed 1943
Productacea Gray 1840

Leptaena praelonqa Sowerby 1840
Devonian

Mesotreta Kutorga 1848
Uncertain

Siphonotreta tentorium Kutorqa 1848
Ordovician

Metabolipa Godefroid 1974
Pentameracea McCoy 1844

Pentamerus greindli Maillieux 1909
Devonian

Metacamarella Reed 1917
Pentameracea McCoy 1844

Stricklandinia balcletchiensis Davidson 1883
Ordovician

Metaplasia Hall&Clarke 1893
Cyrtiacea Fredericks 1924

Spirifer pyxidatus Hall 1859
Devonian

Metorthis Wang 1955
Orthacea Woodward 1852

Metorthis alata Wang 1955
Ordovician

Metriolepis Cooper&Grant 1976
Spiriferinacea navidson 1884

Metriolepis pulvinata Cooper&Grant 1976
Permian

Mezounia Havlicek 1967
Plectambonitacea Jones 1928

Strophomena bicuspis Barrande 1879
Silurian

Miaohuangrhynchus Yang 1977
Rhynchonellacea Gray 1848

Miaohuancirhynchus uncinuliformis Yang 1977
Devonian

Micetta Ovtsharenko 1976
Zeilleriacea Allan 1940

Gusarella makridini Pojhariskaja 1968
Jurassic

Micidus Chatterton 1973
Strinqocephatacea King 1850

Micidus shandkyddi Chatterton 1973
Devonian

Mickwitzia Schmidt 1888
Paterinacea Schuchert 1893

Lingula monilifera Linnarsson 1869
Cambrian

Micraphetia Cooper&Grant 1969
Chonetacea Brono 1862

Micraphelia scitula Cooper&Grant 1969
Permian

Microcardinalia Poucot&Ehlers 1963
Pentameracea McCoy 1844

Stricklandinia triplesiana Foerste 1890
Silurian

Micromitra Meek 1873
Paterinacea Schuchert 1893

lphidea sculpti lis Meek 1873
Cambrian

Microrhynchia Muir-Wood 1952
Rhynchonetlacea Gray 1848

Microrhynchla barnackensis Muir-Wood 1952
Jurassic

Microsphaeridlorhynchms Sartenaer 1970
Rhynchoneltacea Gray 1848

Rhynchonella litchfieldensis Schuchert 1903
Silurian-Devonian

Microthyridina Schuchert&LeVene 1929
Zeilleriacea Allan 1940

Terehratulites lagenalls Schlotheim 1820
Jurassic

Microtrypa Wilton 1945
Strophomenacea King 1846

Microtryoa altilis Wilson 1945
Ordovician

Miltythyris Almeras 1971
Terebratulacea Gray 1840

Millythyris millyensis Almeras 1971
Jurassic

Mimarla Cooper&Grant 1976
DIelasmatacea Schuchert 1913

Dielasma lepton Gemmellaro 1894
Permian

Mimatrypa Struve 1964
Atrypacea Gill 1871

Terebratula tiri sta Roemer 1844
Devoniani

Mimella Cooper 1930
Orthacea Woodward 1852

Pionodema globosa Willard 1928
Ordovician

Minatothyris Vandercammen 1957
Reticmlariacea Waacien 1883

Spiri fer euryglossus Schnur 1851
Devonian

Miniplanus Waterhouse&Plyasin 1970
Davidsoniacea King 1850

Miniplanus minuta Waterhouse&Piyasin 1970
Permian

Miniprokopia Havlicek 1971
Enteletacea Waaclen 1884

Miniprokopla miniconcha Havticek 1971
Devonian

Minororthis Ivanov 1950
Uncertain

Minororthis nalivklni Ivanov 1950
Ordovician

Minutilla Crickmay 1967
Spirlferacea King 1846

Acutatheca Layeri Crickmay 1967
Devonian

Minutostrophendonta Harper&Boucot 1978
Stropheodontacea Caster 1939

Leptaena subtransversa Schnur 1853
Devonian

Miogryphus Hertlein&Grant 1944
Terebratellacea King 1850

Miqqryphus willetti Hertlein&Grant 1944
Tertlary

Mirantesia mohanti 1972
Rhynchonellacea Gray 1848

MIrantesia mirantana mohanti 1972
Devonian

Mirifusella Carter 1971
Spiriferacea King 1846

Mirifmsella fortmnata Carter 1971
Mississippian

Mirisquamea Sucic-Protic 1971
Lohoidothyridacea Makridin 1964

Lobothyris punctata Ager 1956
Jurassic

Mirtellaspirifer Gatinaud 1949
Spirlferacea Orlo 1846

Spirifer martellii Grabau 1931
Devoniani

Misolia Seidlitz 1913
Athyrisinacea Grabau 1931

Misolia mlsolica Seldlitz 1913
Trlassic

Miyakothvris Hatai 1938
Terebratellacea King 1850

Nipponithyris subovata Hatai 1936
Tertiary

Mjoesina Spjeldnaes 1957
Strophomenacea Vino 1846

Rafinesouina mjoesensis Holtedahl 1916
Ordovician

Mobergia Pedlich 1899
Acrotretacea Schuchert 1823

Mobergla oranmlata Redlich 1899
Cambrian

Modestetta Owen 1961
Zeitteriacea Atlan 1940

Modestella modesta Caen 1961
Cretaceous

Moeschia Pouttier 1976
Terehratutacea Gray 1840

Terebratuta atata Rottet 1972
Jurassic

Modoktella Andreeva 1968
Porambonitacea Davidson 1853

Mogoktetta istendica Andreeva 1968
Cambrian

Moisseevia Makridin 1964
Terebratulacea Gray 1840

Moisseevia sokotovi Makridin 1964
Jurassic

Moisseievia bagys 1963
Rhynchonettacea Gray 1848

Moisseievia moisseievi Dagys 1963
Triassic

Motongetta Savaqe 1974
Datmaneltacea Schuchert 1913

Motongelta tatenti Savage 1974
Devonian

Motongia Mitchett 1921
Athyrisinacea Grabau 1931

Motongia etegans Mitchell 1921
Siturian-Devonian

Monadotoechia Havlicek 1960
Rhynchoneltacea Gray 1848

Terebratuta monas Barrande 1847
Devonian

Monelasmina Cooper 1955
Enteletacea Waagen 1884

Orthis deshayesi Rigaux 1873
Devonian

Mongotetta Atekseeva 1976
Mongotellacea Atekseeva 1976

Mongolella attatca Alekseeva 1976
Devonian

Monootietta Tschnazarov 1972
Productacea Gray 1840

Mongoliella sukokentica ISchnazarov 1972
Devonian

Mongotina Grahau 1931
Dielasmatacea Schuchert 1913

Monoolina subdieneri Grabau 1931
Permian

Mongotioosis Grunt 1977
Delthyridacea Philllos 1841

Mongotiopsis orkheinensis Grunt 1977
Mississippian

Mongotirhynchia Hou&Zhao 1976
Phynchonettacea Gray 1848

Mongotirhynchia detitescens Hou&Zhao 1976
Silurian

Mongotosia Manankov&Pavlova 1976
Stroohalosiacea Schuchert 1913

Mongotosia morenkovi Manankov&Pavlova 1976
Permian

Mongotosoira Atekseeva 1977
Retzlacea Waaoen 1883

Mongolosoira turgensis Alekseeva 1977
Devonian

Monobolina Satter 1866
Lingutacea Menke 1828

Linguta ptumbea Satter 1859
Ordoviclan

Monoconvexa Pelean 1977
Oboletlacea Watcott&Schuchert 1908

Monoconvexa monoconvexa Pelean 1977
Cambrian

Monomeretla Biltings 1871
Trimerettacea Davidson&King 1872

Monomeretta prisca Billings 1871
Silirriar

Monorthis Bates 1968
Orthacea Woodward 1852

Monorthis tyois Bates 1968
Ordovician

Monsardithyris Almeras 1971
Terebratutacea Gray 1840

Terebratuta ventricosa Hartmann 1830
Jurassic

Montanetta Ovtsharenko 1976
Zeitteriacea Attan 1940

Gusaretta tonga Prosorovskaia 1968
Jurassic

Montictarella Wisniewska 1932
Rhynchonettacea Gray 1848

Rhynchonetta czenstochowiensis Roemer 1870
Jurassic

Monticulifera Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus intermedius Frech 1911
Permian

Moorefieldella Girty 1911
Rhynchonellacea Gray 1848

Rhynchonella eurekensis Walcott 1884
Mississippian

Moorellina Elliott 1953
Thecideacea Gray 1840

Thecidea duolicata Moore 1855
Triassic-Jurassic

Moquellina Ching,Sun&Ye 1979
Rhynchonellacea Gray 1848

Moquellina arcuata Ching,Sun&Ye 1979
Jurassic

Moraviaturia Sahni 1960
Terebratulacea Gray 1840

Terebratula diphimorpha Stoliczka 1872
Crelaceous

Moravilla Havlicek 1953
Cyrtiacea Fredericks 1924

Moravilla ficneri Havlicek 1953
Devonian

Moravostrophia Havlicek 1962
Strophomenacea King 1846

Strophomena interstrialis Smycka 1897
Devonian

Morganella McKellar 1970
Productacea Gray 1940

Morganella maaetli McKellar 1970
Devonian

Morinorhynchus Havlicek 1965
Orthotetacea Waagen 1884

Morinorhynchus dalmanelliformis Havlicek 1965
Silurian

Morrisia Davidson 1852
Terebratellacea King 1850

Terebratula seminulum Philippi 1836
Tertiary-Recent

Morrisina Grabau 1931
Dielasmatacea Schuchert 1913

Hemiptychina sparsiplicata Waagen 1882
Premian

Morrisithyris Almeras 1971
Terebratulacea Gray 1840

Terebratula phillipsii Morris 1847
Jurassic

Mosouella Makridin 1955
Rhynchonellacea Gray 1848

Terebratula oxyoptycha Fischer 1843
Jurassic

Moumina Fredericks 1924
Reticulariacea Waagen 1883

Martinia incerta Tschernyschew 1902
Permian

Moutonithyris Middlemiss 1976
Terehratulacea Gray 1840

Terebratula moutoniana Orbigny 1849
Cretaceous

Mucrospirifer Grabay 1931
Spiriferacea King 1846

nelthyris mucronata Conrad 1841
Devoniani

Muirwoodella Tchorszhewsky 1974
Loboldothyridacea Makridin 1964

Muirwoodella muirwoodae Tchorszhewsky 1974
Jurassic

Muirwoodia Licharew 1947
Productacea Gray 1840

Productus mammatus Keyserling 1846
Pennsylvanian-Permian

Multicosta Khodalevich&Breivel 1977
Pentameracea McCoy 1844

Gypidula osturalica Khodalevichglarelvel 1959
Devonian

Multicostella Schuchert&Cooper 1931
Orthacea Woodward 1852

Orthis saffordi Hall&Clarke 1892
Ordovician

Multispinula Rowell 1962
Siphonotretacea Kutorqa 1848

Schizambon macrothyris Cooper 1956
Ordovician

Multispirifer Cap un 1961
Cyrtiacea Fredericks 1924

Spirifer solitarius Krantz 1857
Devonian

Munhella Neuman 1971
Orthacea Woodward 1952

Munhella cummingi Neuman 1971
Ordovician

Munieratrypa Mizens et al 1979
Atrypacea Gill 1871

Punctatrypa munieri Rzonsnitzkaja 1975
Devonian

Muriferella Johnson&Talent 1967
Enteletacea Waagen 1884

Muriferella masurskyl Johnson&Talent 1967
Devonian

Murinetta Cooper 1956
Strophomenacea King 1846

Murinetta partita Cooper 1956
Ordovician

Murravia Thomson 1916
Terebratutacea Gray 1840

Terebratutina catinutiformis Tate 1896
Tertiary-Recent

Muscutina Schuchert&LeVene 1929
Terebratulacea Gray 1840

Terebratula bipticata Buch 1834
Cretaceous

Mutationetta Kozlowski 1929
Strinclocephatacea King 1850

Watdheimia podotica Siemiradzki 1906
Devonian

Myotreta Gorjansky 1969
Acrotretacea Schuchert 1893

Myotreta crassa Gorjansky 1969
Ordovician

Myriospirifer Havticek 1978
Cyrtiacea Fredericks 1924

Myriospirifer myriofila Havticek 1978
Devonian

Mystrophora Kayser 1871
Enteletacea Waagen 1834

Orthis areola Ouenstedt 1871
nevanian

Nabarredia Havticek&Racheboeuf 1979
Chonetacea Rronn 1862

Chonetes minor Barrande 1879
Silurian

Nablaola Xu 1979
Plectambonitacea Jones 1928

Nabiaola pusilla Xu 1979
Devonian

Nadiastrophia Tatent 1963
Strophomenacea King 1846

Nadiastrophia superba Talent 1963
Devonian

Najadospirifer Havticek 1957
Reticulariacea Waagen 1883

Spirifer najadum Rarrande 1848
Devonian

Najdinothyris Makridin&Katz 1964
Terebratulacea Gray 1843

Terebratula beksii Roemer 1841
Cretaceous

Nakazatothyris Minato&Kato 1977
Reticutariacea Waagen 1883

Undispirifer vandercammeni Minato&Kato 1977
Devonian

Nativkinaria Rzonsnitzkaja 1968
Rhynchonellacea Gray 1848

Nativkinaria tacunata Rzonsnitzkaja 1968
Devonian

Nalivkinetta Popov 1974
Loboidothyridacea Makridin 1964

Nativkinella nalivkini Popov 1974
Jurassic

Nativkinia Bublichenko 1928
Atrypacea Gill 1871

Atrypa gruenwaldtiaeformis Peetz 1901
Siturian-Devonian

Nanambonites Liu 1976
Ptectambonitacea Jones 1928

Nanambonites paucus Liu 1976
Ordovician

Nannirhynchia quckman 1917
Rhynchonettacea Gray 1848

Nannrhynchi a subpyqmaea Buckman 1917
Jurassic

Nanorthis Utrich&Cooper 1936
Orthacea Woodward 1852

Orthis hamburgensis Watcott 1884
Ordovician

Nanospira Amsden 1949
Atrypacea Gitt 1871

Nanospira parvula Amsden 1949
Silurian

Nanothyris Ctoud 1942
Stringocephatacea King 1850

Meganteris mutabilis Hall 1857
Devonian

Nantanetta Grabau 1036
Rhynchonettacea Gray 1848

Nantanetta mapingensis Grabau 1936
Permian

Nanukidium Jones 1979
Pentameracea McCoy 1844

Rossella arctica Jones 1978
Silurian

Naradanithyris Tokuyama 1958
Terebratulacea Gray 1843

Naradanithyris kuratai Tokuyama 1958
Jurassic

Nayunnella Sartenaer 1961
Rhynchonellacea Gray 1848

Yunnanella synplicata Grabau 1931
Devonian

Neatrypa Struve 1964
Atrypacea Gill 1871

Desquamatia europaea Struve 1964
Devonian

Nebenothyris minato 1953
Reticulariacea Waacien 1883

Nebenothyris lineatus Minato 1953
Mississippian

Nekhoroshevia Ruhlichenko 1956
Rhynchonellacea Gray 1848

Nekhoroshevia altaica Publichenko 1956
Devonian

Nematocrania Grant 1975
Craniacea Menke 1828

Nematocrania crassa Grant 1976
Permian

Nemesa Schmidt 1941
Phynchonellacea Gray 1848

Nemesa nemesana Schmidt 1941
Devonian

Neobolus Waanen 1885
Acrotretacea Schuchert 1893

Neobolus warthi Waagen 1885
Cambrian

Neohouchardia Thomson 1927
Terebratellacea Mino 1850

Gouchardia minima Thomson 1918
Tertiary

Neochonetes Muir-Wood 1962
Chonetacea Rronn 1862

Chonetes dominus King 1938
Pennsylvanian-Permian

Neocoelia McKellar 1966
nayiacea Waagen 1883

Neocoelia boucoti McKellar 1966
Devonian

Neocyrtina Yang&Xu 1966
Cyrtlacea Fredericks 1924

Neocyrtina mixodeltidiumosa Yang&Xu 1966
Triassic

Neodelthyris Hou 1963
Spiriferacea ming 1846

Neodelthyris sinensis HDU 1963
Devonian

Nenfascicosta Tu 1978
Phynchonellacea Gray 1848

Neofascicosta pulchra Tu 1978
Triassic

Neogypidula Licharew 1934
Uncertain

Pentamerus darvasicus Tschernyschew
Permian

Neohemithyris Yahe&Hatai 1934
Phynchonellacea Gray 1848

Phynchonella lucida Gould 1861
Recent

Neokarpinskia Mizens 1977
Atrypacea Gill 1871

Karpinskia ivdelensis Khodalevich 1937
Devonian

Neokjaerina Levv&Nullo 1974
Stroohomenacea King 1846

Kjaerina florentina Levy&Nullo 1974
Ordovician

Neoliothyrina Sahni 1925
Terebratulacea Gray 1840

Neoliothyrina obesa Sahni 1925
Cretaceous

Neometabolloa Godefroid 1974
Pentameracea McCoy 1844

Neometabolipa duponti Godefroid 1974
Devonian

Neomunella Ozaki 1931
Spiriferacea Ming 1846

Spirifer chaoi Ozaki 1931
Pennsylvanian

Neophricadothyris Licharew 1934
Reticulariacea Waagen 1883

Squamularia asiatica Chao 1929
Permian

Neoplicatifera Ching,Liao&Fang 1974
Productacea Gray 1840

Plicatifera huangi Ustritsky 1960
Permian

Neoretzia Dagys 1963
Retziacea Waagen 1883

Retzia superbescens Bittner 1890
Triassic

Neorhynchia Thomson 1915
Phynchonellacea Gray 1848

Hemithyris strebeli Dall 1908
Recent

Neospirifer Fredericks 1924
Spiriferacea King 1846

Spirifer fasciger Keyserting 1846
Pennsytvanian-Permian

Neospirigerina Rzonsnitzkaja 1975
Atrypacea Gitt 1871

Ptectatrypa ossa Nativkin 1960
Devonian

Neostrophia Utrich&Cooper 1936
Porambonitacea Davidson 1853

Neostrophia subcostata Utrich&Cooper 1936
Ordovician

Neothecidetta Pajead 1970
Thecideacea Gray 1841

Thecidea antigua Goldfuss 1840
Jurassic

Neothyris Douvitte 1870
Terebratettacea King 1850

Terebratula tenticutaris Deshayes 1839
Tertlary-Recent

Neotreta Sobotev 1976
Acrptretacea Schuchert 1893

Neotreta tumida Sobotev 1976
Cambrian

Neowetteretla Dagys 1974
Rhynchonetlacea Gray 1848

Neowelleretta yesca Dagys 1974
Triassic

Nepasitoechia Havlicek 1979
Rhynchonetlacea Gray 1848

Nepasitoechia sartenaeri Havticek 1979
Mississippian

Nereidella Wang 1955
Entetetacea Waagen 184

Nereidella typa Wang 1955
Ordovician

Nervostrophia Caster 1939
Strophomenacea King 1846

Strophomena nervosa Hall 1843
Devorar

Neumanetta Harper&Boucot 1978
Stropheodontacea Caster 1939

Neumanetta vari ya Harper&Boucot 1978
Silurian

Neumayrithyris Tokuyama 1958
Terebratutacea Gray 1940

Neumayrithyris torinosuensis Tokuyama 1958
Jurassic

Nicotella Reed 1917
Orthacea Woodward 1852

Orthis actoniae Sowerby 1839
Ordovician

Nigeroptica Nativkin 1975
Productacea Gray 1943

Productus niper Gossetet 1882
Mississippian

Nikiforovaena Roucot 1063
Cyrtiacea Fredericks 1924

Spirifer fernanensis Nikiforova 1937
Silurian

Ningbingetta Roberts 1971
Rhynchonettacea Gray 1848

Ninobincietta ftexuosa Roberts 1971
Mississippian

Ninglangothyris Jin&Fang 1977
Dietasmatacea Schuchert 1913

Ningtangothyris subcircutaris Jin&Fang 1977
Triassic

Nipponithyris Yabe&Hatai 1934
Terebratellacea Kinp 1850

Nipponithyris nipponensis Yabe&Hatai 1934
Tertiary-Recent

Nisusia Walcott 1905
Pittingsellacea Schuchert 1893

Orthisina festinata nittings 1861
Cambrian

Niviconia Cooper&Grant 1974
Derbyiacea Stehli 1954

Meekella globosa King 1931
Permian

Nix Easton 1962
Chonetacea gronn 1862

Nix angulata Easton 1962
Mississppian

Nocturnettia Havlicek 1950
Entetetacea Waagen 1884

Orthis nocturna Barrande 1879
Ordovician

Nodetta Tachibana 1964
Productacea Gray 1840

Strophalosia nummutaris Winchett 1863
Devonian-lississippian

Noettingia Hall&Ctarke 1893
Porambonitacea Davidson 1833

Spirifer tscheffkini Verneuit 1845
Siturian

Nondia Boucot&Chiang 1974
Pentameracea McCoy 1844

Nondia canadensis Boucot&Chiang 1974
Silurian

Nordathyris Grunt 1977
Athyridacea McCoy 1844

Nordathyris bulkanensis Grunt 1977
Carboniferous

Nordetta Ljaschenko 1973
Reticutariacea Waagen 1883

ELytha orbicutata Ljaschenko 1959
Devonian

Nordispirifer Ljaschenko 1973
Splriferacea ring 1846

Nordispirifer ceteber Ljaschenko 1973
Devonian

Nordotoechla Tcherkesova 1965
Rhynchonettacea Gray 1848

Nordotoechia tumida Tcherkesova 1965
Devonian

Noretta Bittner 1890
Rhynchonettacea Gray 1848

Rhynchonetta settaris Laube 1865
Triassic

Notanoptia Gill 1950
Chonetacea Rronn 1862

Notanoptia pherista Gill 1950
Devonian

Nothopindak Cooper&Grant 1974
Derbyiacea Stehli 1954

Nothopindax egregius Cooper&Grant 1974
Permian

Nothorthis Ulrich&Cooper 1938
Orthacea Woodward 1852

Nothorthis delicatuta Utrich&Cooper 1938
Ordovician

Notiochonetes Muir-Wood 1962
Chonetacea Prono 1862

Chonetes skottsberqi Ctarke 1913
Devonian

Notoconchidium Gill 1950
Atrypacea Gill 1871

Pentamerus tasmaniensis Etheridge 1883
Devonian

Nototeptaena Gill 1951
Strophomenacea King 1846

Nototeptaena linguifera Gill 1951
Devonian

Notoparmella Johnson 1973
Atrypacea Gill 1871

Notoparmetta gitti Johnson 1973
Devonian

Notorygmia Cooper 1972
Terebrateltacea King 1850

Notorygmia abyssa Cooper 1972
Recent

Notosaria Cooper 1959
Rhynchonettacea Gray 1848

Terebratuta nigricans Sowerby 1846
Tprtiary-Recent

Notospirifer Harrington 1955
Reticulariacea Waagen 1883

Spirifer darwini Morris 1845
Permlan

Notostrophia Waterhouse 1973
Davidsoniacea King 1850

Notostrophia homeri Waterhouse 1973
Permian

Notothyrina Licharew 1936
nietasmatacea Schuchert 1913

Notothyris pont ica Licharew 1936
Permian

Notothyris Waagen 188?
Cryptonettacea Thomson 1926

Terebratuta subvesicularis Davidson 1862
Tercian

Notozyqa Cooper 1977
Cancettothyridacea Thomson 1926

Notozyga lowenstami Cooper 1977
Recent

Novettinetes Havticek&Racheboeuf 1979
Chonetacea Rronn 186?

Chonetes noveltus Rarrande 1879
Devonian

Novozemetia Tcherkesova 1973
Pentameracea McCoy 1844

Novozemetia olgae Tcherkesova 1973
Devonian

Nucteata Quenstedt 1868
Terebratutacea Gray 1840

Nucteata collina Ouenstedt 1868
Jurassic

Nucleatina Katz 196?
Dietasmatacea Schuchert 1913

Terebratuta nanctasi Coquand 1860
Cretaceous

Nucteatuta Hittner 1888
Dielasmatacea Schuchert 1913

Rhynchonella retrocita Suess 1855
Triassic

Nucleospira Hall 1859
Athyridacea McCoy 1844

Spiri fer ventri cosus Hall 1857
Silurian-Rermian

Nudauris Stehti 1954
Productacea Gray 1843

Nudauris diabloensis Stehti 1954
Permian

Nudirostralina Yang&xu 1966
Rhynchoneltacea Gray 1848

Nudirostralina subtrinodosi Yang&Xu 1966
Triassic

Nudisoiriferina Yang&Xu 1966
Spiriferinacea Davidson 1884

Nudispiriferina minima Yang&Xu 1966
Triassic

Nugnecelta Levy&Nulto 1974
Biltingseltacea Schuchert 1893

Nugnecella rafaelensis Levy&Nulto 1974
Ordovician

Nuguschetla Tjazheva 1960
Reticutariacea Waagen 1883

Nuguschella notita Tjazheva 1960
Devonian

Nurataella Lanci 1973
Cyrtiacea Fredericks 1924

Nurataella miranda Larin 1973
Silurian

Nurochonetes Ushatinskaia 1977
Chonetacea gronn 1862

Chonetes akkultukensis Ushatinskaia 1966
Devonian

Nyatamurhynchia Ching,Rong&Sun 1976
Rhynchonetlacea Gray 1848

Nyalamurhynchia Mirifica Ching,Rong&Sun 1976
Jurassic

Nyege Veevers 1959
Rhynchonellacea Gray 1848

Nyege scopimus Veevers 1959
Devonian

Nymphorhynchia Rzonsnitzkaja 1956
Rhynchonellacea Gray 1848

Nymphorhynchia bishofiodes Rzonsnitzkaja 1956
Devonian

Oanduporetla Hints 1975
Entetetacea Waagen 1884

Oanduporella reticulata Hints 1975
Ordovician

Obesaria Havlicek 1957
Reticutariacea Waagen 1883

Spirifer indifferens 3arrande 1848
Devonian

Obtongarcula Elliott 1959
Terebrateltacea Ming 1850

Terebratula oblonga Sowerby 1826
Cretaceous

Obnixia Hoover 1979
Cryptonellacea Thomson 1926

Terebratula thaynesiana Girty 1927
Triassic

Obotella Pittings 1861
Oboteltacea watcott&Schuchert 1908

Oboletta chromatica Pillings 1861
Cambrian

Obolellina gitlings 1871
Trimerettacea navidson&King 1872

Obolus canadensis Billings 1858
Silurian

Obolopsis Saito 1936
Lingulacea Menke 1823

Obolopsis margaritae Saito 1936
Cambrian

Obolus Eichwald 1829
Lingutacea Menke 1829

Obolus apoltinis Eichwald 1829
Cambrian-Ordovician

Obovothyris Ruckman 1927
Zeitteriacea Allan 1940

Obovothyris magnobovata Buckman 1927
Jurassic

Obturamentetla Amsden 1958
Rhynchonettacea Gray 1848

Witsonia wadei nimbar 1919
Devonian

Ochotathyris nagys 1974
Athyridacea McCoy 1844

Oxycolpella ochotica nagys 1965
Triassic

Ochotorhynchia Dagys 1968
Rhynchonellacea Gray 1848

Ochotorhynchia omolonensis nagys 1968
Jurassic

Ocnerorthis Bell 1941
Orthacea Woodward 1852

Ocnerorthis cooperi Bell 1941
Cambrian-Ordovician

Ocruranus Liu 1079
Uncertain

Ocruranus finiat liu 1979
Cambrian

Odarovithyris Tchorszhewsky 1971
Loboidothyridacea Makridin 1964

Odarovithyris odarovi Tchorszhewsky 1971
Jurassic

Odontospirlfer Dunbar 1955
Spiriferinacea Davidson 1884

Odontospirifer mirabilis Dunbar 1955
Permian

Oehtertella Hall&Clarke 1890
Discinacea Gray 1842

Discina pleurites Meek 1875
Mississippian-Pennsylvanian

Oepikina Salmon 1942
Strophomenacea King 1846

Oepikina septata Salmon 1942
Ordovician

Oepikinella Wilson 1944
Strophomenacea King 1846

Oeoikinetta affinis Wilson 1944
Ordovician

Ogbinia Sarytcheva 1965
Productacea Gray 1840

Ogbinia dzhagrensis Sarytcheva 1965
Permian

Ogilvielta Lenz 1968
Atrypacea Gill 1871

Ogitviella rotunda Lenz 1968
Devonian

Okathyris Smirnova 1975
Lobollothyrilacea Makridin 1964

Okathyris chevkinensis Smirnova 1975
Cretaceous

Oldhamina waagen 1883
lyttoniacea Waanen 1983

Betterophon decipiens Koninck 1863
Permian

Oldhaminetla wanner&Sieverts 1935
Lyttoniacea Waagen 1983

Oldhamlnella phitocrina wanner&Sleverts 1935
Permian

Oteneothyris Cooper 1942
Terebratutacea Gray 1840

Terebratula hartan, Morton 1828
Tertiary

Oteorthis Havlicek 1968
Orthacea woodward 1852

Oteorthis porosa Havlicek 1968
Ordoviclan

Olgerdia Grigorjewa 1977
Spiriferacea King 1846

Otgerdia zavodowskii Gripprjewa 1977
Permian

Otigomys Schuchert&Cooper 1931
Orthacea Woodward 1952

Orthls eeporrecta Linnarsson 1876
Cambrian

Oligootycherhynchus Sartenaer 1970
Rhynchonetlacea Gray 1848

Terebratula hexatoma Schnur 1851
Devonian

Otigorhachis Imbrie 1959
Strophalosiacea Schuchert 1913

Oligorhachis oligorhachis Imbrie 1959
Devonian

Oligorhynchia Cooper 1935
Rhynchonellacea Gray 1848

Oligorhynchia subplaoa Cooper 1935
Ordovician

Oligorthis Utrich&Cooper 1936
nrthacea Woodward 1852

Oligorthis arbucklensis Larich&Cooper 1936
Ordovician

Oligothyrina Cooper 1956
Dielasmatacea Schuchert 1913

Oligothyrina alleni Cooper 1956
Pennsytvanian-Permian

Oliveiretla Oliveira 1934
Stringocephalacea King 1850

Centronetla margarlda herby 1890
Devonian

Ombonia Caneva 1906
Derbyiacea Stehli 1954

Ombonla caneval merla 1930
Permian

Omnutakhella Lopushinskaja 1976
Atrypacea nitt 1871

Omnutakhetta bazhenovae Lopushinskaja 1976
Silurian

Dmolonelta Moisseiev 1936
Rhynchonetlacea Gray 1848

Omolonella omolonensis Moisseiev 1936
Triassic

Omolonia Alekseeva 1967
Stringocephalacea King 1850

Omotonia antigua Alekseeva 1967
Devonian

Omolonothyris Dagys 1968
Loboidothyridacea makridin 1964

Omolonothyris inopinatus Dagys 1968
Jurassic

Oncosarina Cooper&Grant 1969
Productacea Gray 1840

Oncosarina sninicostata Cooper&Grant 1969
Permian

Onnielta mancroft 1928
Enteletacea Waagen 1884

Onniella broeggeri Pancroft 1928
Ordovician

Onnizetina Havlicek 1974
Enteletacea Waagen 1884

Onnizetina metlita Havticek 1974
Ordovician

Onopordumaria Waterhouse 1971
Productacea Gray 1840

Onopordumaria punctura waterhouse 1971
pennsylvanian

Onychoplecia Cooper 1956
Triolesiacea Schuchert 1913

Onychoplecia brevirostris Cooper 1956
Ordovician

Onychotreta Utrich&cooper 1936
Tripleslacea Schuchert 1913

Onychotreta mesleri Ulrich&Cooper 1936
Silurian

Opikelta Amsden 1968
Plectambonitacea Jones 1928

Leangella dissiticostella Amsden 1963
Silurian

0Oisthotreta Palmer 1954
Acrotretacea Schuchert 1893

Opisthotreta depressa Palmer 1954
Cambrian

Opsiconidion Ludvigsen 1974
Acrotretacea Schuchert 1893

Opsiconidion arcticon Ludvigsen 1974
Devonian

Orbicoelia Waterhouse&Piyasin 1970
Cyrtiacea Fredericks 1924

Orbicoelia fraterculus Waterhouse&Piyasin 1970
Permian

Orbicuta Cuvier 1998
Craniacea Menke 1828

Patella anomala Muller 1976
Cretaceous-Recent

Orbiculoidea Orbigny 1847
Discinacea Gray 1840

Orbicula forbesii Davidson 1848
Ordovician-Permian

Orbiculopora Patrukova 1969
Discinacea Gray 1840

Orbicutopora sobotensis Patrukova 1969
Devonian

Orbiculothyris Wotfart 1968
Discinacea Gray 1840

Orbicutothyrls costellata Wotfart 1968
Ordovician

Orbinaria Muir-Wood&Cooper 1960
Productacea Gray 1840

Productella pyxidata Hall 1858
Devonian-mississippian

Orbirhynchia Pettitt 1954
Rhynchonetlacea Gray 1848

Orbirhynchia orbignyi Pettitt 1954
Cretaceous

Orbithete Sdzuy 1955
Acrotretacea Schuchert 1893

niscina contraria Rarrande 1868
Ordovician

Crenburgetta Pavtova 1969
Reticulariacea Waagen 1883

Orenburgetla uratica Pavtova 1969
Carboni ferous

Orientospira nagys 1965
Spiriferinacea Davidson 1884

Orientosoira gregaria Dagys 1965
Triassic

Orientospirifer Hou&Xian 1975
Spiriferacea King 1846

Eospiriferina nakaotingensis Hou 1959
Devonian

Orientothyris Katz&Popov 1974
Terebratulacea Gray 1840

Gryphus orientalis Vantschurov 1966
Cretaceous

Origostrophia Mitchell 1977
Strophomenacea King 1846

Origostrophia fragilis Mitchell 1977
Ordovician

Oriskania Hall&Clarke 1893
Stringocephatacea King 1850

Oriskania navicella Hall&Clarke 1893
Devonian

Orlovirhynchia Dagys 1968
Rhynchonellacea Gray 1848

Septatiphoria viligaensis Moisseiev 1947
Jurassic

Ornatothyrelta Dagys 1974
Dallinacea Reecher 1993

Ornatothyrella ornata Dagys 1974
Triassic

Ornatothyris Sahni 1929
Terebratulacea Gray 1840

Terebratula sulcifera Morris 1847
Cretaceous

Ornithella Deslongchamps 1884
Zeitleriacea Allan 1940

Terebratula ornithocephata Sowerby 1815
Jurassic

Ornithothyris Sahni 1925
Terebratulacea Gray 1840

Ornithothyris carinata Sahni 1925
Cretaceous

Ornothyrella Havlicek 1971
Athyridacea McCoy 1844

Ornothyrelta ornatella Havlicek 1971
Ordovician-Silurian

Orthambonites Pander 1833
Orthacea Woodward 1852

Orthambonites transversa Pander 1833
Ordovician

Orthidiella Utrich&Cooper 1936
Orthacea Woodward 1152

Orthidiella longwelli Utrich&Cooper 1936
Ordovician

Orthidium Hall&Clarke 1892
Orthacea Woodward 1852

Orthis gemmiculd Pillings 1862
Ordovician

Orthis Dalman 1828
Orthacea woodward 1852

Orthis callactis palman 1828
Ordovician

Orthisocrania Powelt 1963
craniacea menke 1828

Pseudocrania divaricata McCoy 1851
Ordovician

Orthoidea Friren 1876
Terebratulacea Gray 1840

Orthoidea liasina Priren 1876
Jurassic

Orthonomaea Hall 1894
Atrypacea Gill 1871

Orthis erratica Hall 1847
Ordovician

Orthopteura Imbrie 1959
Davidsoniacea King 1150

Orthopteura rhipis lmbrie 1959
Devonian

Orthorhynchula Hallgrlarke 1893
Phynchonellacea Gray 1848

Orthis linneyi James 1881
Ordovician

Orthorhynchuloides Williams 1962
Phynchonellacea Gray 1848

Hemithyris nasuta McCoy 1852
Ordovician

Orthospirifer Pitrat 1975
Spiriferacea King 1846

Orthospirifer missouriensis Pitrat 1975
Devonian

Orthostrophetla Amsden 1968
Orthacea Woodward 1852

Orthostrophia dartae Schuchert&Cooper 1932
Silurian

Orthostrophia Hall 1883
Orthacea Woodward 1852

Orthis strpphomenoides Hall 1857
Siturian-Devonian

Orthotetelta King 1931
Derbyiacea Stehli 1954

Orthotetella wolfcampensis King 1931
Permian

Orthotetes Pischer 1829
Davidsoniacea King 1850

Orthotetes radiata Fischer 1850
Pennsylvanian-Permian

Orthothetina Schellwlen 1900
Davidsonlacea King 1850

Orthotetes persicus Schetlwien 1900
Pennsylvanian-Permian

Orthothrix Geinitz 1847
Strophatosiacea Schuchert 1913

Orthis excavata Geinitz 1842
Permian

Orthothyris Cooper 1955
Terebratutacea Gray 1840

Orthothyris radiata Cooper 1955
Cretaceous

Orthotichia Hall&Clarke 1892
Enteletacea Waagen 1884

Orthis morganiana Derby 1874
Pennsylvanian-Permian

Orthotoma Ouenstedt 1869
Terebratutacea Gray 1840

Terebratuta heyseana Ouenstedt 1869
Jurassic

Orthotropia Hall&Clarke 1893
Entetetacea Waagen 1884

Orthotropla dolomitica Hall&Clarke 1893
Silurian

Orutgania Sotomina&Tschernjak 1961
Spiriferacea King 1846

Orutgania naumovi Solomina 1961
Pennsytvanian

Orusia Watcott 1905
Orthacea Woodward 1852

Anomites lenticularis Wahtenberg 1821
Cambrian

Ostogonites Opik 1939
Gonambonitacea Schuchert&Cooper 1931

Ostogonites costellatus Opik 1939
Ordovician

Ostomena Sojeldnaes 1957
Strophomenacea King 1846

Ostomena ostoensis Spjeldnaes 1957
Ordovician

Osmaretta Pearson 1977
Rhynchonettacea Gray 1848

Rhynchonetta starhembergica Zugmayer 1880
Triassic-Jurassic

Otarietta Waterhouse 1978
Productacea Gray 1840

Marginifera otaria Grant 1976
Permian

Otospirifer Hou&Xian 1975
Spirferacea King 1846

Otospirifer shipaiensis Hou&Xian 1975
Devonian

Otusia watcott 1905
Orthacea Woodward 1852

Orthis sandbergi Winchelt 1886
Cambrian

Ovatella Walmsley&Boucot 1975
Entetetacea Waagen 1884

Ptatyorthis ovalis Paskevicius 1962
Silurian

Ovatia Muir-Wood&Cooper 1960
Prodnctacea Gray 1840

Ovatia elongata Muir-Wood&Cooper 1960
Mississipoian

Overtonia Thomas 1914
Productacea Gray 1840

Producta fimbriata Sowerby 1824
Mississippian

Overtoniina Grunt 1973
Productacea Gray 1843

Overtoniina mamazairica Grunt 1973
Permian

Oxtosia Utrich&Cooper 1936
hiscinacea nray 1840

Eunoa accota Clarke 1902
Ordovician

Oxoptecia Witson 1913
Triplesiacea Schuchert 1913

Oxoplecia cathouni Witson 1913
Ordovician-Siturian

Oxycotpetta nagys 1962
Athyridacea mccoy 1844

Spirigera oxycolpos Emmrich 1853
Triassic

Oxypteurorhynchia Ptodowski 1973
Rhynchonettacea Gray 1848

Oxypteurorhynchia acutiplicata Ptodowski 1973
Ordovician-Siturian

Pachygtossetta Cooper 19t0
Lingutacea mente 1828

Pachygtossa dorsiconvexa Cooper 1956
Ordovician

Pachymagas Ihering 1903
Terebratettacea King 1850

Terebratetta tehuetcha Ihering 1903
Tertiary

Pachythyris Goultier 1976
Terebratutacea Gray 1840

Terebratuta arduennensis Douvitte 1886
Jurassic

Pacificocoella noucot 1975
Chonetacea Pronn 1862

Leptocoella rsurphyi Johnson 1970
Devonian

Pacifithyris Hatai 1939
Terebratettacea King 1850

Terebratalla xanthica Dalt 1920
Recent

Paeckelmanetta licharew 1934
Spiriferacea King 1846

Spirifer dieneri Tschernyschew 1902
Permian

Pahtenelta Schuchert&Cooper 1931
Clitambonitacea Winchett&Schuchert 1893

Orthis trigonuta Eichwatd 1840
Ordovician

Pataeobolus Matthew 1909
Lingulacea menke 1929

Pataeobotus hretonensis Matthew 1899
Cambrian

Palaeochoristites Sokolskaja 1941
Spiriferacea King 1946

Spirifer cinctus Keyserting 1847
Mississippian

Pataeogtossa rockerett 1911
lingulacea menke 1828

Linoula attenuata Sowerby 1839
Ordovician

Pataeosoirifer martynova&Sverbilova 1968
Spiriferacea King 1846

Cyrtospirifer karagatshicus Sverbilova 1963
Devonian

Pataeostrophia qtrich&Cooper 1935
Porambonitacea Davidson 1853

Syntrophla orthla Watcott 1905
Cambrian-Ordoviclan

Pataeostrophomena Hotteoant 1916
Plectambonitacea Jones 1928

Strophomena concava Schmidt 1858
Ordovician

Rataferella Snrlestersbach 1942
Atrypacea nilt 1971

nataferetta rhenana Soriestersbach 1942
Devonian

Patdiskia Gorjansky 1969
Lingutacea menke 1828

Patdiskia ooscuricostata Gorjansky 1969
Ordovician

Patinorthis Utrich&Cooper 1936
Ptectambonitacea Jones 1928

Patinorthis cloudi Utrich&Cooper 1936
Ordovician

Pamirotheca Dagys 1974
Thecosplracea Pittner 1890

Pamirotheca autacothyridiformis Dagys 1974
Triassic

Pamirothyris nalys 1974
Terebratutacea Gray 1840

lobothyris kushtini Dagys 1963
Triassic

Pamirothyropsis Ovtsharenko 1979
loboidothyridacea makridin 1964

Pamirothyropsis viatovi Ovtsharenko 1975
Jurassic

Pammegetherhynchus Sartenaer 1977
Rhynchonettacea Gray 1848

Pammegetherhynchus merodae Sartenaer 1977
Devonlan

Pampoecitorhynchus Sartenaer 1968
Rhynchonellacea Gray 1848

Rhynchonetta nux Gosselet 1887
Devonian

Panderina Schuchert&Cooper 1931
Orthacea woodward 1852

Productus abscissus Pander 1830
Ordovician

Pantettaria natt 1919
Terebratetlacea King 1850

Terebratuta monstruosa Scacchi 1836
Tertiary-Recent

Papitiotinus Waterhouse&Gupta 1977
Productacea Gray 1849

Papitiolinus eishmakami Waterhouse&Gupra 1977
Mississipplan

Papittostrophia Havticek 1967
Stropheodontacea Caster 1939

leotaena consobrina Barrande 1848
Devonian

Paraacanthothyris Kamyschan 1973
Rhynchonettacea Gray 1848

Paraacanthothyris paucicostata Kamyschan 1973
Jurassic

Parabifollum Pajaud 1966
Thecideacea Gray 1840

Parablfolium priscum Pajaud 1966
Jurassic

Parabornhardtina Sun&Hou 1964
Stringoceohalacea King 1850

parabornhardtina yunnanensis Suratiou 1964
Devonian

Paracapitlithyris Katz&Popov 1974
Terebratulacea Gray 1840

Paracapittithyris atexeevi Katz&Popov 1974
Cretaceous

Parachonetes Johnson 1966
Chonetacea Pronn 1862

Chonetes macrostriata Walcott 1884
Devonian

Parachoristites Parchatova 1968
Spiriferacea King 1846

Parachoristites votongaensis Rarchatova 1968
Carboniferous

Paraconchidium Pong&Yang 1974
Pentameracea McCoy 1844

Paraconchidium shigianensis Pong&Yang 1974
Silurian

Paracostanoplia Xu 1977
Plicanoptitacea Xu 1977

Paracostanoplia mirabilis Xu 1977
Devonian

Paracraniops Williams 1963
linqulacea Menke 1828

Craniops pararia Williams 1962
Ordbvician

Paracrothyris Wu 1974
Stringocephatacea King 1859

Paracrothyris distorta Xu 1974
Devonian

Paracyrtiopsis Gatinaud 1949
Spiriferacea King 1846

Cyrtiopsis spiriferoides Grabau 1931
Devonian

Paradoxothyris Xu 1978
nietasmatacea Schuchert 1913

Paradoxothyris cyclis Xu 1978
Triassic

Paradygella Liao&Sun 1974
Dielasmatacea Schuchert 1913

Paradygetla magna Liao&Sun 1974
Triassic

Paraemanuella Yanq 1977
Cyrtiacea Fredericks 1924

Paraemanuella orbicularia Yang 1977
Devonian

Parakeysertingina Fredericks 1916
Lyttoniacea Waagen 1883

Keysertingina darvasica Tschernyschew 1914
Permian

Paralazutkinia Jiang 1978
Spiriferacea King 1946

Paratazutkinia p nghuangshanensis Jiang 1978
Devonian

Paratdingia Pichardson 1973
Terebratellacea King 1850

Terebratella woodsii Tate 1880
Tertiary

Paratepismatina Yang&Xu 1966
Suessiacea Waagen 1833

Paralepismatina semiconica Yang&Xu 1966
Triassic

Parateptostrophia Harper&Boucot 1978
Stropheodontacea Caster 1939

Leptostrophia clarkei Chatterton 1973
Devonian

Paralletelasma Cooper 1956
Pentameracea McCoy 1844

Parallelelasma pentagonum Cooper 1956
Ordovician

Parattetora Carter 1974
Spiriferacea King 1846

Spirifer marionensis Shumard 1855
Devonian

Paratyttonia Wanner&Sieverts 1935
Lyttoniacea Waagen 1883

Paralyttonia Perm anica Wanner&Sieverts 1935
Permian

Paramarginatia Yanci 1978
Productacea Gray 1840

Paramarginatia weiningensis Yang 1978
Mississippian

Paramarqinifera Fredericks 1916
Productacea Gray 1840

Marqinifera ctarkei Tschernyschew 1902
Pennsylvanian-Permian

Paramartinia Reed 1949
Reticutariacea Waagen 1933

Martinia tingulata Reed 1949
Carboniferous

Paramentzetia Xu 1978
Reticulariacea Waagen 1883

Paramentzetia ovata Xu 1978
Triassic

Paramerista Su 1976
Athyridacea McCoy 1844

Paramerista breviseptata Su 1976
Devonian

Paramesotobus Afanasjeva 1975
Chonetacea Proni 1862

Paramesolohus ivanovae Afanasjeva 1975
Pennsytvanian

Paramonticulifera Tong 1978
Productacea Gray 1847

Paramonticulifera incosta Tong 1978
Peinan

Paranaia Ctarke 1913
Stringocephatacea King 1850

Centronella margarida Deroy 1893
Devonian

Paranorella Ctoud 1944
Rhynchonettacea Gray 1848

Paranorella imperialis Cloud 1944
Permian

Paranorettina Dagys 1974
Rhynchonellacea Gray 1848

Paranorellina parisi Dagys 1974
Triassic

Paraphotidostrophla Johnson 1971
Stropheodontacea Caster 1939

Parapholidostrophia haroeri Johnson 1971
bevonian

Paraphorhynchus Welter 1905
Rhynchonetlacea Gray 1848

Paraphorhynchus etongatum Welter 1905
Mississippian

Paraplicanoptia Xu 1977
Pticanoplitacea Xu 1977

Parapticanoplia nana Xu 1977
Devonian

Parapugnax Schmidt 1964
Rhynchonettacea Gray 1848

Parapugnax brecciae Schmidt 1964
Devonian

Paraputchratia Chan 1979
Productacea Gray 1840

Productus pustutosus Kayser 1883
Permian

Parareticularia Lee&Gu 1976
Reticularlacea Waagen 1883

Parareticularia spiriferiformis Lee&Gu 1976
Permian

Pararhioidium Boucot&Johnson 1979
Pentameracea McCoy 1844

Pentamerus tenuistriatus Lindstrom 1880
Silurian

Paraschizophgria Lazares 1976
Entetetacea Waagen 1884

Schizophoria woodi Pond 1941
Devonian

Paraspirifer Wedekind 1926
Spiriferacea King 1846

Spirifer cuttri juqatus Roemer 1844
Devonian

Paraspiriferina Reed 1944
Spiriferinacea Davidson 1884

Spiriferina ghundiensis Reed 1944
Permian

Parastrincjocephatus Struve 1965
Stringocephatacea King 1850

Strygocephatus dorsatis Archlac&Verneult 1842
Devonian

Parastrophina Schuchert&LeVene 1929
Porambonitacea Davidson 1853

Atrypa hemipticata Hall 1847
Ordovician

Parastrophinella Schuchert&Cooper 1931
Porambonitacea Davidson 1853

Pentamerus reversus Billings 1857
Ordovician-Siturian

Parastrophonetta Pubtichenko 1956
Strophomenacea King 1846

Strophomena anaglypha Kayser 1871
Devonian

Paratetratomia Yang 1977
Rhynchonellacea Gray 1848

Paratetratomia xiangzhouensis Yang 1977
Devonian

Parathec idea gackhaus 1959
Thecideacea Gray 1840

Thec idea hieroglyphica Goldfuss 1840
Cretaceous

Parathyridina Schuchert&LeVene 1929
Terebratulacea Gray 1840

Parathyris oticatoides Douvitte 1915
Jurassic

Parathyrisina Wang 1974
Athyrisinacea Grabau 1931

Parathyrisina bella Wang 1974
Devonian

Paratreta Riernat 1973
Acrotretacea Schuchert 1893

Paratreta similis Biernat 1973
Ordovician

Parazyga Palli&Clarke 1893
Retziacea Waagen 1883

Atryoa hirsuta Hall 1857
Devonian

Parenteletes King 1931
Enteletacea Waagen 1884

Parenteletes cooperi King 1931
Pennsylvanian-Permian

Parmorthina Havticek 1975
Enteletacea Waagen 1884

Parmorthis pragensis Havlicek 1956
Silurian

Parmorthis Schuchert&Cooper 1931
Enteletacea Waagen 1884

Orthis elegantula palman 1829
Si Lunas

Paromoeopyoma Sartenaer 1968
Rhynchonellacea Gray 1848

Paromoeopyoma bellicastellana Sartenaer 1968
Devonian

Paruncinella Waterhouse&Gupta 1978
Retziacea Waagen 1883

Uncinetti middlemissi Diener 1915
Mississippian

Parvirhynchla Buckman 1917
Rhynchonellacea Gray 1848

Rhynchonella parvula Deslongchamps 1862
Jurassic

Paryphorhynchopora Simorin 1956
Rhynchonellacea Gray 1848

Pugnoides korsakpaica Malivkin 1937
Devonian-Carboniferous

Patagorhynchia Allan 1938
Rhynchonellacea Gray 1848

Rhynchonella patagonica lhering 1903
Tertiary

Paterina Reecher 1891
Paterinacea Schuchert 1893

Obolus labradoricus Rillings 1861
Cambrian

Paterorthis Havlicek 1971
Orthacea Woodward 1852

Paterorthis paterna Havlicek 1971
Ordovician

Paterula narrande 1879
Lingulacea Menke 1828

Paterula bohemica Barrande 1879
Ordovician

Paucicostella Cooper 1956
Ptectambonitacea Jones 1928

Paucicostella canadensis Cooper 1956
Ordovician

Paucicrura Cooper 1956
Enteletacea Waagen 1884

Orthis rogata Sardeson 1892
Ordovician

Paucispinifera Muir-Wood&Cooper 1960
Productacea Gray 1840

Paucisoinifera auriculata Muir-Wood&Cooper 1960
Permian

Paucistrophia Wang&Zhu 1979
Stropheodontacea Caster 1939

Radiomena concinnusa Wang&Wu 1974
Devonian

Paulonia Nalivkin 1925
Cyrtiacea Fredericks 1924

Spirifer ranovensis Peetz 1893
Mississippian

Paurogastroderhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Camarotoechia nalivkini Abramian 1957
Devonian

Paurorhyncha Cooper 1942
Rhynchonellacea Gray 1848

Rhynchonella endtichi Peck 1875
Devonian

Paurorthina Rubel 1961
Ente letacea waagen 1884

Paurorthina resima Rubel 1961
Ordovician

Paurorthis Schuchert&Cooper 1931
Enteletacea Waagen 1984

Orthambonites parva Pander 1830
Ordovician

Payuella Grabau 1934
Rhynchonellacea Gray 1848

Payuella obscura Grabau 1934
Permian

Pectorhyncha McLearn 1918
Rhynchonellacea Gray 1848

Atrypa obtusiplicata Hall 1852
Si Lunas

Peculneithyris Smirnova 1972
loboidothyridacea makridin 1964

Peculneithyris longiusculus Smirnova 1972
Cretaceous

Peetzatrypa Rzonsnitzkaja 1975
Atrypacea Gill 1871

rentatrypa tschumyschensis Rzonsnitzkaja 1968
Devonian

Pegmarhynchia Cooper 1955
Rhynchonetlacea Gray 1848

Pegmarhynchia zimmi Cooper 1955
Devonian

Pegmathyris Hatai 1938
Terebratellacea King 1850

Pallina niyatokoensis Hatai 1936
Tertiary

Pegmatreta Bett 1941
Acrotretacea Schuchert 1893

Pegmatreta perptexa gen 1941
Cambrian

Pelagodiscus Dall 1908
Discinacea Gray 1840

Discina atlantica King 1868
Recent

Peleicostella Havlicek 1971
Enteletacea Waagen 1834

Spiri.fer peleus Barrande 1879
Devonian

Pelonomia Cooper 1956
Plectambonitacea Jones 1928

Orthis delicatula Billings 1865
Ordovician

Pembrostroohia Bassett 1971
Strophomenacea King 1846

Amphistrophia freshwaterensis Bassett 1971
Silurian

Penicutauris muir-Wood&Cooper 1963
Productacea Gray 1840

Productus ivesi King 1931
Persian

Pennospiriferina ragys 1965
Spiriterinacea Davidson 1884

Pennospiriferina popovi Pagys 1965
Triassic

Pentactinetla Bittner 1890
Athyridacea McCoy 1844

Terebratuta ouinguecostata Munster 1841
Triassic

Pentagonla Cozzens 1846
Athyridacea McCoy 1844

Pentagonia neer sil Cozzens 1846
Devonian

Pentameretla Hall 1867
Pentameracea McCoy 1844

Atrypa arata Conrad 1841
Devonian

Pentamerifera Xhodalevich 1939
Pentameracea McCoy 1844

Pentamerus tattiensis Tschernyschew 1893
Silurian

Pentameroides Schuchert&Cooper 1931
Pentameracea McCoy 1844

Pentamerus oblongus Hall&Clarke 1893
Silunar

Pentamerus Sowerby 1812
Pentameracea McCoy 1844

Pentamerus obiongns Sowerny 1839
Silurlan

Pentlandella Poucot 1964
Atrypacea Gill 1871

Rhynchonetla pentlandica Haswell 1865
Silurian

Pentlandina Bancroft 1949
Strophomenacea King 1846

Strophomena parva Bancroft 1949
Silurian

Penzhinothyris Smirnova 1969
Loboidothyridacea Makridin 1964

Penzhinothyris plana Smirnova 1969
Cretaceous

Perakia Hamada 1969
Phynchonellacea Gray 1848

Perakia undutata Hamada 1969
Devonian

Perditocardinia Schuchert&Cooper 1931
Entetetacea Waagen 1884

Orthis dubia Hall 1858
Mississipplan-Permian

Peregrinella Oehlert 1887
Rhynchonellacea Gray 1848

Terebratula peregrina Buch 1835
Cretaceous

Peregrineltoidea Dagys 1968
Rhynchonellacea Gray 1848

Peregrinelloidea malkovi Dagys 1968
Jurassic

Periallus Hoover 1979
Dattinacea Peecher 1893

Perialtus woodsidensis Hoover 1979
Triassic

Perichonetes Xu 1979
Chonetacea Rronn 1862

Perichonetes mirabitis Xu 1979
Devonian

Peridatejina Havticek 1973
Entetetacea Waagen 1884

Datejina periens Havticek 1956
Devonian

Perigeyerella Wang 1955
Davidsoniacea King 1850

Pericleyerella costettata Wang 1955
Permian

Perimecocoelia Cooper 1956
Porambonitacea Davidson 1853

Perimecocoetia semicostata Cooper 1956
Orlovician

Perissothyris Carter 1967
Spiriferacea King 1846

Perissothyris masonensis Carter 1967
Mississippian

Peritritoechia Xu,Rong&Liu 1974
Ctitambonitacea Winchell&Schuchert 1893

Peritritoechia imbricatia Xu,Rong&Liu 1974
Ordovician

Permianetla He&Zhu 1979
Permianettacea He&Zhu 1979

Permianella typica He&Zhu 1979
Permian

Permicola Koczyrkevicz 1976
Dielasmatacea Schuchert 1913

Permicola oticatus Koczyrkevicz 1976
Permian

Permochonetes Afanasjeva 1977
Chonetacea Pronn 1862

Permochonetes pamirlcus Afanasjeva 1977
Permian

Permophricodothyris Pavlova 1965
Reticutariacea Waagen 1883

Permophricodothyris ovata Pavtova 1965
Permian

Permorthotetes Thomas 1958
Davidsoniacea King 1950

Permorthotetes catlytharrensis Thomas 1958
Permlan

Permospirifer Kulikov 1950
Spiriferacea King 1846

Spirifer keysertingi Netschajew 1911
Permian

Permundaria Nakamura,Kato&Choi 1970
Productacea Gray 1840

Permundaria asiatica Nakamura et al 1970
Permian

Perrierithyris Atmeras 1971
Terebratutacea Gray 1840

Terebratula dorsopticata Destongchamps 1856
Jurassic

Peshlatrypa Xian 1978
Atrypacea Gill 1871

Atrypa oeshiensis Crabau 1931
Devonian

Pesterevatrypa Rzonsnitzkaja 1975
Atrypacea Gill 1871

Pesterevatryoa matosatairica Pzonsnitzkaja 1975
Devonian

Petasmaia Cooper&Grant 1969
Lyttoniacea Waagen 1883

Petasmaia expansa Cooper&Grant 1969
Permian

Yetasmatherus Cooper&Grant 1969
Rhynchonellacea Gray 1848

Petasmatherus opulus Cooper&Grant 1969
Permlan

Petria Mendes 1961
Dielasmatacea Schuchert 1913

Waldheimia coutinhoana Derby 1874
Pennsytvanian

Petrocrania Raymond 1911
Crani area Menke 1828

Cranlella meduanensis Oehtert 1888
Orlovician-Permian

Petroria Witson 1926
Plectambonitacea Jones 1928

Petroria rugosa Wilson 1926
Ordovician

Pexidella Pittner 1890
Athyridacea McCoy 1844

Spirifer strohmayeri Suess 1855
Triassic

Phapsirhynchia Pajaud 1976
Rhynchonellacea Gray 1848

Phapsirhynchia sanctapaulensis Pajaud 1976
Tertiary

Pharcidodiscus Roberts 1976
Productacea Gray 1840

Pharcidodiscus boulderensis Roberts 1976
Carboni ferous

Pharetra Boten 1998
Lingulacea Menke 1823

Pharetra monoculoides Polten 1998
Ordovician-Recent

Philhedra Koken 1889
Craniacea Menke 1829

Philhedra haltica Koken 1889
Ordovician-Carboniferous

Philhedrella Kozlowski 1929
Craniacea Menke 1828

Philhedra mimetica Kozlowski 1929
Silurian

Phlogoiderhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Uncinulus arefactus Veevers 1959
revonian

Phoenicitoechia Havlicek 1960
Rhynchonellacea Gray 1848

Terebratula phoenix Barrande 1847
Devonian

Pholidostrophia Hall&Clarke 1892
Strophomenacea King 1846

Strophomena nac.rea Hall 1857
Silurian-Devonian

Phragmophora Cooper 1955
Enteletacea Waagen 1884

Phradmophora schnuri Cooper 1955
Devonian

Phragmorthis Cooper 1956
Orthacea Woodward 1852

Phragmorthis buttsi Cooper 1956
Ordovician

Phraqmostrophia Harper et al 1967
Strophomenacea King 1946

Phragmostrophia merriami Harper et al 1967
Devonian

Phragmothyris Cooper 1955
Terebratellacea King 1850

Phraqmothyris cubensis Cooper 1955
Tertiary

Phrenophoria Cooper&Grant 1960
Rhynchonellacea Gray 1848

Phrenoonoria subcarinata Cooper&Grant 1969
Permian

Phricodothyris George 1932
Reticulariacea Waagen 1883

Phricodothyris lucerna George 1932
Mississippian-Permian

Phymatothyris Cooper&Muir-Wood 1951
Terebratulacea Gray 1840

Palasiella kerkyraea Renz 1932
Jurassic

Physemella nodefroid 1974
Pentameracea McCoy 1844

Physemella maillieuxi nadetroid 1974
Devonian

Physetorhyncha Sartenaer&Rozman 1968
Rhynchonellacea Gray 1848

Pugnax biloba Pozman 1960
Devonian

Physatreta Rowell 1966
Acrotretacea Schuchert 1893

Acrotreta spinosa Walcott 1905
Cambrian

Piarorhynchella Dagys 1974
Rhynchonel lacea Gray 1848

Piarorhynchel la mangyshlakensis nagys 1974
Triassic

Piarorhynchia Ruckman 1917
Phynchonellacea Gray 1848

Rhynchonella lineata Davidson 1878
Triassic-Jurassic

Piarothyris Sahni 1925
Terebratulacea Gray 1840

Piarothyris rotunda Sahni 1925
Cretaceous

Pictothyris Thomson 1927
Terebratellacea King 1850

Anomia Dicta Dillwyn 1817
Tertiary-Recent

Pinaxiothyris ragys 1968
Terebratulacea Gray 1840

Pinaxiothyris campestris Dagys 1968
Jurassic

Pinghuangella Jiang 1978
Spiriferacea King 1846

Pinghuangella bisulcata Jiang 1978
Devonlan

Pinguaella Boucot&Johnson 1979
Pentameracea McCoy 1844

Rhipidium pingue Amsden 1949
Silurian

Pinguispirifer Havticek 1957
Spiriferacea King 1846

Spirifer infirmus Parrande 1879
Devonian

Pionodema Foerste 1912
Ente letacea Waagen 1844

Orthis subaequata Conrad 1843
Ordovician

Pionomena Cooper 1956
Strophomenacea King 1846

Pionomena neumani Cooper 1956
Ordovician

Pionorthis Schuchert&Cooper 1931
Orthacea Woodward 1852

Orthis sola Pillings 1866
Ordovician

Pirgulia Cooper&Muir-Wood 1951
Lyttoniacea Waagen 1883

Lyttonia pedicula Gregorio 1930
Permian

Pirothyris Thomson 1927
Terebrateltacea King issn

Magaselta vercoi Blochmann 1910
Recent

Pirotothyris Sucic-Protic 1971
Loboidothyridacea Makridin 1964

Pirotothyris fortis Sucic-Protic 1971
Jurassic

Pisirhynchia Buckman 1917
Rhynchonettacea Gray 1848

Rhynchonetla pisoides Zittet 1869
Jurassic

Pizarroa Hoek 1912
Lingutacea menke 1828

Pizarroa quichuana Hoek 1912
Ordovician

Ptacothyris Westphat 1970
Terebratulacea Gray 1840

Terebratuta rollieri Caes 1893
Jurassic

Ptacotriptesia Amsden 1968
Triptesiacea Schuchert 1913

Triplesia praecipta Utrich&Cooper, 1936
Silurian

Ptaesiomys Hattiletarke 1892
Orthacea Woodward 1852

Orthis subnuadrata Hall 1847
Ordovician

Ptagiorhyncha McLearn 1918
Rhynchonetlacea Gray 1848

Phynchonetla glassii Davidson 1883
Silurian

Planalvus Carter 1971
Athyridacea McCoy 1844

Ptanalvus gibberosa Carter 1971
Mississippian

Ptanatrypa Copper 1967
Atrypacea Gil1 1871

Atrypa pe tasa Copper 1967
Devonian

Ptanatrypa Struve 1966
Atrypacea Gill 1871

Atrypa collega Struve 1966
Devonian

Planicardinia Savaqe 1968
Datmanellacea Schuchert 1913

Ptanicardinia carroti Savaqe 1968
Devonian

Ptanidorsa Schuchert&Cooper 1931
Orthacea Woodward 1852

Ptanidorsa bella Schuchert&Cooper 1931
Ordovician

Ptanirhynchia Sucic-Protic 1969
Rhynchonet lacea Gray 1848

Planirhynchia Lentilla Sucic-Protic 1969
Jurassic

Planispina Stehti 1954
Strophalosiacea Schuchert 1913

Planispina conida Stehli 1954
Permian

Ptanodouvillina Harper&Boucot 1978
Stropheodontacea Caster 1939

Planodouvillina cortezi Harper&Boucot 1978
Devonian

Planoharknessella Havticek 1950
Enteletacea Waagen 1884

Planoharknessella planidorsa Havticek 1950
Ordovician

Ptanoproductus Stainbrook 1947
Productacea Gray 1840

Productelta hillsboroensis Kindle 1909
Devonian

Ptanovatirostrum Sartenaer 1970
Rhynchonettacea Gray 1848

Liorhynchus planoovalis Nalivkin 1937
Devonian

Ptatidia Costa 1852
Terebratellacea King 1850

Orthis anomioides Scacchi&Philippi 1844
Tertiary-Recent

Ptatyconcha Waterhouse 1975
Productacea Gray 1840

Platyconcha qrandis Waterhouse 1975
Permian

Platyglossarlorhynchus Sartenaer 1970
Rhynchonetlacea Gray 1845

Pugna oroteus Tortey 1934
Devonian

Ptatymena Cooper 1956
Strophomenacea King 1846

Ptatymena plana Cooper 1956
Ordovician

Platymerella Foerste 1909
Pentameracea McCoy 1844

Platymerella manniensis Foerste 1909
Silurian

Ptatyorthis Schuchert&Cooper 1931
Fntetetacea Waagen 1884

Orthis planoconvexa Hall 1859
Sitprian-Devonian

Platyrachetta Fenton&Fenton 1924
Spiriferacea King 1246

Spirifera marbr idei Calvin 1883
Devonian

Ptatysetma Gordon 1966
Productacea Gray 1840

Platyselma èchinatum Gordon 1966
Mississiopian

Platysoirifer Grabau 1931
Spiriferacea King 1846

Schizophoria paronai Martelli 1902
Devonian

Ptatystrophia King 1850
Orthacea Woodward 1852

Terebratulites biforatus Schlotheim 1820
Ordovician-Silurian

Platyterorhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Lelorhynchus russelli McLaren 1962
Devonian

Ptatythyris middtemiss 1959
Terebratutacea Gray 1840

Ptatythyris comptonensis Middtemiss 1959
Cretaceous

Ptatytoechia Meuman 1964
Clitambonitacea Winchell&Schuchert 1893

Ptatytoechia boucoti Neuman 1964
Ordovician

Playfairia RPeed 1917
Strophomenacea King 1846

Strophomena dettoidea Conrad 1819
Ordovician

Ptebejochonetes Boucot&Harper 1968
Chonetacea Bronn 1862

Chonetes plebejus Schnur 1853
Devonian

Plectambonites Pander 1830
Plectambonitacea Jones 1928

Plectambonites ptanissima Pander 1830
Ordovician

Plectatrypa Schuchert&Cooper 1930
Atrypacea Gill 1871

Terebratula imbricata Sowerby 1839
Ordovician-Siturian

Plectelasma Cooper&Grant 1969
Dielasmatacea Schuchert 1913

Plectelasma kingi Cooper&Grant 1969
Permian

Plectetta lamansky 1905
Plectambonitacea Jones 1928

Ptectambonites uncinata Pander 1830
Ordovician

Ptectocamara Cooper 1956
Porambonitacea Davidson 1853

Plectocamara costata Cooper 1956
Ordovician

Ptectoconcha Cooper 1942
Terebratutacea Gray 1840

Rhynchonelta aequipticata Gabb 1864
Triassic

Plectodonta Koztowski 1929
Ptectambonitacea Jones 1928

Plectodonta mar iae Koztowski 1929
Siturian-nevonian

Plectodontella Havlicek 1953
Plectambonitacea Jones 1928

Plectodontella redunca Havticek 1953
Devonian

Plectoglossa Cooper 1956
Lingulacea Menke 1828

Plectoglossa oktahomensis Cooper 1956
Ordovician

Plectoldothyris Buckman 1917
Terebratulacea Gray 1840

Terebratuta polyptecta Buckman 1901
Jurassic

Plectorhynchella Cooper&Muir-Wood 1951
Rhynchonellacea Gray 1848

Athyris cottinensis Frech 1902
Devonian

Ptectorthis Hatt&Clarke 1892
Orthacea Woodward 1852

Orthis plicatella Hall 1847
Ordovician

Ptectospira Cooper 1942
Retziacea Waagen 1883

Terebratuta ferita Ruch 1834
Devonian

Plectospirifer Grabau 1931
Spiriferacea King 1846

Spirifer heimi Grabau 1931
Devonian

Plectothyrella Temple 1965
Athyridacea McCoy 1844

Plectothyrella Platystrophoides Temple 1965
Ordovician

Ptectothyris Ruckman 1917
Terebratutacea Gray 1840

Terebratuta fimbria Soweroy 1822
Jurassic

Plectotreta Utrich&Cooper 1936
Triplesiacea Schuchert 1913

Ptectotreta Uindstroemi Utrich&Cooper 1936
Silurian

Ptectotrophia Utrich&Cooper 1936
Porambonitacea Davidson 1853

Ptectotrophia bridgei Utrich&Cooper 1936
Cambrian

Pleiopleurina Schmidt 1964
Rhynchonettacea Gray 1848

Atrypa oleiopteura Conrad 1841
Devonian

Plekonelta Campbell 1953
Rhynchonellacea Gray 1848

Plekonella acuta Campoell 1953
Pennsylvanian-Permian

Ptesicarinatina Mizens 1977
Atrypacea Gill 1871

Ptectatrypa carputenta Breivel 1959
Devonian

Ptesiothyris Douville 1879
Zeitteriacea Allan 1940

Terebratula verneuiti Deslongthamps 1863
Jurassic

Ptethorhyncha Hall&Clarke 1893
Rhynchonettacea Gray 1848

Rhynchonelta speciosa Hall 1856
Devonian

Pteurelasma Cooper&Grant 1976
Dielasmatacea Schuchert 1913

Pleurelasma costatum Cooper&Grant 1976
Permian

Pteurochonetes Isaacson 1977
Chonetacea Bronn 1862

Chonetes tauriata Isaacson 1977
Devonian

Pleurocornu Havticek 1961
Rhynchonettacea Gray 1848

Rhynchonetta amissa Barrande 1879
Silurian

Pleurodium Wang 1955
Pentameracea McCoy 1844

Conchidium tenuipticatus Grabau 1925
Silurian

Pteurohorridonia nunbar 1955
Productacea Gray 1840

Pteurohorridonia scoresbyensis nunbar 1955
Permian

Pteuropugnoides Ferguson 1966
Rhynchonettacea Gray 1848

Terebratuta Pteurodon Phillios 1836
Carboniferous

Pleurorthis Cooper 1956
Orthacea Woodward 1852

Pleurorthis fascicosteltata Cooper 1956
Ordovician

Pleurothyrella goucot et al 1963
Stringocephatacea King 1850

Scaphiocoetia africana Reed 1906
Devonian

Plicanoplia Roucot&Harper 1968
Chonetacea Bronn 1862

Chonetes fornacuta Ounbar 1920
Devonian

Plicanoptites Havticek 1974
Chonetacea Bronn 1862

Plicanoptia peculiaris Havticek 1973
Devonian

Pticarostrum Purri 1953
Rhynchonettacea Gray 1848

Pticarostrum hauteriviense Burri 1953
Cretaceous

Pticathyris Khalfin 1946
Athyridacea McCoy 1844

Athyris sibirica Khalfin 1940
Devonian

Plicatifera Chao 1927
Productacea Gray 1843

Productus plicatilis Sowerby 1824
Mississippian

Pticatocyrtia Gauri 1965
Spiriferacea King 1846

Spirifer zitteli Schettwien 1892
Pennsytvanian

Plicatoderbya Thomas 1937
Navidsoniacea king 1850

Orthotetes magnus Pranson 1930
Permian

Pticatolinguta Liu 1979
Lingutacea Menke 1828

Plicatolincluta caetata Liu 1979
Cambhian

Pticatosyrinx Minato 1952
Spiriferacea King 1846

Plicatosyrinx singulare Minato 1952
Mississippian

Pticirhynchia Atlan 1947
Rhynchonettacea Gray 1848

Rhynchonetta pticigera Ihering 1897
Tertiary

Pticochonetes Paecketmann 1930
Chonetacea Bronn 1862

Chonetes buchianus Koninck 1843
Carboniferous

Pticocoetina Poucot&Johnson 1966
Pentameracea McCoy 1844

Pentamerus occidentatis Hall 1852
Silurian

Pticocyrtia Boucot 1963
Cyrtiacea Fredericks 1924

Cyrtia petasus Barrande 1848
Silurian

Pticocyrtina Havlicek 1956
Suessiacea Waagen 1883

Cyrtina sinuoticata Havticek 1956
Devonian

Pticodevonaria Boucot&Harper 1963
Chonetacea Pronn 1862

Orthis minuta Buch 1836
Devonian

Pticogypa Rzonsnitzkaja 1975
Pentameracea McCoy 1844

Pentamerus kayseri Peetz 1901
Devonian

Plicoptasia Poucot 1959
Cyrtiacea Fredericks 1924

Plicoplasia cooperi Boucot 1959
Devonian

Pticoproductus Ljaschenko 1969
Productacea Gray 1840

Productetta mosotovica Ljaschenko 1958
Devonian

Pticostricktandia Boucot&Ehlers 1963
Pentameracea McCoy 1844

Stricklandia multitirata Whitfield 1878
Silurian

Pticostropheodonta Sokotskaja 1960
Strophomenacea King 1846

Orthis murchisoni Verneuit&Archiac 1842
Devonian

Pticotorynifer Abramov&Solomina 1970
Reticutarlacea Waagen 1883

Pticotorynifer snjatkovi Abramov 1970
Pennsylvanian

Ptionoptycherhynchus Sartenaer 1979
Rhynchonettacea Gray 1848

Ptionoptycherhynchus exformosus Sartenaer 1979
Devoran

Pocockia Lazarev 1976
Entetetacea Waagen 1884

Atrypa gibbera Portlock 1843
Mississippian

Podotelta Koztowski 1929
Stringocephatacea King 1850

Podotella rensselaeroides Koztowski 1929
Devonian

Podtsheremia Katashnikov 1966
Spiriferacea King 1846

Podtsheremia prima Katashnikov 1966
Mississippian

Poikitosakos Watson 1917
Lyttoniacea Waagen 1883

Poikitosakos petatoides Watson 1917
Pennsytvanian-Permian

Potymorpharia Cooper&Grant 1975
Productacea Gray 1840

Polymoroharia potymorpha Cooper&Grant 1975
Permian

Potytoechia Hall&Clarke 1892
Ctitambonitacea Winchett&Schuchert 1893

Hemioronites apicatis Whitfietd 1886
Ordovician

Ponatospiretta Rittner 1892
Uncertain

Spirigera thecidium Bittner 1892
Trassic

Pomatotrema Utrich&Cooper 1932
Ctitambonitacea Winchett&Schuchert 1893

Pomatotrema muratis Ulrich&Cooper 1932
Ordovician

Pomeromena Mitchett 1977
Strophomenacea King 1846

Pomeromena transversa Mitchett 1977
Ordoviciak

Pompeckium Havticek 1970
Orthacea Woodward 1852

Orthis kuthani Pompeckj 1896
Cambrian

Pondospirifer Waterhouse 1978
Spiriferacea King 1846

Pondospirifer magnificus Waterhouse 1978
Permian

Pontletasma Waterhouse&Piyasin 1973
Cryptoneltacea Thomson 1926

Pontietasma oraeundatum waterhouse&Piyasin 1970
Permian

Pontisia Cooper&Grant 1969
Rhynchonettacea Gray 1848

Pontista stehlii Cooper&Grant 1969
Permian

Porambonites Pander 1830
Porambonitacea Davidson 1853

Porambonites intermedia Pander 1830
Ordovician-Siturian

Porambonitoides Xu 1978
Porambonitacea Davidson 1853

Hemipronites hupeihensis Wang 1955
Ordovician

Poramborthis Havticek 1949
Orthacea Woodward 1852

Poramborthis klouceki Havlicek 1949
Ordovician

Porostictia Cooper 1955
Rhynchonettacea Gray 1848

Paraphorhynchus perchaensis Stainbrook 1947
Devonian

Portneufia Hoover 1979
Dielasmatacea Schuchert 1913

Portneufia episutcata Hoover 1979
Triassic

Portranetta Wright 1964
Orthacea Woodward 1852

Portranetta angutocostellata Wright 1964
Ordovician

Postepithyris Makridin 1960
Terebratutacea Gray 1840

Terebratula cincta Cotteau 1857
Jurassic

Pradoia Comte 1938
Athyridacea McCoy 1844

Terebratuta torenoi Verneuit&Archiac 1845
Devonian

Praecubanothyris hagys 1974
Dietasmatacea Schuchert 1913

Praecubanothyris obtusus nagys 1974
Triassic

Praecyclothyris Makridin 1955
Rhynchonettacea Gray 1848

Rhynchonella moeschi Makridin 1952
Jurassic

Praegnantenia Havticek 1961
Rhynchoneltacea Gray 1848

Terebratula praegnans Barrande 1847
Devonian

Praehorridonia Ustritsky 1962
Productacea Gray 1840

Praehorridonia dorsopticata Ustritsky 1962
Permian

Praelacazetta Smirnova 1969
Thecideacea Gray 1840

Thecidium vatang ense Loriol 1868
Cretaceous

Praetacunosetla Wisniewska 1978
Rhynchonettacea Gray 1848

Praelacunosetta substephani Wisniewska-Zetich. 1978
Jurassic

Praetongithyris Middlemiss 1959
Terebratulacea Gray 1840

Praetongithyris praetongiforma Middlemiss 1959
Cretaceous

Praeneothyris Katz 1962
Terebrateltacea King 1850

Praeneothyris darvasensis Katz 1962
Cretaceous

Praewaagenoconcha Sokalskaja 1948
Productacea Gray 1840

Productus orelianus Moetter 1871
Devonian

Pranttina Havticek 1949
Orthacea Woodward 1952

Orthis desiderata Barrande 1848
Ordovician

Primorewia Licharew&Kottjar 1978
Spiriferacea King 1846

Primorewia reshetnikov Licharew&Kottjar 1978
Permian

Prionorhynchia nuckman 1917
Rhynchonellacea Gray 1848

Terebratuta serrata Soweroy 1825
Jurassic

Prionothyris Cloud 1942
Stringocephatacea King 1850

Prionothyrgs perovalis Cloud 1942
Devonian

Prisca Gregorio 1930
Lyttoniacea Waaaen 1983

Lyttonia fasciculata Gregorio 1930
Permian

Proatribonium Gratsianova 1967
Stenoscismatacea Oehtert 1887

Proatribonium altaicom Gratsianova 1967
Devonian

Probolarina Cooper 1959
Rhynchonellacea Gray 1848

Rhynchonella hotmesii Dall 1903
Tertlary

Probntionla Cooper 1957
Productacea Gray 1840

Probotionia posteroreticulata Cooper 1957
Permian

Proboscidetta nehlert 1887
Productacea Gray 1840

Productus oroboscideus Verneuil 1840
Mississippian

Proboscidina lsaacson 1977
Stringocephatacea King 1850

Centronella arcei Utrich 1892
Devonian

Procerutina Andronov 1961
Pentameracea McCoy 1844

Pentamerus acutotobatus Barrande 1879
Devonian

Prochlidonophora Thomson&Owen 1979
Terebratutacea Gray 1840

Prochlidonophora muirwoodae Thomson&Owen 1979
Cretaceous

Prochortstitella Legrand-Blain 1969
Spiriferacea King 1846

Prochoristitella afahanensis Legrand-Blain 1969
Carboniferous

Proconchidium Sapelnikov 1969
Pentameracea McCoy 1944

Conchidium nunsteri St.Joseph 1938
Ordovician

Prodavidsonia Havticek 1956
navidsoniacea King 1850

Prodavidsonia datejensis Havlicek 1956
Devonian

Productetla Hall 1867
Productacea Gray 1840

Productus subacuteatus Murchison 1840
Devonian-Mississippian

Prodoctellana Stainbrook 1950
Productacea Gray 1840

Prodoctellana bifaria Stainbrook 1950
Mississippian

Productetlina Reed 1943
Productacea Gray 1840

Productus fremingtonensis Reed 1943
Devonian

Productina Sutton 1938
Productacea Gray 1840

Productus sampsoni Welter 1909
Mississippian

Productorthis Koztowski 1927
Orthacea Woodward 1852

Productos obtusus Pander 1830
Ordovician

Productus Sowerby 1814
Productacea Gray 1840

Anomites productus Martin 1809
Mississippian

Proponambonites Opik 1934
Gonambonitacea Schuchert&Cooper 1931

Procionambonites estonus Opik 1934
Ordovician

Prokopia Havticek 1953
Entetetacea Waagen 1884

Prokopia bouskai Havticek 1953
Devonian

Promarginifera Shiells 1966
Productacea Gray 1840

Promarginifera trearnensis Shiells 1966
Mississippian

Pronativkinia Rukavischnikova 1977
Atrypacea Gill 1871

Nalivkinia numerosa Rukavischnikova 1977
Silurian

Propatetta Grubbs 1939
Craniacea Menke 1828

Propatetla magnacostata Grubos 1939
Silurian

Propygooe Pittner 1890
Dietasmatacea Schuchert 1913

Terebratula bagar Pittner 1890
Triassic

Prorensselaeria Raymond 1923
Stringocephalacea King 1850

Prorensselaeria nytanderi Ravmond 1923
Devonian

Proreticutaria Havticek 1957
Reticularlacea Waageh 1883

Spiri fer careos Barrande 1879
Situnas

Prorichthofenia King 1931
Richthofeniacea Waagen 1885

Crania Permianiana Shumard 1859
Permian

Proschizophoria Maillieux 1912
Entetetacea Waagen 1854

Orthis personata Zeiler 1857
Devonian

Prospira Maxwell 1954
Spiriferacea King 1846

Prosoira typa Maxwell 1954
Mississippian

Prosserella Grahau 1910
cyrtiacea Frelericks 1924

Prosseretla modestoides Grabau 1910
Devonian

Prostricklandia Rukavischnikova et al. 1973
Pentameracea McCoy 1844

Prostricktandia prisca Rukavischnikova et al 1973
Ordovician

Prosyrinaothyris Fredericks 1916
Spiriferacea King 1846

Prosyringothyris northi Fredericks 1916
Mississippian

Protambonites Havlicek 1972
Clitambonitacea Winchett&Schuchert 1893

Tritoechia kolihai Havticek 1949
Cambrian

Protanidanthus Liao 1979
Productacea Gray 1840

Protanidanthus eleaans Liao 1979
Carboniferous

Protathyris Koztowski 1929
Athyrldacea McCoy 1844

Protathyris praecursor Koztowski 1929
Siturian-nevonian

Protatrypa Boucot,Johnson&Staton 1964
Atrypacea Gill 1871

Protatrypa matmoeyensis Poucot et al 1964
Siturnan

Proteguliferina Licharew 1960
Strophalosiacea Schuchert 1913

Tegutiferina rossica Ivanov 1925
Pennsytvanian

Proteorthls Havlicek 1974
Orthacea Woodward 1852

Orthls tardissima Barrande 1879
Silurian

Protobotus Liu 1979
Obotettacea Watcott&Schuchert 1938

Protobplus otivaeformis Liu 1979
Cambrian

Protochonetes Muir-Wood 1962
chonetacea Pronn 1862

Protochonetes tudtoviensis Muir-Wood 1962
Silurian

Protocortezorthis Johnson&Tatent 1967
Datmanellacea Schuchert 1913

Orthis fornicatimcurvata Fuchs 1919
Silurian

Protocymostrophia Harper&Boucot 1978
Stropheodontacea Caster 1939

Strophomena ivanensis Barrande 1879
Siturian-nevonian

Protodouvillina Harper&Boucot 1978
Stropheodontacea Caster 1939

Strophomena ineguistriata Conrad 1842
Devonian

Protogusarella Perry&Chatterton 1979
Zeilleriacea Allan 1940

Protogusarella smithi Perry&Chatterton 1979
Triassic

Protoleptostrophia Caster 1939
Strophomenacea King 1846

Strophomena blainvillii Billings 1874
Devonian

Protomegastrophia Caster 1939
Strophomenacea King 1846

Leptaena profunda Hall 1852
Silurian-Devonian

Protomendacella Havlirek 1970
Enteletacea Waagen 1884

Protomendacella eos Havlicek 1970
Ordovician

Protoniella Pell 1929
Productacea Gray 1840

Protoniella beedii Bell 1929
Mississippian

Protophragmapora Alekseeva 1967
Enteletacea Waagen 1884

Protophragmapora chobotchalensis Alekseeva 1967
Devonian

Protorhyncha Hall&Clarke 1893
Rhynchonellacea Gray 1848

Atrypa dubia Hall 1847
Ordovician

Protorthis Hall&Clarke 1892
Orthacea Woodward 1852

Orthis billingsi Hartt 1868
Cambrian

Protoshateria Harper&Boucot 1978
Stropheodontacea Caster 1939

Strophomena ornatella Davidson 1871
Silurian-Devonian

Protosiphon Matthew 1897
Obolellacea Walcott&Schuchert 1908

Protosiphon kempanum Matthew 1897
Cambrian

Protoskenidioides Wiltiams 1974
Orthacea Woodward 1852

Protoskenidioides revelata Williams 1974
Ordovician

Prototreta Bell 1938
Acrotretacea Schuchert 1823

Prototreta trapeza Bell 1938
Cambrian

Protozeuoa Twenhofel 1913
Dayiacea Waagen 1883

Waldheimia mawei Davidson 1881
Silurian

Protozyga Hall&Clarke 1893
Atrypacea Gill 1871

Atryoa exigua Hall 1847
Ordovician

Psamathopalass Liu 1979
Uncertain

Psamathopalass amphidoz Liu 1979
Cambrian

Psebajithyris Tchorszhewsky 1974
Terebratulacea Gray 1840

Psebajithyris rostovtzevi Tchorszhewsky 1974
Jurassic

Pseudoanisopleurella Xu 1978
Plectambonitacea Jones 1928

Pseudoanisopleurella aletheta Xu 1978
Ordovician

Pseudoatryoa Cooper 1973
Atrypacea Gill 1871

Atrypa devoniana Webster 1921
Devonian

Pseudobolus Cooper 1956
Lingulacea Menke 1828

Palaeoglossa gibbosa Willard 1928
Ordovician

Pseudobornhardtina Yang 1977
Stringocephalacea King 1850

Pseudobornhardtina xiangzhouensis Yang 1977
Devonian

Pseudocamarophoria Wedekind 1926
Rhynchonellacea Gray 1848

Terebratula microrhyncha Roemer 1844
Devonian

Pseudocamarotoechia Kutkov 1974
Rhynchonetlacea Gray 1848

Pseudocamarotoechia nuculaeformis Kulkov 1974
Silurian

Pseudochonetes Su 1976
Chonetacea Bronn 1862

Pseudochonetes flexoplicatus Su 1976
Devonian

Pseudoconchidium Nikiforova et al 1971
Pentameracea McCoy 1844

Pseudoconchidium kozhimicum Nikiforova 1971
Siturlan

Pseudocrania McCoy 1851
Craniacea Menke 1828

Orbicula antinuissima Eichuald 1840
Ordovician

Pseudocyrtina Dagys 1962
Spiriferinacea Davidson 1884

Pseudocyrtina norica Dagys 1962
Triassic

Pseudoderbyia Lichareu 1934
Davidsaniacea King 1850

Pseudoderbyia netschajeui Lichareu 1934
Permian

Pseudodicettomus Bell 1962
Linqulacea Menke 1828

nicellomui mosaica Bell 1941
Cambrian

Pseudodicoelosia Boucot&Amsden 1958
Entetetacea Waanen 1884

Rhipidomella oklahomensis Amsden 1951
Silurian

Pseudodietasma Brill 1940
Dielasmatacea Schuchert 1913

Pseudodielasma perolexa Brill 1940
Permian

Pseudodouvillina Stainbrook 1945
Strophomenacea King 1946

Pseudodouvillina euglyphea Stainbrook 1945
Devonian

Pseudogibbirhynchia Ager 1962
Rhynchonellacea Gray 1848

Rhynchranella noorei Davidson 1852
Jurassic

Pseudoglossinotnechia Tcherkesova 1967
Rhynchonellacea Gray 1848

Pseudoglossinotoechia atalanta Tcherkesova 1967
Devonian

Pseudoglossothyris Puckman 1901
Terebratulacea Gray 1840

Terebratula curvifrons Davidson 1978
Jurassic

Pseudogrueneualdtia Rzonsnitzkaja 1960
Atrypacea Gill 1871

Pseudogrueneualdtia tschernyscheui Rzonsnitzkaja 1960
Devonian

Pseudohalorella nagys 1965
Rhynchonellacea Gray 1848

Pseudohalorella sibirica nagys 1965
Triassic

Pseudoharttina Lichareu 1934
Dielasmatacea Schuchert 1913

Pseudoharttina ovalis Lichareu 1934
Permian

Pseudohomeospira Nikiforova 1970
Athyrisinacea Grabau 1931

Pseudohomeospira potar, Nikiforova 1970
Silurian

Pseudokingena Bose&Schlosser 1900
Dielasmatacea Schuchert 1913

Terebratutina deslongchamosi Davidson 1850
Jurassic

Pseudolabaia Ching&Ye 1979
Dielasmatacea Schuchert 1913

Dielasma curvatum Yang 1962
Permian

Pseudolaballa Dagys 1974
Spiriferinacea Davidson 1884

Laballa bittneri Dagys 1965
Triassic

Pseudoteiorhynchus Rozman 1962
Rhynchonellacea Gray 1848

Leiorhynchus uraticus Nalivkin 1947
Devonian

Pseudolepismatina Ching&Sun 1976
Suessiacea Waagen 1883

Pseudotepismatina nyalamensis Ching&Sun 1976
Triassic

Pseudoleptaena Miloradovich 1947
Strophomenacea King 1846

Leotaena distorta Souerby 1846
Mlssissipoian

Pseudoteptodus Stehli 1956
Lyttoniacea Waagen 1883

Pseudoteptodus getauayensis Stehli 1956
bernian

Pseudolingula Mickwitz 1909
Lingulacea Menke 1828

Crania quadrata Eichuald 1829
Ordovician

Pseudomarginifera Stepanov 1934
Productacea Gray 1840

Productus ussuricus Fredericks 1924
Permian

Pseudometoptoma Huene 1899
Craniacea Menke 1828

Metootoma situricum Eichwald 1842
Ordovician-Silurian

Pseudoorthotetes Sokotskaja 1963
Davidsoniacea King 1850

Pseudoorthotetes borodencovensis Sokolskaja 1963
Carboniferous

Pseudoparazyqa Johnson 1970
Retziacea Waagen 1833

Trematospira cooperi Merrlam 1940
Devonian

Pseudopentagonia Besnossova 1963
Athyridacea McCoy 1844

Pseudopentagonia injensis Besnossova 1963
Carboniferous

Pseudophotidops Pekker 1921
Lingulacea Menke 1828

Pseudophotidops scuteltata Pekker 1921
Orlovician

Pseudoporambonites Zenq 1977
Porambonitacea Davidson 1853

Pseudoporambonites yichangensis Zeng 1977
Ordovician

Pseudopugnax Licharew 1956
Rhynchorettacea Gray 1848

Pseudopugnax planissimus Licharew 1956
Permian

Pseudopygoides Xu 1978
Dietasmatacea Schuchert 1913

Pseulopygoides jueyongensis Xu 1978
Triassic

Pseudorugiteta Dagys 1959
Terebratettacea King 1850

Watdheimia oulchella Bittner 1890
Trassic

Pseudosieberetta Godefroid 1972
Pentameracea McCoy 1844

Pseudosieberetta corruclata Godefroid 1972
Devonian

Pseudospiriferina Yang&Xu 1966
Spiriferinacea Davidson 1884

Pseudospiriferina variabilis Yang&Xu 1966
Triassic

Pseudostrophalosia Clarke 1970
Strophatoslacea Schuchert 1913

Strophatosia brittoni Maxwell 1954
Permian

Pseudostrophomena Roomusoks 1963
Orthotetacea Waagen 1884

Pseudostroohomena rectinis Roomusoks 1963
Silurian

Pseudosyringothyris Fredericks 1916
Spiriferacea King 1846

Pseudosyringothyris karpinskii Fredericks 1916
Permian

Pseudosyrinx Weller 1914
Spirtferacea King 1846

Pseudosyrinx missouriensis Weller 1914
Mississippian

Pseudotubithyris Atmeras 1971
Terebratutacea Gray 1840

Terebratuta globata Sowerby 1825
Jurassic

Pseudounclnulus Pzonsnitzkaja 1968
Rhynchonettacea Gray 1848

Pseudouncinutus mamontovensis Rzonsnitzkaja 1968
Devonian

Pseudowattonithyris Almeras 1971
Terebratulacea Gray 1840

Terebratuta circumdata Destongchamps 1885
Jurassic

Pseudowetleretta Licharew 1956
Rhynchonettacea Gray 1848

Pseudowelterella nikchitchi Licharew 1956
Permian

Pseudoyunnanetla Chen 1978
Rhynchonettacea Gray 1848

Pseudoyunnanetta sichuanensis Chen 1978
Devonian

Psitocamara Cooper 1956
Stenoscismatacea Oehtert 1887

Psitocamara renfroarum Cooper 1956
Pennsytvanlan-Permian

Psitoria Cooper 1976
Protorthacea Cooper 1975

Psiloria pauoerata Cooper 1976
Cambrian

Psitothyris Cooper 1955
Terebratettacea King 1850

Psilothyrls occidentatls Cooper 1955
Cretaceous

Psioidea Hector 1879
Suessiacea Waagen 1888

Spiriferina netsonensis Trechmann 1918
Triassic

Psioidiella Campbell 1968
Spiriferinacea Davidson 1854

Spiriferina otanitessis Trechmann 1918
Trassic

Pteroptecta Waterhouse 1978
Detthyridacea Phittips 1841

Pteroptecta taminatus Waterhouse 1978
Permian

Pterospirifer Dunbar 1955
Spiriferacea King 1846

Spirifer atatus Schtotheim 1813
Permian

Ptitorhynchia Crickmay 1933
Rhynchonettacea Gray 1848

Ptitorhynchia plumasensis Crickmay 1933
Jurassic

Ptitotorhynchus Cooper&Grant 1976
Rhynchonettacea Gray 1848

Ptitotorhynchus delicatum Cooper&Grant 1976
Permian

Ptychocityptus Wittard 1928
Ptectambonitacea Jones 1928

0tychoglyptus virginiensis Wittard 1928
Ordovician

Ptychomatetoechia Sartenaer 1961
Rhynchonettacea Gray 1848

Rhynchonetta omalius, Gosselet 1877
Devonian

Ptychopettis Berner 1903
Paterinacea Schuchert 1893

Ptychopeltis incota Perner 1903
Ordovician

Ptychopteuretta Schuchert&Cooper 1031
Orthacea Woodward 1852

Orthis beuchardi Davidson 1847
Ordovician-Sitorian

Ptyctorhynchia Sluckman 1917
Rhynchonettacea Gray 1848

Rhynchonetta pertaptycta Buckman 1910
Jurassic

Ptyctothyris nuckman 1917
Terebratutacea Gray 1840

Terehratuta stephani navidson 1877
Jurassic

Ptygmactrum Cooper&Grant 1976
Rhynchoneltacea Gray 1848

Ptyomactrum estensum Cooper&Grant 1976
Permian

Puanatrypa Xian 1978
Atrypacea Gill 1871

Puanatrypa guanziyaoensis Xian 1978
Devonian

Puanospirifer Jiang 1978
Reticutariacea Waagen 1883

Puanospirifer guanziyaoersis Jiang 1978
Devonian

Pugitis Sarytcheva 1949
Productacea Gray 1840

Producta ougitis Phittios 1836
Mississippian-Permian

Pugnas Hall&Clarke 189s
Rhynchonellacea Gray 1848

Terebratula acuminata Sowerby 1822
nevonian-Carboniferons

Pugnoides Welter 1910
Rhynchonellacea Gray 1848

Rhynchonetla ottumwa White 1862
Mississippian

Putchratia Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus symmetricus McChesney 1867
Pennsytvanian

Putchrithyris Sahni 1925
Terebratutacea Gray 1843

Putchrithyris gracitis Satini 1925
Cretaceous

Putsia Ivanov 1925
Davidsoniacea King 1850

Putsia mosouensis Ivanov 1925
Carboniferous

Pumitus Atkins 1958
Terebratellacea King 1850

Pumitus antiouatus Atkins 1958
Recent

Punctatrypa Havticek 1953
Atrypacea Gill 1871

Punctatrypa nativkini Havticek 1953
Devonian

Punctocyrtetta Plodowski 1968
Spiriferacea King 1846

Punctocyrtetta spinosa Plodowski 1965
Carboniferons-Permian

Punctotira Utrich&Cooper 1936
Porambonitacea Davidson 1853

Punctolira punctotira Utrich&Cooper 1936
Ordovician

Punctopatella Grubbs 1939
Craniacea Menke 1828

Punctopatella corallifera Grubbs 1939
Silurian

Punctospirella Daqys 1974
Spirkferinacea Davidson 1884

Terebratula fragilis Schlotheim 1814
Carboniferous-Triassic

Punctospirifer North 1920
Spiriferinacea Davidson 1884

Punctospirifer scabricosta North 1920
Mississippian

Punctothyris Hyde 1953
Spiriferinacea Davidson 1884

Punctothyris argus Hyde 1953
Mississippian

Punctspinatrypa Pronsnitzkaja 1975
Atrypacea Gill 1871

Atrypa rejensis Khodalevich 1951
Devonian

Purdonella Reed 1944
Spiriferacea King 1846

Spirifer nikitini Tschernyschew 1902
Permian

Pustula Thomas 1914
Productacea Gray 1843

Producta pustulosa Phillips 1836
Mississionian

Pustulatia Cooper 1956
Cyrtiacea Fredericks 1924

Vitulina pustulosa Hall 1860
Devohian

Pustuloplica Waterhouse 1968
Spiriferacea King 1846

Pustulootica baccata Waterhouse 1968
Permian

PYgites Buckman 1906
Terebratulacea Gray 1840

Terebratula diphyoides Orbigny 1847
Cretaceous

Pygmaella Baranov 1977
Rhynchonellacea Gray 1848

Pygmaella pyomaea Baranov 1977
Devonian

Pyqmochonetes Jing&Hu 1978
Chonetacea Bromo 1862

Pyomochonetes jiuxianensis Jing&Hu 1978
permian

Pygope Link 1830
Terebratularea Gray 1840

Terebratula antinomia Catullo 1827
Jurassic-Cretaceous

Pyraeneica Sucic-Protic 1971
Loboidothyridacea Makridin 1964

Pyraeneica numerosa Sucic-Protic 1971
Jurassic

Pyramidalia Nalivkin 1947
Suessiacea waagen 1853

Spirifer simplex Phillips 1841
Devonian

Pyramina Ljaschenko 1969
Cyrtiacea Fredericks 1924

Pyramina oskolensis Ljaschenko 1969
Devonian

Oiansispirifer Tang 1977
Spiriferacea King 1846

oiansispirifer speciosus Yang 1977
Devonian

Oilianoconcha Ching,Sun&Ye 1979
Rhynchonellacea Gray 1848

Oilianoconcha corcula Ching,Sun&Ye 1979
Triassic

Oilianotryma Xu 1979
Rhynchonellacea Gray 1848

Oilianotryma mirabile Xu 1979
Ordovician

Oingyenia Yang&Xu 1966
Spiriferinacea Davidson 1884

Oingyenia spinosa Yang&Xu 1966
Triassic

Ouadratia Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus hirsutiforme Walcott 1884
Mississippian

Ouadratirhynchia Buckman 1917
Rhynchonellacea Gray 1848

Ouadratirhynchia nuadrata Puckman 1917
Jurassic

Ouadrifarius Fuchs 1923
Spiriferacea King 1946

Spirifer loculatus Fuchs 1923
Devonian

Ouadrikentron Boucot&Gauri 1966
Chonetacea Pronn 1862

Chonetes hudsonica Dunbar 1920
Devonian

Quadrisonia Powett&Henderson 1978
Ouadrisonia minor Rowell&Henderson 1978

Acrotretacea Schuchert 1893
Cambrian

Quadrithyrina Havlicek 1959
Reticulariacea Waagen 1883

Quadrithyrina ivanovae Havticek 1959
Devoran

Quadrithyris Havticek 1957
Reticutariacea Waagen 1883

Spirifer robustus Barrande 1948
Devonian

Quadrochonetes Stehli 1954
Chonetacea Dronn 1862

Chonetes quadratus Girty 1929
Pennsylvanian-permian

Ouangyuania Sheng 1975
Atrypacea Gill 1871

Ouangyuania ovatia Sheng 1975
Silurian

Quasiavonia Brunton 1966
Productacea Gray 1840

Prpductus aculeatus Sowerby 1814
Mississippian

Quasimartinia Havticek 1959
Cyrtiacea Fredericks 1924

Quastmartinia rectimarginata Havlicek 1959
Devonian

Quasistrophonella Harper&Boucot 1978
Stropheodontacea Caster 1939

Leptaena bohemica Barrande 1848
Devoran

Ouasithambonia Bednarczyk&Biernat 1978
Linqulacea Menke 1823

Quasithambonia rarispinosa Bednarczyk&Biernat 1978
Ordovician

Quebecia Walcott 1905
Kutorginacea Schuchert 1893

Obotetla circe Piltings 1871
Cambrian

Ouinquenelta Waterhouse 1975
Chonetacea Bronn 1862

Ouinnuenetta gtabra Waterhouse 1975
Permian

Quizhouspirifer Xian 1979
Spiriferacea King 1846

Spiriferina triplicata Mansuy 1913
Mississippian

Radiatrypa Copper 1978
Atrypacea Gill 1871

Atrypa gregeri Powley 1900
Devonian

Radiomena Havticek 1962
Strophomenacea King 1846

Orthis irregutaris Roemer 1844
Devonian

Rafinesquina Hatt&Clarke 1892
Strophomenacea King 1846

Leptaena atterrata Conrad 1838
Ordovician

Rattacosta Cooper&Grant 1976
Reticutariacea waagen 1883

Pallacosta imporcata Cooper&Grant 1976
Permian

Ramavectus Stehti 1954
Autosteciacea Muir-Wood&Cooper 1960

Ramavectus diabtoensis Stehti 1954
Permian

Ranorthis Opik 1939
Orthacea Woodward 1852

Ranorthis norveqica Opik 1939
Ordovician

Rastettigera Hector 1879
Spiriferinacea Davidson 1884

Rastelligera etongata Hector 1913
Triassic

Ratburia Yanagida 1970
Chonetacea gronn 1862

Ratburia komatarjuni Yanaglda 1970
Permian

Rauffia Schutz 1914
Stringocephatacea King 1850

Rauffia pseudocaiqua Schutz 1914
Derrochan

Raunites Opik 1939
Gonambonitacea Schuchert&Cooper 1931

Orthisina janischewskyi Lessnikov 1924
Ordovician

Ravozetina Havlicek 1974
Entetetacea Waagen 1884

Orthis honorata Barrande 1879
Ordovician

Rawdonia Peor 1979
Athyridacea McCoy 1844

Rawdonia nasharae Peou 1979
Carbnniferous

Rectirhynchia Buckman 1917
Rhynchonellacea Gray 1848

Rhynchonelta lopensis Moore 1855
Jurassic

Rectithyris Sahni 1929
Terebratulacea Gray 1840

Terebratula depressa Valenciennes 1819
Cretaceous

Rectotrophia Rates 1968
Porambonitacea Davidson 1853

Rectotrophia globularis Bates 1968
Ordovician

Redtichella Watcott 1908
Acrotretacea Schuchert 1893

Acrothete granulata Linnarsson 1876
Cambrian

Reedoconcha Kotljar 1964
Productacea Gray 1840

Productus Permianixtus Reed 1932
Permian

Reeftonelta noucot 1959
Cryptonellacea Thomson 1926

Meganteris neozelanica Altas 1935
Devonian

Reeftonia Altari 1947
Enteletacea Waagen 1884

Reeftonia marwicki Atlas 1947
Devonian

Reflexia Rotai 1931
Uncertain

Reflexia reftexa Rotai 1931
Carboniferous

Regelia Crickmay 1952
Spiriferacea King 1846

Cyrtosplrifer glaucus Crickmay 1952
Devoian

Reinversella Bates 1968
Plectambonitacea Jones 1928

Reinversella monensis Bates 1968
Ordovician

Remnevitoechia Gratsianova 1970
Phynchonellacea Gray 1848

Remnevitoechia pseudogurjevskensis Gratsianova 1970
Devoian

Renaudia Racheboeuf 1976
Chonetacea Bronn 1862

Eodevonaria mainensis Racheboeuf 1976
Devonlan

Rensselaeria Hall 1859
Stringocephatacea King 1850

Terebratula ovoides Eaton 1832
Devonian

Rensselaerina cribar 1917
Stringocephalacea King 1850

Rensselaerina mediopticata Dunbar 1917
Devonian

Rensselandia Hall 1867
Stringocephalacea King 1850

Rensselaeria johanni Hall 1867
Devonian

Resserella gancroft 1928
Enteletacea Waagen 1884

Orthis canalis Sowerby 1839
Silurian

Retaria Muir-Wood&Cooper 1960
Productacea Gray 1843

Retaria umbonata Muir-Wood&Cooper 1960
Pennsylvanian-Permian

Retichonetes Muir-Wood 1962
Chonetacea Bronn 1862

chonetes aria tus 0ouchard-Chantereaux 1845
Devoran-Mississippian

Reticutaria McCoy 1844
Reticulariacea Waagen 1883

Terebratula imbricata Sowerby 1822
Mississippian

Reticutariina nredericks 1916
Spiriferinarea Davidson 1884

Spirifer spinosus Norwood&Pratten 1855
Mississippian&Permian

Reticulariopsis Fredericks 1916
Reticutariacea Waagen 1883

Spiri Ser dereimsi Oehtert 1901
Devonian

Reticolata Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus huecoensis King 1931
Pennsylvanian-Permian

Reticulatochonetes Publichenko 1956
Chonetacea Bronn 1862

Reticulatochonetes lautus nublichenko 1956
Mississippian

Reticulatrypa Savage 1970
Atrypacea Gill 1871

Reticulatrypa fairhillensis Savage 1970
Siturian-Devonian

Retimarginifera Waterhouse 1970
Productacea Gray 1840

Retimaroinifera perforata waterhouse 1970
Permian

Retrorsirostra Schuchert&Cooper 1931
Orthacea Woodward 1852

Orthis carleyi Hall 1847
Ordovician

Retzia King 1850
Retziacea Waanen 1883

Terebratula adrieni Verneuil 1845
Devonian

Retziella Nikiforova 1937
Retziacea Waagen 1883

Retzia weberi Nikiforova 1937
Silurian

Retzispirifer Kulkov 1960
Spiriferacea King 1846

Retzispirifer uriensis Kulkov 1960
Devonian

Reuschella Rancroft 1928
Enteletacea Waagen 1884

Reuschella semiglobata gancroft 1928
Ordovician

Reveroides Sapelnikov 1976
Rentameracea McCoy 1844

Pentameroides jolvensis Sapelnikov 1961
Silurian

Rhactomena Mitchell 1977
Strophomenacea King 1846

Rhactomena splendens mitchell 1977
Ordovician

Rhactorhynchia guckman 1917
Rhynchonellacea Gray 1848

Rhactorhynchia rhacta Puckman 1917
Jurassic

Rhactorthis Williams 1963
Orthacea Woodward 1852

Phactorthis crassa Williams 1963
Ordovician

Rhaetina Waagen 1882
Dielasmatacea Schuchert 1913

Terebratula gregaria Suess 1854
Triassic

Rhaetinopsis Yang&Xu 1966
Dielasmatacea Schuchert 1913

Rhaetinopsis ovata Yanglxu 1966
Triassic

Rhamnaria Muir-Wood&Cooper 1960
Aulosteoacea Muir-Wood&Cooper 1960

Rhamnarla kingorum Muir-Wood&Cooper 1960
Permian

Rhapidothyris Tuluweit 1965
Terebratulacea Gray 1840

Rhapidothyris arciferens Tuluweit 1965
Jurassic

Rhenorensselaeria Kegel 1913
Stringocephalacea King 1850

Terebratula strigiceps Roemer 1844
Devonian

Rhenospirifer Mittmeyer 1972
Spiriferacea King 1846

Spirifer dunensis Kayser 1889
Devonlan

Rhenostrophia Roucot 1960
Strophomenacea King 1846

Orthis subarachnoidea Archiac&Verneui1 1842
Devoniani

Rhenothyris Struve 1970
Reticulariacea Waagen 1883

Rhenothyris rhenana Struve 1970
Devonian

Rhipidium Schuchert&Cooper 1931
Rentameracea McCoy 1844

Pentamerus knappi Hall&Whitfield 1872
Silurian

Rhipidomella Oehlert 1890
Rhipidometlacea Schuchert 1913

Terebratula michelini Leveille 1835
Silurian-Permlan

Rhipidomelloides Boucot&Amsden 1958
Enteletacea Waagen 1884

Rhipidomella henryhousensis Amsden 1951
Devonian

Rhipidomena Cooper 1956
Strophomenacea King 1846

Strophomena tennesseensis Willard 1928
Ordovician

Rhipidothyris Cooper&Williams 1935
Stringocephalacea King 1850

Rhipidothyris plicata Cooper&Willlams 1935
Devonian

Rhizothyris Thomson 1915
Terebratellacea King 1850

Rouchardia rhizoida Hutton 1905
Tertiary

Rhombothyris Middlemiss 1959
Terebratulacea Gray 1840

Terebratula extensa Meyer 1864
Cretaceous

Rhynchatrypa Siehl 1962
Atrypacea Gill 1871

Terebratula thetis Rarrande 1847
Devonian

Rhynchocamara Schuchert&Cooper 1931
Porambonitacea Davidson 1853

Rhynchocamara plicata Schuchert&Cooper 1931
Ordovician

Rhynchoferella Spriestersbach 1942
Uncertain

Rhynchoferella montana Spriestersbach 1942
Devonian

Rhynchonella Fischer 1809
Rhynchonellacea Gray 1848

Rhynchonella loxiae Fischer 1809
Jurassic

Rhynchonellina Gemmellaro 1871
Rhynchonellacea Gray 1848

Rhynchonellina suessi Gemmellaro 1871
Triassic-Jurassic

Rhynchonelloidea Buckman 1917
Rhynchonellacea Gray 1848

Rhynchonella ruthenensis Reynes 1868
Jurassic

Rhynchonelloidella Muir-Wond 1936
Rhynchonellacea Gray 1848

Rhynchonella varians Davidson 1878
Jurassic

Rhynchonellopsis Vincent 1893
Terebratulacea Gray 1849

Terebratulina nysti Bosquet 1862
Tertlary

Rhynchopora King 1865
Rhynchoporacea Muir-Wood 1955

Terebratula neinitziana Verneuil 1845
Mississipplan-Permian

Rhynchora Dalman 1828
Terebratellacea King 1850

Terebratula costata Nilsson 1827
Cretaceous

Rhynchorina Oehlert 1887
Terebratellacea King 1850

Anomites spathulatus wahlenberg 1821
Cretaceous

Rhynchorthis Bates 1968
Fnteletacea Waagen 1884

Rhynchorthis rotundus Bates 1968
Ordovician

Rhynchospirifer Paulus 1957
Cyrtiacea Fredericks 1924

Rhynchospirifer halleri Paulus 1957
Devonian

Rhynchospirina Schuchert&LeVene 1929
Retziacea Waagen 1883

Waldheimla formosa Hall 1957
Silurian-Devonian

Rhynchotetra Welter 1910
Rhynchonellacea Gray 1848

Rhynchonella caput White 1862
Mississipnian

Rhynchotrema Hall 1860
Rhynchonellacea Gray 1848

Atrypa increbescens Hall 1847
Ordovician

Rhynchotreta Hall 1879
Rhynchonellacea Gray 1848

Terebratula cuneata Dalman 1828
Silurian

Rhynchotretina Khalfin 1948
Rhynchonellacea Gray 1848

Rhynchotretina aeouivalvis Khalfin 1948
Devonian

Rhynobolus Hall 1871
Trimerellacea Davidson&Kig 1872

Obolus galtensis Billings 1862
Silurian

Rhyselasma Yadrenkina 1972
Porambonitacea Davidson 1853

Rhyselasma akitiense Yadrenkina 1972
Ordovician

Rhysostrophia Ulrich&Cooper 1936
Poramboritacea Davidson 1853

Rhysostrophia nevadensis Utrich&Cooper 1936
Ordovician

Rhysotreta Cooper 1956
Acrotretacea Schuchert 1893

Rhysotreta corrugata Cooper 1956
Ordovician

Rhyssochonetes Johnson 1970
Chonetacea Brano 1862

Rhyssochonetes aurora Johnson 1970
Devonian

Rhytiophora Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus blairi Mitter 1891
Mississippian

Rhytirhynchia Cooper 1957
Rhynchonettacea Gray 1848

Memithyris stadeni Dall 1910
Tertiary-Recent

Rhytisia Cooper&Grant 1975
Productacea Gray 1840

Rhytisia rugosa Cooper&Grant 1975
Permian

Rhytistrophia Caster 1939
Strophomenacea King 1846

Stropheodonta beckli Hall 1859
Devonian

Richthofenia Kayser 1881
Richthofeniacea Waagen 1885

Anomia lawrenciana Koninck 1863
Permian

Rictia Gregorio 1930
Uncertain

Rictia simptex Gregorio 1930
Permian

Rigbyetta Stehti 1956
Lyttoniacea Waagen 1833

Paralyttonia girtyi Wanner&Sieverts 1935
Permian

Rimirhynchia Ruckman 1917
Rhynchoneltacea Gray 1848

Rimirhynchia rimosiformis Duckman 1917
Jurassic

Rimirhynchopsis Dagys 1963
Rhynchonetlacea Gray 1848

Rimirhynchopsis triadicus Dagys 1963
Triassic

Riograndetta Kobayashi 1937
Orthacea Woodward 1852

Riograndetta subcircus tobayashi 1937
Ordovician

Riouttina Pajaud 1966
Thecideacea Gray 1840

Thecidea triangutaris Orbigny 1850
Jurassic

Ripidiorhynchus Sartenaer 1966
Rhynchonettacea Gray 1848

Terebratuta tivonica Ruch 1834
Devanan

Robertorthis Havticek 1977
Orthacea Woodward 1852

Robertorthis holoubkovensis Havticek 1977
Ordovician

Robinsonetta Moisseiev 1936
Rhynchonettacea Gray 1848

Robinsonella mastakanensis Moisseiev 1936
Triassic

Robustirhynchia Seifert 1963
Rhynchonettacea Gray 1848

Terebratuta ehningensis Duenstedt 1857
Jurassic

Rochatorhynchia Katz 1962
Rhynchonellacea Gray 1848

Rochatorhynchia rochatensis Katz 1962
Cretaceous

Rocheithyris Atmeras 1971
Terebratutacea Gray 1840

Rocheithyris Curvata Almeras 1971
Jurassic

Roemeretta Hall&Clarke 1890
Discinacea Gray 1840

Orbicuta grandis Vanuxem 1842
Devonian&Permian

Romingerina Hall&Clarke 1893
Stringocephatacea King 1850

Centronella jutia Winchett 1862
Mississippian

Rorespirifer Waterhouse&Piyasin 1970
Reticulariacea Waaoen 1883

Rorespirifer ruinosus Waterhouse&Piyasin 1970
Permian

Rosetta Andreeva 1972
Porambonitacea Davidson 1853

Rosella karakutensis Andreeva 1972
Ordovician

Rossirhynchus Gaetani 1964
Rhynchonettacea Gray 1848

Rossirhynchus adamantinus Gaetani 1964
Mississippian

Rostranteris Gemmettaro 1899
Dietasmatacea Schuchert 1913

Dietasma adrianense Gemmettaro 1894
Permian

Rostricettula Utrich&Cooper 1942
Rhynchonettacea Gray 1848

Rostricelluta rostrata Utrich&Cooper 1942
Ordovician

Rostrirhynchia Sucic-Protic 1969
Rhynchonettacea Gray 1848

Rostrirhynchia rostrata Sucic-Rrotic 1969
Jurassic

Rostrospirifer Grabau 1931
Spiriferacea King 1846

Spirifer torkinensis Mansuy 1998
Devonian

Potaia Rzonsnitzkaja 1959
Rhynchonettacea Gray 1848

Rhynchonetta subtrigona Meek&Worthen 1860
Misskssippian

Rotundostrophia Gratsianova 1960
Strophomenacea King 1846

Leptodontetla rotundata Khatfin 1948
Devonian

Rouitlieria Makridin 1960
Terebratutacea Gray 1849

Terebratula michalkowii Fahrenkoht 1856
Jurassic-Cretaceous

Poweltetta Wright 1963
Lingutacea Menke 1828

Rowetletta minuta Wright 1963
Ordovician

Rowleyetta Welter 1911
Athyridacea McCoy 1844

Terebratula fabutites Rowtey 1900
Mississippian

Rozmanaria weyer 1972
Rhynchonettacea Gray 1848

Liorhynchus enuitans Schmidt 1924
Devonian

Rudirhynchla Ruckman 1917
Rhynchonettacea Gray 1848

Rudirhynchia rudis Duckman 1917
Jurassic

Ruegenetta nwen 1977
Terebratettacea King 1850

Terebratuta humbotdti Hagenow 1842
Cretaceous

Rugaltarostrum Sartenaer 1961
Rhynchonettacea Gray 1848

Leiorhynchus madisonense Haynes 1916
Devonian

Rugaria Cooper&Grant 1969
Chonetacea gronn 1862

Chonetes hessensis King 1931
Permian

Rugatka Muir-Wood&Cooper 1960
Productacea Gray 1840

Products oaraindicus McKee 1935
Permian

Rugauris Muir-Wood&Cooper 1960
Productacea Gray 1840

Rugauris paucispina Muir-Wood&Cooper 1960
Mississippian

Rugia Steinich 1963
Terebratutacea Gray 1849

Rugia tenuicostata Steinich 1963
Cretaceous

Rugicostella Muir-Wood&Cooper 1960
Productacea Gray 1849

Productus nystlanus Koninck 1842
Mississippian

Rugitela Muir-Wood 1936
Zeilteriacea Allan 1940

Terebratuta buttata Sowerby 1823
Jurassic

Rugithyris Ruckman 1917
Terebratulacea Gray 1840

Terebratuta subomatogaster Buckman 1901
Jurassic

Rugivestis Muir-Wood&Cooper 1960
Productacea Gray 1840

Proboscidetla carinata Muir-Wood&Conoer 1957
Permian

Rugoctostus Easton 1962
Productacea Gray 1840

Rugoctostus nivatis Easton 1962
Mississippian&Permian

Rugoteptaena Havticek 1956
Strophomenacea King 1846

Rugoteptaena hornyi Havticek 1956
Siturian-nevonian

Rugosatrypa Rzonsnitzkaja 1975
Atrypacea Gill 1971

Spinatrypina tschernyschewi Rzonsnitzkaja 1964
Devonian

Rugosochonetes Sokotskaja 1950
Chonetacea Rronn 1862

Orthis hardrensis Phillips 1841
Carboniferrous

Rugosowerbyetla Mitchetl 1977
Plectambonitacea Jones 1928

Ptychogtyptus ambiguus Reed 1952
Ordovician

Rugostrophia Neuman 1971
Porambonitacea Davidson 1853

Rugostrophia silvestris Neuman 1971
Ordovician

Rugulatia Sokolskaja 1952
Spiriferacea King 1846

Spirifer rugulatus Kutorga 1842
Permian

Russietta makridin 1964
Datlinacea Reecher 1893

Terebratula royeriana Orb gny 1845
Jurassic

Russirhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Rhynchonella fischeri Rouillier 1847
Jurassic

Rustetla Watcott 1905
Kutorginacea Schuchert 1893

Rustella elsoni Walcott 1905
Cambrian

Rzonsnickiana mamedov 1976
Rhynchonellacea Gray 1848

Rzonsnickiana sadarakensis mamedov 1976
Devonian

Saccogonum Havlicek 1971
Pillingsellacea Schuchert 1893

Saccogonum saccatum Havticek 1971
Cambrian

Saccorhynchia Ching,Sun&Ye 1979
Rhynchonellacea Gray 1848

Saccorhynchia xiangdaica Ching,Sun&Ye 1979
Triassic

Sacothyris Ching,Sun&Ye 1979
Zeilleriacea Allan 1940

Aulacothyropsis sinosa Ching&Fang 1977
Triassic

Sagueresia Mohanti 1972
Rhynchonetlacea Gray 1848

Sagueresia suquerana Mohanti 1972
Devonian

Sajaketla Nasikanova 1968
Productacea Gray 1840

Sajakella formosa Nasikanova 1968
Carboniferous

Sakawairhynchia Tokuyama 1957
Rhynchonellacea Gray 1848

Sakawairhynchia tokomooensis Kopayashi&Tokuyama 1957
Triassic

Salacorthis Williams 1974
Orthacea Woodward 1852

Satacorthis costellata Williams 1974
Ordovlcian

Salairina Alekseeva 1970
Atrypacea Gill 1871

Salairina misera Atekseeva 1970
Devonian

Satairotoechia Rzonsnitzkaja 1968
Rhynchonellacea Gray 1848

Nudirostra pseudocarens Kilkov 1960
Devonian

Salgirella moisseiev 1936
Rhynchoneltacea Gray 1848

Rhynchonella alhertii Oppel 1861
Jurassic

Satonia Cooper&Whitcomb 1933
Pentameracea McCoy 1844

Salonia magnaplicata Cooper&Whitcomb 1933
Ordovician

Saloplia Williams 1955
Enteletacea Waagen 1884

Orthis salteri havidson 1871
Ordovician

Salopina Roucot 1960
Entetetacea Waagen 1884

Orthis tunata Sowerby 1839
Silurian-hevonian

Sampo Opik 1933
Plectambonitacea Jones 1928

Sampo hiiuensis Opik 1933
Ordovician

Sandia Sutherland&Harlow 1973
Productacea Gray 1840

Sandia brevis Sutherland&Harlow 1973
Pennsylvanian

Sanjuania Amos 1958
Rhynchoneltacea Gray 1848

Sanjuania dorsisutcata Amos1958
Mississippian

Sangiaothyris Yang&Xu 1966
Dielasmatacea Schuchert 1913

Sangiaothyris eltiptica Yang&Xu 1966
Triassic

Sardopenieni,Middlemiss&Owen 1973
Terebratulacea Gray 1840

Sardope sardoa tieni et al 1973
Cretaceous

Sarganosteqa Cooper&Grant 1969
Spiriferinacea Davidson 1884

Sarganostega transversalis Cooper&Grant 1969
Permian

Saucrorthis Xu,Rong&Liu 1974
Orthacea Woodward 1852

Saucrorthis minar Xu,Rong&Liu 1974
Ordovician

Saughina Oancroft 1940
Davidsoniacea long 1850

Schuchertella pertinaz Reed 1917
Siturian

Saukrodictya Wriaht 1964
Orthacea Woodward 1852

Saukrodictya hibernica Wright 1964
Ordovician

Savageina Oclucot 1975
Porambonitacea Davidson 1853

Terebratula deflexa Sowerby 1839
Silurian

Scacchinella Gemmellaro 1891
Aulostegacea muir-Wood&Cooper 1960

Scacchinella variabilis Gemmellaro 1897
Pennsylvanian-Permian

Scapellirhynchla Muir-Wood 1936
Rhynchonellacea Gray 1848

Terebratula scalpellum Ouenstedt 1851
Jurassic

Scambocris Liu 1979
Uncertain

Scambocris hordeolus Liu 1979
Cambrian

Scamnomena Passett 1977
Strophomenacea King 1846

Stroohomena rugata Lindstrom 1861
Silurian

Scapharina Cooper&Grant 1975
Aulosteclacea Muir-Wood&Cooper 1960

Scapharina rugosa Cooper&Grant 1975
Permian

Scaphelasma Cooner 1956
Acrotretacea Schuchert 1893

Scaphelasma septatum Cooper 1956
Ordovician

Scaphiocoelia Whitfield 1891
Stringocephalacea King 1850

Scaphlocoella holiviensis Whitfield 1891
Devonian

Scaphorthis Cooper 1956
Orthacea Woodward 1852

Scaphorthis virginiensis Cooper 1956
Ordovician

Sceletonia Cooper&Grant 1974
Lyttoniacea Waagen 1883

Sceletonia crassa Cooper&Grant 1974
Permian

Scenesla Cooper&Grant 1976
Spiriferinacea Davidson 1884

Scenesia extensa Cooper&Grant 1976
Permian

Schachriomonia Wikiforova 1978
Atrypacea Gill 1871

Schachriomonia schachrlomonica Niklforova 1978
Ordovician

Schedophyla Neuman 1971
Plectambonitacea Jones 1928

Schedophyla potteri Neuman 1971
Ordovician

Schellwienella Thomas 1910
Davidsoniacea King 1850

Spirifera crenistria Phillips 1836
Devonian-Carbonifernus

Schistochonetes Roberts 1971
Chonetacea Oronn 1862

Schlstochonetes abruptus Roberts 1971
Mississippian

Schizambon Walcott 1884
Siphonotretacea Kutorga 1848

Schizambon typicalis Walcott 1884
Cambrian-Ordovician

Schizobolus Ulrich 1896
Discinacea Gray 1840

hiscina truncata Hall 1863
Devonian

Schlzocrania Hall&Whitfield 1875
hiscinacea Gray 1840

Orbicula filosa Hall 1847
Ordovician-Devonlan

Schizopholis Waagen 1885
Acrotretacea Schuchert 1893

Schlzopholis rugosa Waagen 1885
Cambrian

Schizophorella Peed 1917
Orthacea Woodward 1852

Orthis fallas Salter 1846
Ordovician

Schizophoria vino 1850
Entetetacea Waagen 1884

Conchyliolithus resupinatus Martin 1809
Siturian-Permian

Schizoramma Foerste 1912
Orthacea Woodward 1852

Hebertella fissistriata Foerste 1909
Silurian

Schizospirifer Grabao 1931
Spiriferacea King 1946

Spirifer aoerturatus Frech 1911
Devonian

Schizotreta Kutorga 1848
Discinacea Gray 1840

Orbicula etliptica Kutorga 1846
Ordovician-Siturian

Schizotretoides Termier&Monod 1978
Acrotretacea Schuchert 1893

Schizotretoides tauricus Termier&Monod 1978
Ordnvician

Schmidtites Schuchert&LeVene 1929
Lingulacea Menke 1828

Schmidtia celata Volborth 1869
Ordavician

Schnurelta Schmidt 1964
Rhynchoneltacea Gray 1848

Terebratula schnuri Verneoil 1840
Devonian

Schrenkietta Darchatova 1973
Productacea Gray 1840

Productus schrenki Stuckenberg 1875
Permian

Schuchertella Girty 1904
Orthotetacea Waagen 1884

Streptorhynchus lens White 1862
Devonian-Permian

Schuchertellopsis Maittieux 1939
Davidsoniacea King 1850

Schuchertetlopsis durbutensis Maillieux 1939
Devonian

Schochertina Walcott 1905
Kutorginacea Schuchert 1893

Schuchertina cambria Walcott 1905
Cambrian

Schwagerispira Dagys 1972
Retziacea Waagen 1833

Retzia schwaqeri Pittner 1890
Triassic

Scoloconcha Gordon 1966
Productacea Gray 1849

Productus indianensis Hall 1858
Mississippian

Scumutus Steinich 1968
Terebratettacea King 1850

Scumulus inopinatus Steinich 1968
Cretaceous

Scutepustula Sarytcheva 1963
Productacea Gray 1840

Productos scotelatus Palashova 1955
Mississippian

Sedenticellula Cooper 1942
Stenoscismatacea Oehlert 1887

Camarophoria hamburgensis Welter 1970
Mississippian

Selenetta Hall&Clarke 1893
Uncertain

Setenella gracilis 4all&Clarke 1893
Devonian

Settithyris Middlemiss 1959
Terehratolacea Gray 1840

Terebratuta sella Sowerby 1823
Cretaceoos

Selloproductus Termier et al 1974
Productacea Gray 1840

Seltoproductus sellatus Termier et al 1974
Pennsylvanian-Permian

Semenewia Paeckelmann 1930
Chonetacea Pronn 1862

Chonetes concentricus Koninck 1847
Mississippian

Semibrachythyrina Yang&Ting 1962
Spiriferacea King 1846

Semibrachythyrina fasciculata Yang&Ting 1962
Permian

Semicostetla Muir-Wood&Cooper 1969
Productacea Gray 1840

Avonia oktahomensis Snider 1915
Mississippian

Seminuta McCoy 1844
Athyridacea McCoy 1844

Terebratula seminula Phillips 1836
Carboniferous

Semiotoechia Ljaschenko 1973
Rhynchonetlacea Gray 1848

Camarotoechia polita ljaschenko 1960
Devonian

Semiptanella Sarytcheva et al 1977
Productacea Gray 1840

Semiplanella carinthica Sarytcheva 1977
Mississippian

Semiptarns Sarytcheva 1952
Productacea Gray 1840

Productus semiplanus Schwetzow 1922
Mississippian-Pennsylvanian

Semiprodurtus Bublichenko 1956
Productacea Cray 1840

Semiproductus minax Rublichenko 1956
Oevonian-Mississippian

Semitreta Riernat 1973
Acrotretacea Schuchert 1873

Semitreta maior Riernat 1973
Ordovician

Sendaithyris Hatui 1940
Terebratulacea Gray 1840

Sendaithyris otutumieosis Hatai 1943
Tertiary

Senokosica Sucic-Protic 1971
Loboidothyridacea Makridln 1964

Senokosica matura Sucic-Protic 1971
Jurassic

Sentolunia Havlicek 1967
Ptectamboni tacea Jones 1928

Sentolunla senta Havlicek 1967
Ordovician

Sentosia Muir-Wood&Cooper 1960
Productacea Gray 1840

Krotovia praecursor Stainbrook 1947
Devonian

Septacamera Stenanov 1937
Stenoscismatacea Oehlert 1887

Camarophoria kutorgae Tschernyschew 1902
Pennsylvanlan-Permlan

Septachonetes Chatterton 1973
Chonetacea Rronn 1862

Septachonetes melanus Chatterton 1973
Devonian

Septalaria Leidhold 1928
Rhynchonellacea Gray 1848

Terebratula ascendens Steininoer 1853
Devonian

Septalariopsis Chen 1978
Rhynchonellacea Gray 1848

Septalariopsis zhonghuaensis Chen 1978
Devonian

Septaliphoria Leidhold 1921
Rhynchonellacea Gray 1848

Rhynchonella arduennensis Oppel 1857
Jurassic

Septaliphorioidea Yang&Zu 1966
Rhynchonellacea Gray 1848

Seotaliphorloidea paucicostata Yang&Xu 1966
Trlassic

Septamphiclina Jin&Fang 1977
Koninckinacea Davidson 1853

Septamphiclina qinhalensis Jin&Fang 1977
Triassic

Septaparmella Su 1976
Chonetacea nronn 1862

Septaparmella sinica Su 1976
Devonlan

Septarinia Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus leuchtenbergensis Koninck 1847
Mississippian

Septasteges Waterhouse&Piyasin 1973
Productacea Gray 1840

Seotasteges acanthus Waterhouse&Piyasin 1970
Premian

Septathyris Poucot,Johnson&Staton 1964
Athyridacea McCoy 1844

Athyris aliena hrevermann 1904
Devonian

Septatoechia Lohatscheva&Titova 1977
Rhynchonetlacea Gray 1848

Septatoechia inflata Lobatscheva&TItova 1977
Cretaceous

Septatrypa Kozlowskl 1929
Atrypacea Gill 1871

Septatrypa secreta Kozlowski 1929
Devonian

Septemirostellum Roberts 1971
Rhynchonellacea Gray 1848

Camarotoechia sept ima Veevers 1959
Mississippian

Septiconcha Termier et al 1974
Productacea Gray 1840

Septiconcha taenlosa Termier et al 1974
Pennsylvanlan-Permian

Septirhynchia Muir-Wood 1935
Rhynchonellacea Gray 1848

Rhynchonella azaisi Cottreau 1924
Jurassic

Septocrurella Wisniewska 1932
Rhynchoneltacea Gray 1848

Rhynchonetla sanctae Roemer 1870
Jurassic

Septocyclothyris Xu 1978
Rhynchonellacea Gray 1848

Septocyctothyris markamensis Xu 1978
Triassic

Septoproductus Frech 1911
Strophatosiacea Schuchert 1913

Productus abichi Waagen 1884
Permian

Septorthis Hints 1973
Orthacea Woodward 1852

Septorthis engurensis Nints 1973
Ordovician

Septospirifer Waterhouse 1971
Spiriferacea King 1846

Septospirifer tatondnkensis Waterhouse 197
Permian

septospirigeretta Grunt 1965
Athyridacea McCoy 1844

Septospirigerella baissalensis Grunt 1965
Permian

Septosyringothyris Vandercammen 1955
Spiriferacea King 1846

Septosyringothyris denaheti Vandercammen 1955
Mississippian

Septothyris Cooper&Williams 1935
Stringocephatacea King 1850

Septothyris septata Cooper&Willlams 1935
Devonian

Septutirhynchia Almeras 1966
Rhynchonettacea Gray 1848

Septutirhynchia davidi Almeras 1966
Jurassic

Seratrypa Copper 1967
Atrypacea Gill 1871

Terebratulas pectinatas Schroter 1777
Devonian

Serblothyris Sucic-Protic 1971
Loboidothyridacea Makridin 1964

Serhiothyris medioliasica Sucic-Protic 1971
Jurassic

Sergospirifer Evanova 1952
Spiriferacea King 1846

Spirifer okensis Nikitin 1890
Pennsytvanian

Sergunkovia Nativkin 1979
Spiriferacea King 1846

Pautonia talassica Wassilieva 1957
Devonian

Sericoidea Lindstrom 1953
Plectambonitacea Jones 1928

Leptaena sericea Hadding 1913
Ordoviciah

Serratocrista Orunton 1968
Davidsonlacea King 1850

Serratocrista fistutosa Brunton 1968
Carboniferous

Serrulatrypa Havticek 1977
Atrypacea Gill 1971

Boucotia incopnita Langenstrassen 1972
Devonian

Sestropoma Cooper&Grant 1969
Richthofeniacea Waagen 1885

Sestropoma cribriferum Cooper&Grant 1969
Permian

Setigerites Girty 1939
Praductacea Gray 1843

Productus setigerus Hall 1858
Mississippian

Settedabania Abramov 1970
Spiriferacea King 1846

Settedabania stepanovi Abramov 1970
Pennsylvanian

Severetta Sapetnikov 1963
Pentameracea McCoy 1844

Brooksina magniticaformis Sapetnikov 1963
Silurian

Shagametta Boucot&Harper 1968
Chonetacea Rronn 1862

Shagamella tudloviensis Baucot&Harper 1968
Silunan

Shateria Caster 1939
Strophomenacea King 1846

Strophomena Illpeni Dawson 1881
Siturian-Devonian

Shaterietta Harper&Boucot 1978
Stropheodontacea Caster 1939

Shaterietta delicata Harper&Poucot 1978
Silurian

Shigianetta fan 1978
Davidsoniacea King 1850

Shigianetta superominuta Xian 1978
Silurjan

Shiragia Kobayashi 1935
Orthacea Wooduard 1852

Shiragia biloba Kobayashi 1935
Cambrian

Shrockia Roucot&Smith 1978
Atrypacea Gill 1871

Shrockia twenhofeti Boucot&Smith 1978
Silurian

Shumardelta Welter 1910
Rhynchonellacea Gray 1848

Rhynchonella missouriensis Shumard 1855
Mississippian

Siberiothyris ragys 1968
Loboidothyridacea Makridin 1964

Siberiothyris crassus hagys 1968
Cretaceous

Siberistrophia Astashkina 1970
Strophomenacea King 1846

Brachyprion speranskii Khatfin 1948
Devonian

Siblratrypa Rzonsnitzkaja 1975
Atrypacea Gill 1871

Sibiratrypa vassinensis Rzonsnitzkaja 1975
Devonian

Sibiria Gorjansky 1977
Obotellacea Walcott&Schuchert 1938

Sibiria magna Gorjansky 1977
Cambrian

Sibirispira Atekseeva 1968
Atrypacea Gill 1871

Sibirispira inflata Alekseeva 1968
revonian

Sibiritoechia Atekseeva 1966
Rhynchonettacea Gray 1848

Sibiritoechia convexa Atekseeva 1966
Devonian

Sicelia Gortani&Merta 1934
Davidsoniacea King 1850

Canavaria acropedlon Merla 1928
Permian

Sichuanrhynchus Tong 1978
Rhynchoneltacea Gray 1848

Sichuanrhynchus sulcatus Tono 1978
Pennsylvanian

Sicorhyncha Havticek 1961
Rhynchonettacea Gray 1848

Stegerhynchus trinacrius Havlicek 1956
Devonian

Sieberetta Oehlert 1887
Pentameracea McCoy 1844

Pentamerus sieberi Ouch 1847
Silurian-Devonian

Sikaselta Nativkin 1979
Athyridacea McCoy 1844

Sikasella bisulcata Nalivkin 1979
Mississippian

Sitesiathyris Prugge 1977
Zeitleriacea Atan 1940

Terebratulites angustus Schlotheim 1820
Triassic

Simpticarina Cooper&Grant 1975
Productacea Gray 1840

Simplicarina incompta Cooper&Grant 1975
Permian

Simplicithyris Zezina 1976
Terebratellacea King 1850

Simplicithyris kuritensis Zezina 1976
Recent

Sinocyrtiopsis Gatinaud 1949
Spiriferacea King 1846

Cyrtiopsis transversa Grabau 1931
Devonian

Sinoproductetta Wang 1955
Productacea Gray 1843

Productella hemispherica Tien 1938
Devonian

Sinorhynchia Yang&Xu 1966
Rhynchoneltacea Gray 1848

Sinorhynchia bifaceta Yang&Xu 1966
Triassic

Sinorthis Wang 1955
Orthacea Woodward 1852

Sinorthis typica Wang 1955
Ordovician

Sinoshateria Xian 1978
Strophomenacea King 1846

Sinoshaleria guangshunensis Xian 1978
Devonian

Sinospirifer Grabau 1931
Spiriferacea King 1846

Spirifer sinensis Grabau 1931
revonian

Sinostrophia Hamada 1971
Strophomenacea King 1846

Sinostrophia kondoi Hamada 1971
Devonian

Sinotectirostrum Sartenaer 1961
Rhynchonellacea Gray 1848

Sinotectirostrum nedicnatr Sartenaer 1961
Devonian

Sinothyris Minato 1953
Reticulariacea Waagen 1881

Spirifer maureri Holzapfel 1896
Devonian-Mississippian

Sinuatella Muir-Wood 1928
Strophalosiacea Schuchert 1913

Leptaena sinuata Koninck 1851
Carboniferous

Sinucosta Dagys 1963
Spiriferinacea havidson 1884

Spirifer emmrichi Suess 1854
Triassic

Sinuplicorhynchia Dagys 1965
Rhynchonellacea Gray 1848

Sinuplicorhynchia kegalensis Dagys 1965
Triassic

Siphonosia Cooper&Grant 1975
Productacea Gray 1849

Siphonosia alleni Cooper&Grant 1975
Permian

Siphonotreta Verneuil 1845
Siphonotretacea Kutorga 1848

Urania unguiculata Eichwald 1829
Ordovician

Skelidorygma Carter 1974
Spirferacea King 1846

Spirifer subcardiiformis Hall 1858
Pennsylvanian

Skenidioides Schuchert&Cooper 1931
Orthacea Woodward 1852

Skenidioides billingsi Schuchert&Cooper 1931
Ordovician-Silurian

Skenidium Hall 1860
Orthacea Woodward 1852

Orthis insignis Hall 1859
Devonian

Slovenirhynchia Siblik 1957
Rhynchonellacea Gray 1848

Slovenirhynchia maninensis Siblik 1967
Jurassic

Smeathenella nancroft 1923
Enteletacea Waagen 1884

Smeathenella harnagensis Bancroft 1928
Ordovician

Socraticum Gregorio 1930
Uncertain

Socraticum firmum Gregorio 1930
Permian

Solidipontirostrum sartenaer 1970
Rhynchonellacea Gray 1848

Terebratula rugnoides Schnur 1851
Devonian

Somallrhynchia Weir 1925
Rhynchonellacea Gray 1848

Somalirhynchia africana Weir 1925
Jurassic

Somalitela Muir-Wood 1935
Zeilleriacea Allan 1940

Somalitela ambalensis Muir-Wood 1935
Jurassic

Somalithyris Muir-Wood 1935
Terebratulacea Gray 1840

Somalithyris macfadyeni Muir-Wood 1935
Jurassic

Soudleyella nancroft 1945
Enteletacea Waagen 1884

Soudleyella soudleyensis 3ancroft 1945
Ordovician

Sowerbina Fredericks 1928
Productacea Gray 1840

Productus timanicus Stuckenberg 1875
Permian

Sowerbyella Jones 1928
Plectambonitacea Jones 1928

Leptaena sericea Sowerby 1839
Ordovician-Silurian

Sowerbyites Teichert 1937
Plectambonitacea Jones 1928

Sowerbyites medioseptata Teichert 1937
Ordovician

Spanodonta Prendergast 1935
Plectambonitacea Jones 1928

Spanodonta hoskingiae Prendergast 1935
Ordovician

Spasskothyris Smirnova 1975
Loboidothyridacea Makridin 1964

Spasskothyris rjasanensis Smirnova 1975
Cretaceous

Sphaerirhynchia Coopergmuir-Wood 1951
Rhynchonellacea Gray 1848

Terebratula wilsoni Soweroy 1818
Silurian

Sphaerobolus Matthew 1895
Lingulacea Menke 1828

Lingulella spissa Billings 1872
Ordovician

Sphaeroidothyris Buckman 1917
Terebratulacea Gray 1840

Sphaeroidothyrs globisohaeroidalis guckman 1917
Jurassic

Sphenalosia Muir-Wood&Cooper 1963
Strophalosiacea Schuchert 1913

Sphenalosia smecleyi Mur-Wood&Cooper 1960
Permian

Sphenarina Cooper 1959
Rhynchonellacea Gray 1848

Rhynchonella sicula Sequenza 1870
Tertiary

Sphenophraqmus Imbrie 1959
Enteletacea Waagen 1884

Sphenophraomus nanus Imbrie 1959
Devonkan

Sphenorhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Terebratula plicatella Sowerby 1825
Jurassic

Sphenorthis Grubbs 1939
Uncertain

Sphenorthis niagarensis Grubbs 1939
Siturkan

Sphenospira Cooper 1954
Spiriferacea King 1845

Spkrifera alta Hall 1867
Devonkan

Sphenosteges Muir-Wood&Cooper 1960
Strophalosiacea Schuchert 1913

Aulosteges hispidus Girty 1920
Permian

Sphenotreta Cooper 1956
Rhynchonellacea Gray 1846

Sphenotreta cuneata Caoper 1956
Ordovician

Spinarella Cooper&Grant 1975
Productacea Gray 1840

Spinarella perfecta Cooper&Grant 1975
Permian

Spinatrypa Staknbrook 1951
Atrypacea Gill 1871

Atrypa hystrix Hall 1858
Devonian

Spinatrypina Rzonsnitzkaja 1964
Atrypacea Gill 1971

Spinatrypkna margarktaides Rzonsnitzkaja 1964
Devonian

Spinauris Roberts 1971
Praductacea Gray 1843

Soinauris cristata Roberts 1971
Mississippian

Spinella Talent 1956
Spirkferacea King 11346

Spinella buchanensis Talent 1956
Devonkan

Spinifrons Stehli 1954
Productacea Gray 1841

Spinifrons cluadratus Stehli 1954
Permian

Spinilinqula Cooper 1956
Lingulacea Menke 1828

Spinilingula kntralamellata Cooper 1956
Ordovician

Spinocarinifera Roberts 1971
Productacea Gray 1843

Spinocarinifera adunata Raberts 1971
Misskssipplan

Spinochonetes Rong,Xu&Yang 1974
Chonetacea nronn 1862

Spinochonetes notata Rong,Xu&Yang 1974
Sklurian

Spknocyrtia Fredericks 1916
Spirkferacea King 1846

Delthyris granulosa Conrad 1839
Devonkan

Spinocyrtkna Fredericks 1916
Suessiacea Waagen 1883

Cyrtia hamiltonensis Hall 1857
Devonkan

Spinolepismatkna Dagys 1974
Suessiacea Waagen 1883

Lepismatina rara Dagys 1963
Triassic

Spinolyttonia Sarytcheva 1964
Lyttoniacea Waagen 1853

Spknolyttonia arakeljani Sarytcheva 1964
Permian

Spknomarginifera Huanq 1932
Productacea Gray 1840

Spinomarginifera kueichowensis Huang 1932
Pennsylvanian-Permian

Spinomartinia Waterhouse 1968
Reticutarlacea waagen 1883

Spinomartinia spinosa Waterhouse 1965
Permian

Sninoptasia Boucot 1959
Cyrtiacea rredericks 1924

Spinoplasia qaspensis Boucot 1959
Devonian

Spinorthis Wright 1964
Orthacea Woodward 1852

Spinorthis geniculata Wright 1964
Ordovician

Spinorugifera Roberts 1976
Productacea Gray 1840

Spinorugifera chichesterensis Roberts 1976
Carboniierous

Spinospirifer Martynova 1961
Spiriferacea King 1846

Spirifer nuraensis Simorin 1956
Devonian

Spinostrophia Jiang 1978
Strophomenacea King 1846

Spinostrophia ellipsoidea Jiang 1978
Devonian

Spinuticosta Nalivkin 1937
Productacea Gray 1843

Productus soinuticostus Hall 1857
Devonlan

Spinutiptica Campbetl 1961
Spiriferinacea navidson 1884

Spinuliptica spinutosa Campbett 1961
Pennsylvanian

Spinulothete Rowett 1977
Acrotretacea Schuchert 1893

Siphonotreta dubla Walcott 1912
Cambrian

Spinulothyris Antostschenko 1973
Zeilteriacea Altar 1940

Spinutothyris patitensis Antostschenko 1973
Jurassic

Spiretytha Fredericks 1924
Reticutariacea Waagen 1883

Spirifer schei Tschernyschew 1916
Permian

Spirifer Sowerby 1818
Spiriferacea King 1846

Conchytiolithus striatus Martin 1993
Carboniferous

Spiriferetta Tschernyschew 1902
Spiriferacee King 1846

Spirifer saranae Verneult 1845
Pennsylvanian-Permian

Spirifereltina Fredericks 1924
Spiriferinacea Davidson 1884

Terebratutites cristatus Schlotheim 1816
Permian

Spiriferina Orbigny 1847
Spiriferinacea Davidson 1884

Spirifer walcotti Sowerby 1823
Trlassic-Jurassic

Spiriferinaetta Fredericks 1926
Spiriferacea King 1846

Spirifer artlensis Stuckenberq 1898
Permian

Spiriferinoides Tokuyama 1957
Spiriferinacea navidson 1184

Spiriferinoides sakawanus Kobayashi&Tokuyama 1957
Triassic

Spirigeretta Waagen 1893
Athyridacea McCoy 1844

Spirigerelta derbyi Waagen 1883
Permian

Spirigerettina nagys 1974
Athyridacea McCoy 1844

Spirigerellina pygmaea Dagys 1974
Triassic

Spirigerina Orbigny 1847
Atrypacea Gill 1871

Terebratuta marginatis Dalman 1828
Silunar

Spirinetta Johnston 1941
Reticulariacea waagen 1883

Spirinetta caecistriata Johnston 1941
Silunar

Spirisosium Gregorio 1930
Strophatosiacea Schuchert 1913

Spirisosium primarium Gregorio 1930
Permiani

Spiropunctifera Ivanova 1971
Spiriferinacea havidson 1884

Spiropunctifera tutensis Ivanova 1971
Pennsylvanian

Spitzbergenia Kottjar 1977
Productacea Gray 1860

Productus toveni Wiman 1914
Permian

Spondylobolus McCoy 1851
Uncertain

Spondylobolus craninlaris McCoy 1851
Silurian

Spondytopyxis Johnson,Boucot&Murphy 1976
Pentameracea McCoy 1844

Spondylopyxis ignotus Johnson et al 1976
Silurian

Spondylosplra rooper 1942
Suessiacea Waagen 1883

Spondylospira reesidei Cooper 1942
Triassic

Spondylosoiriferina nagys 1972
Spiriferinacea Davidson 1884

Pennospiriferina glabra hagys 1972
Triassic

Spondylnstrophia Kotkov 1967
Orthacea Woodward 1952

Spondylostrophia lata Kulkov 1967
Silurian

Spondylotreta Cooper 1956
Acrotretacea Schuchert 1893

Spondytotreta concentrica Cooper 1956
Ordovician

Spuriosa Cooper&Grant 1975
Autostegacea Muir-Wood&Cooper 1960

Spuriosa circularis Cooper&Grant 1975
Permian

Spurispirifer Mavticek 1971
Cyrtiacea Fredericks 1924

Spirifer spurius Barrande 1848
Devonian

Spyridiophora Cooper&Stehli 1955
Autostegacea Muir-Wood&Cooper 1960

Spyridiophora distincta Cooper&Stehli 1955
Pennsylvanlan-Permian

Sauamaria Muir-Wood&Cooper 1960
Productacea Gray 1840

Snuamaria moorei Muir-Wood&Cooper 1960
Permian

Squamatina Havlicek&Racheboeuf 1979
Chonetacea Bronn 1862

Chonetes snuamatuta narrande 1847
Devonian

Squamitinguletla Xu 1978
Lingutacea Menke 1828

Squamitingutella zhonghuaensis Xu 1978
Ordovician

Squamiptana Sucic-Protic 1971
Loboidothyridacea Makridin 1964

Squamiplana piroidea sucic-Protic 1971
Jurassic

Squamirhynchia nuckman 1917
Rhynchonettacea Gray 1848

Terebratula triplicata Quenstedt 1871
Jurassic

Squamutaria Gemmeltaro 1899
Reticulariacea Waagen 1883

Squamularia rotundata Gemmellaro 1899
Carboni ferous-Permian

Souamularlina Fredericks 1916
Suessiacea Waagen 1883

Cyrtina parva Gurich 1896
Devonian

Stegacanthia Muir-Wood&Cooper 1960
Productacea Gray 1840

Stegacanthia bowsheri Muir-Wood&Cooper 1960
Mississippian

Stegerhynchops Amsden 1978
Rhynchonellacea Gray 1848

Stegerhynchops marbtensis Amsden 1978
Silurian

Stegerhynchus Foerste 1909
Phynchonettacea Gray 1848

Rhynchonella wh tiipraecursor Foerste 1909
Silurian

Stegocornu Durkoop 1970
Rhynchonellacea Gray 1848

Stegocornu procerum Durkoop 1970
Silurian

Stegorhynchella Rzonsnitzkaja 1959
Rhynchonellacea Gray 1848

Stegerhynchus decimplicatus Tschernyschew 1937
Silurian

Steinhagetla Goldring 1957
Productacea Gray 1840

Leptaena membranacea Phillips 1841
Devonian

Stetckia Crickmay 1963
Productacea Gray 1840

Stetckia gatearius Crickmay 1963
Devonian

Stenocamara Cooper 1956
Porambonitacea Davidson 1853

Stenocamara perolexa Cooper 1956
Ordovician

Stenogtossariorhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Leiorhynchus awokanak McLaren 1962
Devonian

Stenopentamerus Boutot&Johnson 1979
Pentameracea McCoy 1844

Pentamerus oblongus Kindle&Breger 1994
Silurian

Stenosarina Cooper 1977
Terebratulacea Gray 1840

Stenosarina angustata Cooper 1977
Recent

Stenoscisma Conrad 1839
Stenoscismatacea Oehlert 1887

Terebratuta schlotheimil 8uch 1835
Mississippian-Permian

Stepanoviella Zavodowsky 1960
Productacea Gray 1840

Stepanovieltd paracurvata Zavodowsky 1960
Permian

Stepanoviina Zavodowsky 1968
Delthyridacea Phillios 1841

Neophricodothyris larini Zavodowsky 1958
Permian

Stereochia Grant 1976
Productacea Gray 1840

Stereochia litostyla Grant 1976
Permian

Stethothyris Thomson 1918
Terebratellacea King 1850

Stethothyris uttleyi Thomson 1918
Tertiary-Recent

Stichotrophia Cooper 1948
Porambonitacea Davidson 1853

Stichotrophia lameltata Cooper 1948
Ordovician

Stictozoster Grant 1976
Productacea Gray 1840

Stictozoster leptus Grant 1976
Permian

Stiphrothyris Ruckman 1917
Terebratulacea Gray 1840

Terebratula globata Davidson 1878
Jurassic

Stipulina Muir-Wood&Cooper 1960
Productacea Gray 1840

Productus deshayesianus Koninck 1842
Mississippian

Stita Gregorio 1930
Lyttonlacea Waagen 1893

Lyttonia papera Gregorio 1930
Permian

Stolmorhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Stolmorhynchia stolidota Ruckman 1917
Jurassic

Stotzenburgiella gittner 1903
Athyridacea McCoy 1844

Spirigera bukowskil gittner 1903
Triassic

Straetenia Maillieux 1935
Rhynchonellacea Gray 1848

Rhynchonella dunensis Drevermann 1902
Devonian

Streptaria Cooper 1959
Rhynchonellacea Gray 1848

Terebratula debuchii Michelotti 1938
Tertiary

Streptis Davidson 1881
Triplesiacea Schuchert 1913

Terebratula arayli Davidson 1848
Ordovician-Silurian

Streptopomum Havticek 1967
Davidsoniacea King 1850

Streptorhynchus mjatschkovensis Sokolskaja 1952
Mississippian

Streptorhynchus King 1850
Davidsoniacea King 1850

Terebratulites pelargonatus Schlotheim 1816
Carboniferous-Permian

Striarina Cooper 1973
Rhynchonellacea Gray 1848

Rhynchonella valdiviae Helmcke 1940
Pecent

Striatifera Chao 1927
Productacea Gray 1940

Mytilus striatus Fischer 1937
Mississippian-Permian

Striatochonetes Mikrjukov 1968
Chonetacea Prono 1862

Strophomena setigera Hall 1843
Devonian-Mississippian

Striatoproductella Krylova 1962
Productacea Gray 1840

Striatoproductus tungusensis Nalivkin 1960
Devonian

Striatoproductus Nalivkin 1947
Productacea Gray 1840

Orthis sericea Buch 1838
Devonian

Striatopugnax Chen 19711
Rhynchonellacea Gray 1848

Striatopugnax triplicata Chen 1978
Devonian

Striatospica Waterhouse 1975
Productacea Gray 1840

Striatifera kayseri Chao 1927
Permian

Stricklandia Billings 1859
Pentameracea mccoy 1844

Atrypa lens Sowerby 1839
Silurian

Stricklandiella Sapelnikov et al 1973
Pentameracea McCoy 1844

Stricklandiella asentata Saoelnikova et al 1973
Ordovician

Stricklandistroohia Sapelnikov et al 1975
Pentameracea McCoy 1844

Stricklandistrophia lata Saoelnikov et al 1975
Silurian

Striglrhynchia Cooper&Grant 1969
Rhynchonellacea Gray 1848

Rhynctonella indentata Shumard 1860
Permian

Strigospina Liao 1979
Productacea Gray 1940

Strigospina lineata Liao 1979
carboniferous

Striirhynchia Buckman 1917
Rhynchonellacea Gray 1848

Rhynchonetla dorsetensis navidson 1984
Jurassic

Striispirifer Cooper&Muir-Wood 1951
Cyrtiacea Fredericks 1924

Delthyris niagarensis Canrad 1842
Silurian-Devonian

Striithyris Muir-Wood 1935
Terebratulacea Gray 1840

Striithyris somaliensis Muir-Wood 1935
Jurassic

Stringocephalus Defrance 1825
Stringocephalacea Kir ct 1850

Terebratula burtini Defrance 1825
Devonian

Stringomimus Struve 1965
Stringocephalacea King 1850

Geranocephalus pseudapaedicus Struve 1965
Devonian

Striochonetes Waterhouse&Piyasin 1970
Chonetacea Pronn 1862

Striochonetes scutella Waterhouse&Piyasin 1970
Permian

Strixella Roucot&Amsden 1958
Enteletacea Waagen 1884

Rhipidomella acutisuicata Amsden 1951
Silurian

Strophatosia ring 1844
Strophalosiacea Schuchert 1913

Strophalosia gerardi King 1846
Permian

Strophalosiella Licharew 1935
Strophalosiacea Schuchert 1913

Strophalosiella coraeformis Licharew 1935
Permian

Strophatosiina Licharew 1935
Strophatosiacea Schuchert 1913

Aulosteges tibeticus Diener 1897
Permian

Strophochonetes Muir-Wood 1962
Chonetacea Prono 1862

Chonetes cinaulatus Lindstrom 1860
Silurian-Devonian

Strophodonta Hall 1850
Strophomenacea ring 1846

leptaena demissa Conrad 1842
Ordovician-Devonian

Strophomena Rafinesque 1824
Strophomenacea ring 1846

Strophomena rugosa Rafinesque 1824
Ordovician

Strophonetla Hall 1879
Strophomenacea ring 1846

Strophomena semifasciata Hall 1863
Silurian-Devonian

Strophonellites Havlicek 1967
Strophomenacea ring 1846

Leptaena patricia Parrande 1848
Silurian

Strophoneltoides laster 1939
Strophomenacea King 1846

Strophodonta reversa Hall 1858
Devonian

Strophopleura Stainhrook 1947
Spiriferacea King 1846

Spirifer notabilis Kindle 1909
Devonian

Strophoprion Tuenhofet 1914
Strophompnacpa King 1846

Prachyprion genlculatum Shaler 1865
Silurian

Strophoproductus Nalivkin 1937
Productacea Gray 1840

Productella hystricula Hall 1867
Devonian

Strephorichthofenia Tprmier et al 1974
Richthofeniacea Waacien 1885

Strophorichthofenia afghana Termier et al 1974
Pennsylvanian-Permiar

Stroudithyris Ruckman 1917
Terebratulacea Gray 1840

Terpbratula pisclithica huckman 1890
Jurassic

Struveina goucot 1975
Delthyridacea Phillips 1841

Spirifer daleidensis Steininaer 1853
Dovonian

Stuartella getanski 1979
Dielasmatacea Schuchert 1913

Stuartetla vera Retansk, 1925
Devonian

Sturtella Savane 1971
Stringocephalacea vino 1850

Sturtella manclageriensis Savaoe 1971
Devonian

Suhansiria Sahni&Srivastava 1956
Spiriferacea King 1846

Subansiria ranganensis Sahnil&Srivastava 1956
Ferinas

Subcusoidella Mittmeyer 1965
Spirlferacra King 1846

Spirifer subcuspidatus Schnur 1853
Devonian

Subgtobosochonetes Afanasjpva 1976
Chonetacea gronn 1862

Chonptes malpvkensis Sokolskaja 1953
Mississippian

Subrensselandia Cloud 1942
Stringoceohatacea King 1850

Newberria claypolii Hall 1891
Devonian

Subriana Sapelnikov 1960
Pentameracea McCoy 1844

Subriana subrini Sapelnikav 1963
Silurian

Substriatifera Kotljar 1964
Productacen Gray 1840

Products mytiloides hredericks 1925
bernias

Suessia Destongchamps 1855
Suessiacea manen 1883

Suessia costata Destongchamos 1855
Jurassic

Suiaetla moisseiev 1956
Rhynchonellacpa Gray 1848

Suiaella ideoera Moisselev 1956
Cretaceous

Sutcataria Cooper&Grant 1969
Chonetacea Pronn 1862

Chonetina rostrata Duntar&Condra 1937
Ferinas

Sulcathyrls hurkoop 1970
Athyridacea McCoy 144

Sutcathyris neriolicata Durkoop 1970
Devonian

Sulcatina Schmilt 1964
Rhynchoneltacea Gray 1848

Trigonirhynchia sulcata Cooppr 1942
Silurian

Sulcatinella hasys 1974
Dietasmatacea Schuchert 1913

Sulcatinella sulcata hauys 1974
Triassic

Sulcatospira Xu 1979
Atrypacea Gill 1871

Zygospira olicata Xu 1979
Ordevician

Sulcatosoirifer Maxidell 1954
Spiriferacea King 1846

Sulcatosoirifer primus Maxwell 1954
Devonian

Sulcatostrophia laster 1939
Strophomenacea King 1846

Leptostrophia camerata Fentos&Fenton 1924
Devonian

Sulcatothyris Dagys 1974
Dietasmatacea Schuchert 1913

Sulcatothyris tkhachensis Dagys 1974
Triassic

Sulciptica Waterhouse 1968
Spiriferacea King 1946

Sulciplica transversa Waterhouse 1968
Permian

Sulcirhynchia Purri 1953
Rhynchonellacea Gray 1848

Rhynchonella vatangiensls Loriot 1864
Cretaceous

Sulcirostra Cooper&Muir-Wood 1951
Rhynchonellacea Gray 1848

Rhynchonellina seguenzae Gemmellaro 1871
Triassic-Jurassic

Sulcorhynchia Dagys 1974
Rhynchonellacea Gray 1848

Holcorhynchia boreatis Dagys 1965
Triassic

Supertritobus Poucot&Johnson 1979
Pentameracea McCoy 1844

Supertrilohus hawthornensis Boucot&Johnson 1979
Silurian

Surugathyris Yabe&Hatal 1934
Terebratulacea Gray 1840

Terebratutina surugaensis Yabe&Hatal 1934
Recent

Svaljavithyris Tchorszhewsky 1974
Loboidothyridacea Makridin 1964

Terebratuta carpathica Zittet 1870
Jurassic

Svobodaina Havlicek 1950
Enteletacea Waagen 1884

Orthis inclyta Barrande 1879
Orlovician

Swaicoelia Hamada 1968
Cyrtlacea Fredericks 1924

Swaicoelia rotunda Ramada 1968
Devonian-mississippian

Swantonia Walcott 1905
Uncertain

Camarella antiquata Billings 1861
Cambrian

Symmatrypa Mizens&Sapelnikov 1975
Atrypacea Gill 1871

SYmmatrypa Piceaplicata mizens&Sapelnikov 1975
Silurian

Sysphythyris Smirnova 1966
Terebratulacea Gray 1840

Terebratulina arquinensis Molsseiev 1949
Cretaceous

Synatrypa Copper 1966
Atrypacea Gill 1871

Desnuamatia subzonata Piernat 1964
Devonian

Syndielasma Cooper 1956
Ptectambonitacea Jones 1928

Syndielasma biseptatum Cooper 1956
Ordovician

Syntritasma Meek&Worthen 1865
Enteletacea Waagen 1884

Spirifer hemiplicatus Hall 1852
Pennsylvanian-Permian

Syntrophia Hall&Clarke 1893
Porambonitacea Davidson 1853

Triplesia lateralis Whitfield 1886
9rdovician

Syntrophina Utrich 1928
Porambonitacea navidson 1853

Syntrophia campbelli Walcott 1912
Ordovician

Syntrophinetla Utrich&Cooper 1934
Porambonitacea Davidson 1853

Syntrophinella typica Utrich&Cooper 1934
Ordovician

Syntrophioides Schuchert&Cooper 1931
Uncertain

Rjttinqsetta harlanensis dalcott 1905
Cambrian

Syntrophopsis Utrich&Cooper 1936
Porambonitacea Davidson 1853

Syntrophopsis magna Ulrich&Cooper 1936
Ordovician

Syringopteura Schuchert 1910
Spiriferacea vino 1846

Spirifer randalli Simpson 1890
Devonlan-Mississippian

Syringospira Kindle 1909
Spiriferacea King 1846

Syringospira prima Kindle 1909
Devonian

Syringothyris Winchell 1863
Spiriferacea ring 1846

Syringothyris typa Winchetl 1863
Devonian-Mississippian

Tadschikia Nikiforova 1937
Rhynchonetlacea Gray 1848

Wilsonetla wilsoniaformis Nikiforova 1937
Silurian

Taemostrophia Chatterton 1973
Strophomenacea King 1846

Taemostrophia patmorei Chatterton 1973
Devonian

Taeniothaerus Whitehouse 1928
Strophatosiacea Schuchert 1913

Productus subquadratus Morris 1845
Pennsytvanian-Permian

Taffia utrich 1926
Ptectambonitacea Jones 1928

Taffia olanoconvexa Butts 1926
Ordovician

Tafilaltia Havlicek 1970
Entetetacea Waagen 1884

Tafilattia occidentatis Havticek 1970
Ordovician

Taimyrella Ustritsky 1963
Reticutariacea Waagen 1883

Martiniopsis pseudodarwini Einor 1946
Permian

Taimyropsis Ustritsky 1963
Davidsoniacea King 1850

Taimyroosis monstrosus Jstritsky 1963
Permian

Taimyrothyris nagys 1969
Loboidothyridacea Makridin 1964

Taimyrothyris bisutcatus Daqys 1968
Jurassic

Tainotoechia Tcherkesova 1967
Rhynchonettacea Gray 1848

Sphaerirhynchia subarmoricana Nikiforova 1960
Devonian

Tateoteptaena Havticek 1967
Strophomenacea King 1846

Tateoteotaena tateotata Havticek 1967
Devonian

Tamaretta Owen 1965
Terebratettacea King 1850

Terebratula tamarindus Sowerby 1836
Cretaceous

Tanakura Hatai 1936
Terebratettacea Sino 1850

Magasetla fibuld Hayasaka 1921
Tprtiary

Tanerhynchia Attan 1947
Rhynchonellacea Gray 1848

Eatonia oarki Altari 1935
Devonian

Tangshanelta Chao 1929
Spiriferacea King 1846

Tangshanetta kaipingensis Chao 1929
Pennsytvanian

Tangkiangia Xu 1977
Plicanoptitacea Xu 1977

Tangxiangia delicata Xu 1977
Devonian

Tannuspirifer lvanova 1963
Cyrtfacea Fredericks 1924

Spiri fer pedaschenkoi Tschernyschew 1937
Silurian

Tapajotia nresser 1954
Davidsoniacea King 1850

Streptorhynchus taoajatensis Derby 1874
Pennsylvanian-Permian

Taphrodonta Cooper 1956
Ptectambonitacea Jones 1928

Taphrodonta paraltela Cooper 1956
Ordovician

Taphrorthis Cooper 1956
Orthacea Wooduard 1852

Taphrorthis emarginata Cooper 1956
Ordovician

Taphrosestria Cooper&Grant 1975
Richthofeniacea Waagen 1885

Taohrosestria pecutiaris Cooper&Grant 1975
Permian

Tarandrospirifer Simakov 1970
Spiriferacea King 1846

Cyrtospirifer tarandrus Nalivkin 1960
Devonian

Tarfaya Havlicek 1971
Orthacea Woodward 1852

Tarfaya marocana Havlicek 1971
Ordovician

Tastaria Havticek 1965
Strophomenacea King 1846

Leptostrophia tasta Rukavischnikova 1961
Silurian

Tauromenia Sequenza 1885
Zeitteriacea Atlan 1940

Tauromenia potymorpha Seguenza 1885
Jurassic

Taurothyris Kyansep 1961
Terebratulacea Gray 1840

Taurothyris avundaensis Kyansep 1961
Jurassic

Tautosia Cooper&Grant 1969
Rhynchonettacea Gray 1848

Tautosia fastigiata Cooper&Grant 1969
Rermlan

Tazzarinla Havticek 1971
Orthacea Woodward 1852

Tazzarini a drotae Havticek 1971
Ordovician

Tcheqemithyrls Tchorszhewsky 1972
Terebratutacea Gray 1840

Terebratula tcheqemensis Moisseiev 1934
Jurassic

Tcherskidium Nikolayev&Sapetnikov 1969
Pentameracea McCoy 1844

Conchidium unicum Nikotayev 1968
Ordovician

Tecnocyrtina Johnson&Norris 1972
Cyrtinacea rredericks 1912

Cyrtina billingsi Meek 1868
Devonian

Tectarea Licharew 1928
Richthofeniacea Waagen 1885

Tectarea rohinsoni Licharew 1928
Permian

Tegutiferina Schuchert&LeVene 1929
Strophatosuacea Schuchert 1913

Tequtifera deformis Schettwien 1898
Rennsytvanian-Permian

Tegulithyris Buckman 1917
Terebratutacea Gray 1840

Terebratula bentleyi Davidson 1851
Jurassic

Tegutorhynchla Chapman&Crespin 1923
Rhynchonellacea Gray 1848

Rhynchonella souamosa Hutton 1873
Tertiary-Recent

Teichertina Veevers 1959
Entetetacea Waacen 1884

Teichertina fitzroyensis Veevers 1959
Devonian

Teichostrophia Harper et al 1967
Strophomenacea King 1846

Strophomena tepis Bronn 1837
Devonian

Tetaeoshateria Williams 1950
Strophomenacea King 1846

Shateria sulcata Williams 1950
Devonian

Tenettodermis Havlicek 1971
Reticutariacea Waagen 1883

Tenellodermis microdermis Havticek 1971
Devonian

Tenisia Martynova 1970
Spiriferacea King 1846

Spirifer dada Nativkin 1937
Devonlan

Tenticospirifer Tien 1938
Spiriferacea King 1846

Spirifer tenticulum Verneuil 1845
Devonian

Tenuiatryoa Rzonsnitzkaja 1975
Atrypacea Gill 1871

Tenulatrypa subsatairica Rzonsnitzkaja 1975
Devonian

Tenuichonetes Jing&Hu 1978
Chonetacea Rronn 1862

Chonetes tenui irata Chao 1928
Permian

Tenuicostetta Mittmeyer&Geib 1967
Spiriferacea King 1846

Spirifer subcuspidatus Scupin 1900
Devonian

Tenuisinurostrum Sartenaer 1967
Rhynchoneltacea Gray 1848

Camaroohoria crenutata Gosselet 1877
hevonlan

Teratelasma Cooper 1956
Strophomenacea King 1846

Teratetasma neumani Cooper 1956
Ordovician

Terebratalia Reecher 1893
Terebratetlacea King 1850

Terebratuta transversa Sowerby 1846
Tertiary-Recent

Terebratatiopsis Smirnova 1962
Terebratettacea King 1850

Terebratatiopsis nuadrata Smirnova 1962
Cretaceous

Terebratetta nrbigny 1847
Terebratettacea King 1850

Terebratula chilensis Rroderip 1833
Tertiary-Recent

Terebratula Muller 1976
Terehratulacea Gray 1840

Anomia terebratula Linne 1958
Tertiary

Terebratulina Orbigny 1947
Terebratulacea Gray 1840

Anomia retusa Linne 1958
Jurassic-Recent

Terebratuloidea Waagen 1883
Rhynchonellacea Gray 1848

Terebratuloidea davidsoni Waagen 1883
Pennsylvanian-Permian

Terebratulopsis Gregorio 1930
Rhynchonellacea Gray 1848

Rhynchonellina bllobata Gregorio 1930
Triassic-Jurassic

Terebrirostra Orbigny 1847
Terebratellacea King 1850

Terebratula lyra Sowerby 1816
Cretaceous

Terrakea Booker 1931
Productacea Gray 1840

Productus brachythaerus Morris 1845
Permian

Tesuquea Sutherland&Harlow 1973
Productacea Gray 1840

Tesuquea formosa Sutherland&Harlow 1973
Pennsylvanian

Tetracamera Welter loin
Rhynchonellacea Gray 1848

Rhynchonelta subcuneata Hall 1858
Mississippian

Tetractinella Rittner 1893
Athyridacea McCoy 1844

Terebratulites triqonellus Schtotheim 1820
Triassic

Tetragonetes Cooper&Grant 1975
Chonetacea Rronn 1862

Pyoros quadrangulatus Cooper&Grant 1975
Permian

Tetralobula Utrich&Cooper 1936
Porambonitacea Davidson 1853

Tetralobula delicatula Utrich&Cooper 1936
Ordovician

Tetraodontella Jaanusson 1962
Plectambonitacea Jones 1928

Tetraodontella biseptata Jaanusson 1962
Ordovician

Tetraphalerella Wang 1949
Strophomenacea King 1846

Tetraphalerella cooperi Wang 1949
Ordovician

Tetrarhynchia Buckman 1917
Rhynchonellacea Gray 1848

Terebratula tetraedra Sowerby 1812
Jurassic

Tetratomia Schmidt 1941
Rhynchonellacea Gray 1848

Terebratula tetratoma Schnur 1851
Devonian

Texarina Cooper&Grant 1970
Crytotonellacea Thomson 1926

Texasia oblonqata Cooper&Grant 1969
Permian

Texathyris Carter 1972
Spiriferacea King 1846

Texathyris elegantula Carter 1972
Mississippian

Thaerodonta Wang 1949
Plectambonitacea iones 1928

Thaerodonta aspera wang 1949
Ordovician

Thamnosia Cooper&Grant 1969
Productacea Gray 1840

Thamnosia anterospinosa Cooper&Grant 1969
Permian

Thaumatosia Cooper 1973
Terebratellacea King 1850

Thaumatosia anomala Cooper 1973
Recent

Thaumatrophia Wang 1955
Porambonitacea Davidson 1853

Thaumatrophia sinensis Wang 1955
Ordovician

Thebesia Amsden 1974
Rhynchonellacea Gray 1848

Rhynchotreta thebesensis Goerste 1909
Ordovician-Silurian

Thecidea Defrance 1822
Thecideacea Gray 1840

Thecidea radians Defrance 1822
Cretaceous

Thecidella munier-Chalmas 1887
Thecideacea Gray 1840

Thecidea normaniana Munier-Chalmas 1887
Triassic-Jurassic

Thecidellella Hayasaka 1938
Thecideacea Gray 1849

Thecldellina japonica Kuroda 1938
Recent

Thecidellina Thnmson 1915
Thecideacea Gray 1840

Thecidea barretti Davidson 1864
Tertiary-Recent

Thecidiopsis Munier-Chalmas 1887
Thecideacea Gray 1840

Thecidea digitata Sowerby 1823
Cretaceous

Thecocyrtella Pittner 1892
Suessiacea Waagen 1883

Cyrtotheca ampezzana Bittner 1890
Triassic

Thecocyrtelloidea Yang&Xu 1966
Cyrtinacea rredericks 1912

Thecocyrtellnidea tubulosa Yang&Ku 1966
Triassic

Thecospira Zunmayer igsn
Davidsoniacea King 1850

Thecidea haidingeri Suess 1854
Triassic

Thecospirella Pittner 1900
Uncertain

Thecospirella loczyi Bittner 1900
Triassic

Thecospiropsis nagys 1974
Thecospiracea Plttner 1890

Thecospira semseyi Pittner 1900
Triassic

Thedusia Cooper&Grant 1976
Retziacea Waagen 1883

Hustedia meekana Girty 1939
Permian

Theodossia Nalivkin 1925
Spiriferacea King 1846

Spiri fer anossofi Verneuil 1845
Devonian

Thiemella Williams 1908
Enteletacea Waagen 1834

Thiemella villenovia willlams 1908
nevonlan-Mississipplan

Thliborhynchia Lenz 1967
Rhynchonellacea Gray 1848

Thllborhynchia julli Lenz 1967
Devonian

Thomasaria Stainbrook 1945
SPiriferacea King 1846

Thomasaria altumbona Stainbrook 1945
Devonian

Thomasella rredericks 1928
Productacea Gray 1840

Productus wrighti navidson 1861
Mississippian

Thuleproductus Sarytcheva&Waterhouse 1972
Producfacea Gray 1843

Thuleproductus crassauritus Sarytcheva et al 1972
Permian

Thurmannella Leidhold 1921
Rhynchonellacea Gray 1848

Terebratula thurmanni Voltz 1833
Jurassic

Thysanotos Mickwitz 1896
Lingulacea Menke 1878

Obolus si luricus Eichwald 1843
Ordovician

Tianzhushanella Liu 1979
Uncertaln

Tianzhushanella ovata Liu 1979
Cambrian

Tibetothyris Ching&Sun 1976
Dielasmatacea Schuchert 1913

Tibetothyris depressa Ching&Sun 1976
Triassic

Tichosina Cooper 1977
Terebratulacea Gray 1840

Tichosina floridensis Cooper 1977
Recent

Timalina Ratrukova 1969
Lingulacea Menke 1828

Timalina miranda Batrukova 1969
Devonian

Timaniella garchatova 1963
Spiriferacya Vino 1846

Timaniella festa Rarchatova 1968
Permian

Timanospirifer Ljaschenko 1973
Spiriferacea King 1846

Uchtospirifer timanicus Ljaschenko 1958
Devonian

Timorhynchia Ager 1964
Rhyrchonellacea Gray 1848

Halorella nimassica Krumbeck 1924
Triassic

Timorina Stehli 1961
Cryptonettacea Thomson 1926

Notothyris minuta Oroili 1916
Permian

Tingetta Grabau 1931
Reticutariacea Waagen 1883

Tingetta reticutarioides Grabau 1931
Devonian

Tipispirifer Grant 1976
Spiriferacea King 1946

Tipispirifer opoilatos Grant 1976
Permian

Tiramnia Grunt 1977
Reticulariacea Waagen 1883

Martinia uralica Tschernyschew 1902
Pennsytvanian

Tisimania Hatai 1938
Terebratellacea King 1850

Diestothyris tisimana Nomura&Hatai 1936
Recent

Tissintia Havticek 1979
Enteletacea Waagen 1884

Tissintia convergens Havticek 1970
Ordovician

Titanambonites Cooper 1956
Plectambonitacea Jones 1928

Titanambonites medios Cooper 1956
Ordovician

fitanaria Muir-Wood&Cooper 1960
Prodoctacea Gray 1840

Titanaria costellata Muir-Wood&Cooper 1960
Mississippian

Titanomena Oergstrom 1968
Strophomenacea King 1846

Titanomena grandis Rergstrom 1968
Ordovician

Tityrophoria Waterhouse 1971
Productacea Gray 1840

Tityrophoria nelsoni Waterhoose 1971
Permian

Togaella Severgina 1960
Uncertain

Togzetta grandis Severgina 1960
Ordovician

Tolmatchoffia Fredericks 1933
Productacea Gray 1840

Productus robustus Tolmatchoff 1924
Mississippian

Tomasina Hallgelarke 1892
Lingutacea Menke 1828

lingola criei Davidson 1881
Ordovician

Tomitia Sarytcheva 1963
Productacea Gray 1840

Tomitia khatfini Sarytcheva 1963
Carboni ternos

Tomiproductus Sarytcheva 1963
Productacea Gray 1840

Productus elegantutus Tolmatchoff 1924
Mississippian

Tongzithyris Ching,Liao&Fang 1974
Ente tetacea Waagen 1884

Tongzithyris episotcata Ching,Liao&Fang 1974
Permian

Toquimaella Johnson 1967
Atrypacea Gill 1871

Toquimaella kayi Johnson 1967
Devonian

Toquimia Utrich&Cooper 1936
Ptectambonitacea Jones 1928

Toouimia kirki Ulrich&Cooper 1936
Ordovician

Tornquistia Paecketmann 1930
Chonetacea Bronn 1862

Leptaena potita McCoy 1955
Carboniferous

Torquirhynchia Chitds 1969
Rhynchonettacea Gray 1848

Terebratula inconstans Sowerby 1821
Jurassic

Torynechus Cooper&Grant 1962
Stenoscismatacea Oehlert 1887

Torynechus caelatus Cooper&Grant 1962
Permian

Torynetasma Cooper 1956
Acrotretacea Schuchert 1893

Torynelasma toryniferam Cooper 1956
Ordovician

Torynifer Hall&Clarke 1893
Reticutariacea Waagen 1883

Torynifer criticos Hall&Clarke 1893
Devonian-Mississippian

Toryniferetta Weyer 1967
Reticutariacea Waagen 1883

Kitakamithyris globosa Maxwell 1961
Devonian

Totia Rzonsnitzkaja&Mizens 1977
Atrypacea Gill 1871

Atrypa intermediafera Khodalevich 1951
Devonian

Tokorthis Temple 1968
Orthacea Woodward 185?

Toxorthis proteus Temple 1968
Silurian

Transennatia Waterhouse 1975
Productacea nray 1840

Productus gratiosus Waagen 1884
Permian

Trasgu Martinez 1979
Rhynchoneltacea Gray 1848

Trasqu minor Martinez 1979
Carboniferous

Trautscholdia Ustritsky 1967
Spiriferacea King 1846

Choristites trautscholdi Stuckenberg 1905
Carboniferous

Treioria Neuman&Rates 1978
Orthacea Woodward 1852

Treioria chautioda Neuman&Rates 1978
Ordovician

Trematis Sharpe 1848
Discinacea Gray 1840

Orbicula terminalis Emmons 1142
Ordovician

Trematobolus Matthew 1893
Oboletlacea Walcott&Schuchert 1905

Trematobolus insignis Matthew 1893
Cambrian

Trematorthis Utrich&Cooper 1938
Orthacea Woodward 1852

Trematorthis masoni Utrich&Cooper 1938
ordoviciao

Trematosia Cooper 1976
Kutorginacea Schuchert 1893

Obolus radifer Richter&Richter 1941
Cambrian

Trematosplra Hall 1859
Retziacea Waagen 1883

Spirifer multistriatus Hall 1857
Oevonlan

Tretorhynchia Brunton 1971
Rhynchoporacea Muir-Wood 1955

Terebratula trilatera Koninck 1843
Mississippian

Triadispira Dagys 1961
Reticulariarea Waagen 1883

Triadispira caucasica Pagys 1961
Triassic

Triadithyris Dagys 1963
Terebratulacea Gray 1840

Terebratula gregariaeformis Zugmayer 1882
Triassic

Triathyris Conte 1938
Athyridacea McCoy 1844

Terebratula mucronata Verneuil 1850
Devonian

Trichochonetes Poberts 1976
Chonetacea Pronn 1862

Trichochonetes perpendicularis Roberts 1976
Carboniferous

Trichorhynchia Ouckman 1917
Rhynchonellacea Gray 1848

Rhynchonella deslonochampsii Davidson 1852
Jurassic

Trichothyris Ruckman 1917
Terebratulacea Gray 1843

Dirtyothyris compressa Kitchin 1897
Jurassic

Tricoria Cooper&Grant 1976
Rhynchonellacea Gray 1848

Tricorla hirpex Cooper&Grant 1976
Permian

Tridensilis Xu 1976
Rhynchoneltarea Gray 1848

Tridensilis gibbosa Xu 1976
Devonian

Trifidarcula Ellkott 1959
Terebratettacea King 1850

Terebratella trifida Meyer 1864
Cretaceous

Trifidorosteltum Sartenaer 1961
Rhynchonellacea Gray 1848

Leiorhynchus dunbarense Haynes 1916
Devonian-Mississippian

Trigerla Bayle 1878
Retziacea Waagen 1883

Terebratula que rangeri Verneuil 1850
Devonlan

Trigonetlina Buckman 1907
Terebratellacea King 1850

Terebratulites pectunculus Schlotheim 1820
Jurassic

Trigonirhynchella Dagys 1963
Rhynchonellacea Gray 1848

Trigonirhynchia trigona Dagys 1961
Triassic

Trigonirhynchia Cooper 1942
Rhynchonellacea Gray 1848

Uncinulina fallaciosa Rayle 1878
Devonian

Trigonithyris Muir-Wood 1935
Terebratulacea Gray 1940

Trigonithyris eruduwensis Muir-Wood 1935
Jurassic

Trigonoglossa Dunbar&Condra 1932
Lingulacea Menke 1829

Lingula neorascensis Meek 1872
Carboniferous

Trigonosemus Koenig 1825
Terebratellacea King 1850

Trigonosemus elegans Koenig 1825
Cretaceous

Trigonotreta Koenig 1925
Soiriferacea King 1846

Trigonotreta stokesi Koenig 1825
Tercian

Trigonotrophia Andreeva 1972
Porambonitacea navidson 1853

Idiostrophia paucicostata Cooper 1956
Ordovician

Trigrammaria Wilson 1945
Strophomenacea King 1846

Trigrammaria trigonalis Wilson 1945
Ordovician

Trimerella Rillings 1862
Trimerellacea Davidson&King 1872

Trimerella grandis Billings 1862
Silurian

Trimurellina Mitchell 1977
Ptectambonitacea Jones 1928

Trimurellina superba Mitchelt 1977
Ordovician

Triplecella Wilson 1932
Dayiacea waagen 1883

Triplecella diplicata Wilson 1932
Ordovic ian

Triplesia Hall 1959
Triplesiacea Schuchert 1913

Atrypa extans Emmons 1842
Ordovician-Silurian

Triseptata Oondarev 1965
Porambonitacea Davidson 1853

Triseptata nelidovi Rondarea 1965
Ordovician

Triseptothyris Xu 1978
Zeilleriacea Allan 1940

Triseptothyris yanjinensis Xu 1978
Triassic

Tritoechia Ulrich&Cooper 1936
Clitambonitacea Winchell&Schuchert 1893

Deltatreta typica Ulrich 1932
Ordovician

Trochalocyrtina Wright 1975
Suessiacea Waagen 1983

Trochalocyrtina flemingi Wright 1975
Devonian

Trochifera Ching&Ye 1979
Cancellothyridacea Thomson 1926

Trochifera bangonica Ching&Ye 1979
Cretaceous

Trondorthis Neuman 1974
Orthacea Woodward 1852

Orthambonites bifurcatus Cooper 1956
Ordovician

Tropeothyris Smirnova 1972
Terebratulacea Gray 1840

Tropeothyris kugusemi Smirnova 1972
Cretaceous

Trophisina Cooper&Grant 1976
Rhynchonellacea Gray 1848

Trophisina fenaria Cooper&Grant 1976
Permian

Tropidelasma Cooper&Grant 1969
nerbyiacea Stehli 1954

Tropidelasma culmenatum Cooper&Grant 1969
Permian

Tropidoglossa Rowell 1966
Lingulacea Menke 1828

Linnarssonella modesta Walcott 1908
Cambrian

Tropidoleptus Hall 1857
Enteletacea Waagen 1884

Strophomena carinata Conrad 1839
Devonian

Tropidothyris Cooper 1956
Orthacea Woodward 1852

Tropidothyris pentagona Cooper 1956
Ordovician

Tropiorhynchia Ruckman 1917
Rhynchonellacea Gray 1848

Phynchonella thalia Orbigny 1850
Jurassic

Trottandetta Neuman 1974
Strophomenacea King 1846

Trottandella toki Neuman 1974
Ordovician

Trucizetina Havlicek 1974
Entetetacea Waagen 1814

Trucizetina subrotundata Havticek 1974
Ordoviclan

Truncatosia lmbrie 1959
Strophatosiacea Schuchert 1913

Truncalosia gibbosa lmbrie 1959
Devonian

Tschatkatia Nikiforova 1964
Athyridacea McCoy 1844

Tschatkatia unica Nikiforova 1964
Silurian

Tschernyschewia Stoyanow 1910
Autostegacea Muir-Wood&Cooper 1960

Tschernyschewia typica Stoyanow 1910
Permian

Tubarla Muir-Wood&Cooper 1960
Productacea Gray 1840

Prnductus genuinus kutorga 1844
Permian

Tubegatanetta Prosorovskaja 1968
Zeitterlacea Altan 1940

Tubegatanella repmanae Prosorovskaja 1968
Jurassic

Tubersulcutus Waterhouse 1971
Productacea Gray 1840

Tubersulculus maximus Waterhouse 1971
Permian

Tubithyris Ruckman 1917
Terebratutacea Gray 1840

Terebratula wrighti Davidson 1855
Jurassic

Tubulostrophia Ravlicek 1967
Strophomenacea King 1846

Leptaena fugax Harrande 1843
Devonian

Tudiaophomena Xian 1978
Strophomenacea King 1846

Tudiaophomena pticata Xian 1978
Silurian

Tufoteptina Havlicek 1961
Plectambonitacea Jones 1928

Tufoleptina tufogena Havlicek 1961
Silurian

Tutathyris Grunt 1976
Athyridacea McCoy 1844

Athyris vogdil Peetz 1893
Carboniferous

Tulcumbella Campbett&Engel 1963
Chonetacea Rrnnn 1862

Tulcumbella microstrlata Campbett&Enget 1963
Mississippian

Tutipina Smirnova 1962
Terehratellacea King 1850

Zeilleria koutaisensis Loriot 1896
Cretaceous

Tutungospirifer Ching&Sun 1976
Spiriferinacea Davidson 1884

Spiriferina stracheyi Salter 1865
Triassic

Tumarinia Solomina&Grigorjewa 1973
Spiriferacea King 1846

Tumarinla orientalls Grigorjewa 1973
Permian

Tunantes Cooper&Muir-Wood 1951
Lingulacea Menke 1828

Tunaria cochambina Hoek 1912
Ordovician

Tungussotoechla Lopushinskaja 1976
Rhynchonetlacea Gray 1848

Stegerhynchus tungussensis Lopushinskala 1972
Silurian

Tunisiglossa mansa et al 1977
lingulacea Menke 1828

Tunisigtossa tripotitanea Massa et al 1977
Ordovician

Turkmenithyris Prosorovskaja 1962
Terebratutacea Gray 1849

Turkmenithyris krinholzi Prosorovskaja 1962
Jurassic

Turricutum Gregorio 1930
Uncertain

Turriculum imperans Greaorio 1930
Permian

Tuvaella Tschernyschew 1937
Orthacea Woodward 1957

Tuvaella rackovskii Tschernyschew 1937
Silurian

Twenhofetia Boucot&Smith 1978
Pentameracea McCoy 1844

Stricktandia exploitensis Shrock&Twenhofe1 1939
Silurian

Tyersella Phillp 1962
nalmanettacea Schuchert 1913

Tyersetla typica Phihp 1962
Siturian-nevonian

Tyloptecta Muir-Wood&Cooper 1963
Productacea Gray 1849

Productus scabriculus Frech 1911
Permian

Tytospiriferina Xu 1978
Suessiacea Waagen 1883

Tylosplriferina typica Xu 1978
Triassic

Tytothyris North 1920
Spiriferacea King 1846

Cyrtia laminosa McCoy 1844
Devonian-mississippian

Tyrganietta Kutkov 1970
Athyridacea McCoy 1844

Tyrganietta repentina Kutkov 1970
Devonian

Tyronetta Mitchett 1977
Entetetacea Waagen 1884

Tyrgnelta killeyensis Mitchell 1977
Ordovic/an

Tyrothyris Opik 1953
Atrypacea Gill 1871

Tyrothyris tyro Opik 1953
Silurian

Uchtetta Ljaschenko 1973
Rhynchonettacea Gray 1848

Hypothyridina praesemitukiana Ljaschenko 1958
Devonlan

Uchtospirifer Ljaschenko 1957
Spiriferacea King 1846

Uchtospirifer nalivkini Ljaschenko 1957
Devonian

Ujandinetta Raranov 1977
Phynchonellacea Gray 1848

Ujandinetta remissiformis Baranov 1977
Devonian

Ukoa Opik 1932
Ptectambonitacea Jones 1928

Ukoa ornata Opik 1932
Ordovician

Utbospirifer Gretchischnikova 1965
Spiriferacea King 1846

Utbospirifer altaicus Gretchischniknva 1965
Mississippian

Utdziathyris Grunt 1977
Athyridacea McCoy 1844

Uldziathyris tikhonovi Grunt 1977
Mississippian

Umboanctus Waterhouse 1971
Productacea Gray 1843

Umboanctus spinosus Waterhouse 1971
Pennsytvanian

Uncinetla Waagen 1883
Athyrisinacea Grabau 1931

Uncinetta indica Waagen 1883
Permian

Uncinutus Bayte 1878
ithynchonellacea Gray 1848

Hemithyris subwilsoni Orbigny 1850
Devonian

Uncinunettina Grabau 1932
Rhynchonetlacea Gray 1848

Uncinutus theobaldi Waagen 1884
Permian

Uncisteges Jing&Hu 1978
Strophatosiacea Schuchert 1913

Marginifera crenutata Ting 1966
Permian

Uncites Defrance 1825
Dayiacea Haagen 1883

Terebratutites gryphus Schtotheim 1823
Devonian

Undaria Muir-Wood&Cooper 1960
Productacea Gray 1849

Undaria manxensis Muir-Wood&Cooper 1960
Mississippian

Undatrypa Copoer 1978
Atrypacea Gill 1871

Terebratuta munieri Gruenewaldt 1854
Devonian

Undellaria Cooper&Grant 1975
Productacea Gray 1840

Undellaria magnifica Cooper&Grant 1975
Permian

Undiferina Cooper 1956
Acrotretacea Schuchert 1893

Undiferina rugosa Cooper 1956
Ordovician

Undispirifer Havticek 1957
Reticutariacea waagen 1883

Spirifer undiferus Roemer 1844
Devonian

Undispiriferoides Xian 1978
Reticulariacea Waagen 1883

Undispiriferoides huishuiensis Xian 1978
Devonian

Undithyretta qavticek 1971
Atrypacea Gill 1871

Undithyretta undosa Havlicek 1971
Ordovician

Undutetta Cooper&Grant 1969
Chonetacea Pronn 1862

Undutella undutata Cooper&Grant 1969
Permian

Unqula Pander 1830
Lingulacea Menke 1828

Ungida convexa Pander 1833
Cambrian-Ordovician

Unispirifer Campbetl 1957
Spiriferacea King 1846

Spirifer striatoconvotutus Benson&Dun 1920
Mississippian

Uraletta Makridin 1960
Terebratutacea Gray 1840

Terebratula strogonofii Orbicjny 1845
Juralsic

Uratina Schuchert&LeVene 1929
lyttoniacea Waagen 1893

Uralia tastubaensis Licharew 1925
Pennsylvanian-Permian

Uratorhynchia nagys 1968
Rhynchonettacea Gray 1848

Terebratula striatissima Eichwatd 1865
Jurassic

Uratospira Mizens 1977
Atrypacea Gill 1871

Uratospira tenulcostata Mizens 1977
Decorian

Uralospirifer Havticek 1959
Spiriferacea King 1846

Spirifer mansy Khodatevich 1951
Devonian

Uratotoechia Sapetnikov 1963
Phynchonettacea Gray 1848

Uratotoechia vaqranensis Sapetnikov 1963
Silurian

Urbanirhynchia Katz 1974
Rhynchonettacea Gray 1848

Urbanirhynchia urbani Katz 1974
Cretaceous

Urbimena Havticek 1976
Plectambonitacea Jones 1928

Urbimena mareki Havticek 1976
Ordovician

Uretta Rzonsnitzkaja 1960
Spiriferacea King 1846

Uretta asiatica Rzonsnitzkaja 1960
Devenian

Urushtenia Licharew 1935
Strophatosiacea Schuchert 1913

Productus pseudomedusa Tschernyschew 1902
Permian

Urushtenoidea Jing&Hu 1978
Strophatosiacea Schuchert 1913

Urushtenia chaoi Ching 1963
Permian

Ushkolia Martynova&Sverbilova 1969
Cyrtiacea rredericks 1924

Ushkolia titvinovitshae Martynova&Sverbilova 1969
Devonian

Ussuricamara Koczyrkevicz 1969
Stenoscismatacea Oehtert 1887

Ussuricamara majchensis Koczyrkevicz 1969
Permian

Ussurirhynchia Koczyrkevicz 1976
oasitiotacea Cooper 1959

Ussurirhynchia ticharewi Koczyrkevicz 1976
Permian

Vaga Sapetnikov et at 1973
Pentameracea McCoy 1844

Vaga sinuatis Sapetnikov et al 1973
Ordovician

Vagranetta Sapetnikov 1960
Pentameracea McCoy 1844

Subriana diversopticata Sapetnikov 1960
Si Linar

Vagrania Atekseeva 1959
Atrypacea Gill 1871

Atrypa kotymensis Nativkin 1936
Devonian

Vatcourea Paymond 1911
Orthacea Woodward 1852

ptaesiomys strophomenoides Paymond 1905
Ordovician

Valdaria Bassett&Cocks 1974
Davidsoniacea King 1850

Valdaria testudo Bassett&Cocks 1974
Silurian

Valdiviathyris Helmcke 1940
Craniacea Menke 1828

Valdiviathyris quenstedti Helmcke 1940
Recent

Valtomyonia Johnson 1966
Enteletacea Waagen 1884

Skenidium devonicum Walcott 1884
Devonian

Vandercammenina Boucot 1975
Suessiacea Waagen 1883

Spirifer triqeri Verneuil 1850
Devonian

Vandergrachtella Crickmay 1953
Spiriferacea King 1846

Vanderqrachtella arcuum Crickmay 1953
Devonian

Vandobiella Pojariskaja 1966
Terebratellacea King 1850

Vandobiella perpusilla Pojariskaja 1966
Jurassic

Vaniella Kvakhadze 1974
Terebratellacea King 1850

Vaniella sinuata Kvakhadze 1974
Cretaceous

Variatrypa Copper 1966
Atrypacea Gill 1871

Desnuamatia ajugata Copper 1965
Devonian

Vectella Owen 1965
Zeilleriacea Allan 1940

Waldheimia celtica Morris 1854
Cretaceous

Vediproductus Sarytcheva 1965
Productacea Gray 1840

Vediproductus vediensis Sarytcheva 1965
Permian

Veghirhynchia nagys 1974
Basi liolacea Cooper 1959

Rhynchonella arpadica Pittner 1902
Triassic

Veliseptum Popov 1976
Acrotretacea Schuchert 1893

Veliseptum fragile Popov 1976
Ordovician

licttam0 opik 1930
Clitambonitacea Winchell&Schuchert 1893

Orthis verneuili Eichwald 1841
Ordovician

Velostrophia Havlicek 1965
Strophomenacea King 1846

Strophomena insolita Barrande 1879
Devonian

Venezuetia Weisbord 1926
Uncertain

Vitulina venezuelensis Weisbord 1926
Devonian

Verchojania Abramov 1970
Productacea Gray 1840

Jakutoproductus cheraskowi Kaschirzev 1959
Carboniferous

Verkhotomia Sokolskaja 1963
Spiriferacea King 1846

Verkhotomia plenoides Sokolskaja 1963
Carboniferous

Vermiculothecidea Elliott 1953
Thecideacea Gray 1840

Terebratulites vermicularis Schlotheim 1813
Cretaceous

Verneuilia Hall&Clarke 1893
Reticulariacea Waagen 1883

Spirifer cheiroptyx Archiac&Verneuil 1842
Devonian

Vex Hoover 1979
Terebratulacea Gray 1840

Terebratula semisimplex White 1879
Triassic

Viallithyris Voros 1978
Terebratulacea Gray 1840

Terebratula gozzanensis Parona 1880
Jurassic

Viarhynchia Calzada 1974
Rhynchonellacea Gray 1848

Rhynchonella cerdanyolae Pataller 1947
Cretaceous

Victorithyris Allan 1940
Terebratellacea King 1850

Victorithyris peterboroughensis Allan 1940
Tertiary

Viligella nagys 1965
Spiriferinacea Davidson 1884

Mentzelia rotunda Tuchkov 1956
Triassic

Viligothyris Dagys 1968
Loboidothyridacea Makridin 1964

Viligothyris orientalis Dagys 1968
Jrassic

Villicundella Levy&Nullo 1974
Enteletacea Waagen 1834

Vitlicundella mozetici Levy&Nullo 1974
Ordovician

Vinca Gregorio 1930
Lyttoniacea Waagen 1883

Lyttonia asymmetrica Gregorio 1930
Permian

Virbium Gregorio 1930
Uncertain

Virbium torbecolinum Gregorio 1930
Permian

Virgiana Twenhofel 1914
Pentameracea McCoy 1844

Pentamerus oarrandei Billings 1857
Silurian

Virgianetta Nikiforova et al 1971
Pentameracea mccoy 1844

Virgianella vaigatschensis Nikiforova 1971
Si Lunas

Virgtniata Amsden 1968
Strophomenacea King 1846

Camarotoechia arkansana Thomas 1926
Silurino

Virgoria Neuman 1977
Enteletacea Waagen 1884

Virgoria virgensis Neuman 1977
Orlovician

Viruella Roomusoks 1959
Ptectambonitacea Jones 1928

Sowerbyella litiifera Opik 1930
Ordowician

Visbyella Walmsley et al 1968
Entetetacea Waagen 1884

Orthis visbyensis Lindstrom 1861
Silurian

Vitiliproductus Ching&Liao 1974
Productacea Gray 1840

Productos groeberi Krenkel 1913
Carboniferous

Vltavothyris Havlicek 1956
Stringocephalacea King 1850

Vltavothyris svobodai Havlicek 1956
Pevonian

Voiseyetla Poberts 1964
Spiriferacea King 1846

Strophopleura anterosa Camphett 1957
Mississippian

Volborthia Moller 1870
Paterinacea Schuchert 1893

Acrotreta recurva Kutorga 1848
Ordovician

volirhynchia Dagys 1974
Rhynchonellacea Gray 1848

Phynchonella volitans Bittner 1890
Triassic

Vosmiverstum Breivel&Breivel 1970
Pentameracea McCoy 1844

Conchidium triguetrum Sapetnikov 1961
Silurian

Waagenites Paecketmann 1930
Chonetacea Bronn 1862

Claretes grandicosta Waagen 1884
Permian

Waagenoconcha Chao 1927
Productacea Gray 1840

Productus humbotdti Orbigny 1842
Pennsylvanian-Permian

Waconetta Owen 1970
Terebratellacea King 1850

Terebratuta wacoensis Poemer 1852
Cretaceous

Waiparia Thomson 1920
Terebratellacea King 1850

Pachymagas abnormis Thomson 1917
Tertiary

wairakiella Waterhouse 1967
Rhynchonellacea Gray 1848

Wairakietla rostrata Waterhouse 1967
Permian

Waisiuthyrina Beets 1943
Terebratulacea Gray 1840

Waisiuthyrina margineplicata Beets 1943
Tertiary

Watcottina Cobbold 1921
Paterinacea Schuchert 1893

walcottina lapworthi Cobbold 1921
Cambrian

Watkerithyris Cox&Middlemiss 1978
Terebratulacea Gray 1843

Walkerithyris mendax Cox&Middlemiss 1978
Cretaceous

Waltonia Davidsnn 1850
Terebratellacea King 1850

Waltonia valenciennes Davidson 1850
Tertiary-Recent

Wardakia Termier et al 1974
Davidsoniacea King 1850

Derbyia grandis Waagen 1834
Pennsylvanian-Permian

Warrenella Crickmay 1953
Reticulariacea Waagen 1883

Warrenella eclectea Crickmay 1953
Devonian

Warsawia Carter 1974
Spiriferacea King 1846

Spirifer lateralis Hall 1858
Mississippian

Wattonithyris Muir-Wood 1936
Terebratulacea Gray 1840

Wattonithyris wattonensis Muir-Wood 1936
Jurassic

Wattsella Bancroft 1975
Enteletacea Waagen 1884

Wattsella wattsi Bancroft 1928
Ordovician-Silurian

Weberithyris Smirnova 1969
Terebratulacea Gray 1840

Rectithyris moisseevi Weber 1949
Cretaceous

weiningia Ching&Liao 1974
Davidsoniacea King 1850

Weiningia transversa Ching&Liao 1974
Carboniferous

Weldonithyris Muir-Wood 1952
Terebratulacea Gray 1840

Weldonithyris weldonensis Muir-Wood 1952
Jurassic

Wellerella Dunbar&Condra 1932
Rhynchonellacea Gray 1848

Wellerella tetrahedra Dunbar&Condra 1932
Pennsylvanian-Permian

Werneckeella Lenz 1971
Rhynchonellacea Gray 1848

Werneckeella hartensis Lenz 1971
Devonian

Werriea Campbell 1957
havidsoniacea King 1850

Werriea australis Camobell 1957
Permian

Westonia Walcott 1901
Lingulacea Menke 1828

Lingula aurora Hall 1861
Cambrian-Ordovician

Westralicrania Cockbain 1967
Craniacea Menke 1828

Westralicrania altari Cockbain 1967
Tertiary

Whidbornella leed 1943
Productacea Gray 1840

Leptaena capera te Sowerby 1840
Devonian

Whitfieldella Hall&Clarke 1893
Athyridacea McCoy 1844

Atrypa nitida Hall 1843
Silurian-Devonian

Whitfieldia Davidson 1882
Athyridacea McCoy 1844

Atrypa tumida Dalman 1828
Silurian-Devonian

Whitspakia Stehli 1964
Dielasmatacea Schuchert 1913

Dielasma biplex Waagen 1882
Permian

Whittardia Williams 1974
Orthacea Woodward 1852

Whittardia paradoxica Williams 1974
Ordovician

Wilberrya Yancey 1978
Cyrtiacea Fredericks 1924

Wilberrya fregilis Yancey 1978
Permian

Wilsonietla Khalfin 1939
Rhynchonellacea Gray 1848

Wilsoniella prima Khalfin 1939
Devonian

Wimanella Walcott 1908
Orthacea Woodward 1852

Wimanella simplex Walcott 1908
Cambrian

Winterfeldia Spriestersbach 1942
Dayiacea Waagen 1883

Uncites paulinae Winterfeld 1895
Devonian

Wittenburgella Dagys 1959
Dielasmatacea Schuchert 1913

Wittenburgella minuta Dagys 1959
Triassic

Woroblevetta Dagys 1959
Zeitteriacea Allan 1940

Worobievelta caucasica Dagys 1959
Triassic

Wyatkina Fredericks 1931
Strophatosiacea Schuchert 1913

Autosteges gigas Netschaew 1894
Permian

Wyetta Khodalevich 1919
Pentameracea McCoy 1844

Eichwaldia uratica Tschernyschew 1893
Silurian

Wyndhamia nooker 1930
Strophatosiacea Schuchert 1913

Wyndhamia datwoodensis Hooker 1930
Permian

Wynnia Walcott 1912
Uncertain

Orthis warthi Waagen 1891
Cambrian

Wysogorskiella Hints 1975
Enteletacea Waagen 1884

Wysogorskiella titviensis Hints 1975
Ordovician

Xana Garcia-Atcalde 1972
Stringocephatacea King 1850

Xana bubo Garcia-Alcalde 1972
Devonian

Xenambonites Cooper 1956
Ptectambonitacea Jones 1928

Xenambonites undosus Cooper 1956
Ordovician

xenetasma Utrich&Cooper 1936
Porambonitacea havidson 1853

xenetasma syntrophioides Utrich&Cooper 1936
Orda

Xenetasmetta Rozman 1964
Porambonitacea Davidson 1853

Xenetasmetta gracimsa Roznan 1964
Ordovician

Xenizostrophia Su 1976
Davidsoniacea King 1850

Xenizostrophia spinosa Su 1976
Devonian

Xenomartinia Havticek 1953
Reti cutariacea Waagen 1883

Xenomartinia monosepta Havticek 1953
Devonian

xenorthis Ulrich&Cooper 1936
Oillingsellacea Schuchert 1893

Strophomena stosei Hasster 1919
Cambrian-Ordovician

Xenosaria Cooper&Grant 1976
Athyridacea McCoy 1844

Xenosaria exotica Cooper&Grant 1976
ferian

Xenospirifer Hou&Xian 1975
Spiriferacea King 1846

Spirifer fongi Grabau 1931
Devorar

Xenosteges Muir-Wood&Cooper 196]
Autostegacea Muir-Wood&Cooper 1960

xenosteges adherens Muir-Wood&Cooper 1960
Permian

Xenostrophla Wang 1974
Strophomenacea King 1846

Shateria yukiangensis Wang 1956
Devonian

xenothyris Ching,Rong&Sun 1976
Terebratettacea King 1850

Xenothyris tuitaensis Ching,Rong&Sun 1976
Cretaceous

xerospirifer Havticek 1978
Spiriferacea King 1846

Xerospirifer excetsus Havlicek 1978
Devonian

Xerxespirifer Cocks 1979
Spiriferacea King 1846

Xerxespirifer iranicus Cocks 1979
Silurian

Xestosia Cooper&Grant 1975
Productacea Gray 1840

Xestosia obsolescens Cooper&Grant 1975
Permian

Xestotrema Cooper&Grant 1969
Spiriferinacea Davidson 1884

Spirifera putchra Meek 1860
Permian

Xiangzhounia Ni&Yang 1977
Stringocephatacea King 1850

Xiangzhounia typica Ni&Yang 1977
Devonian

Xinanorthis Xu,Rong&Liu 1974
Orthacea Woodward 1852

Xinanorthis striata Xu,Rong&Liu 1974
Ordovician

Xinanospirifer Rong,Xu&Yang 1974
CYrtiacea Fredericks 1924

Xinanosoirifer ftabettun Rong,Xu&Yang 1974
Siturian

Xinshaoella Zhao 1977
Rhynchonellacea Gray 1848

Xinshaoella huaqiaoensis Zhao 1977
Devonlan

Xizangostrophia Ronq 1976
Porambonitacea navidson 1853

Xizangostrophia sinensis Ronq 1976
Ordoviclan

Xystostrophia Havlicek 1965
Orthotetacea Waagen 1884

Terebratulites umbraculum Schlotheim 1820
Devonian

Yabeithyris Hatai 1948
Terebratellacea King 1850

Yabeithyris notoensis Hatai 1948
Tertiary

Yagonia Roberts 1976
Chonetacea qronn 1862

Yagonia gibberensis Roberts 1976
Pennsylvanian

Yakovtevia Fredericks 1925
Productacea Gray 1840

Chonetes kaluzinensis Fredericks 1925
Permian

Yakutijaella Raranov 1977
Rhynchonellacea Gray 1848

Yakutijaella dubatolovi Haranov 1977
Devonian

Yanbianella Tong 1978
Rhynchonellacea Gray 1848

Yanbianella dorsiconvexa Tong 1978
Carboniferous

Yangtzeella Kolarova 1925
Porambonitacea Davidsan 1853

Triplecia pot ai Martelli 1901
Ordovician

Yanguania Vano 1977
Productacea Gray 1849

Spinulicosta dushanensis Yang 1964
Mississippian

Yanishewskielta Licharew 1957
Rhynchoneltacea Gray 1848

Goniophoria angulata Janischewsky 1910
Mississippian

Yanospira Dagys 1977
Spiriferinacea Davidson 1884

Yanospira bychkovi nagys 1977
Trlassic

Yatsengina Semichatova 1936
Spiriferacea King 1846

Yatsengina plana Semichatova 1936
Carboniferous

Yeosinella Reed 1933
Uncertain

Yeosinella consignata Reed 1933
Ordovician

Ygera Havlicek 1961
Ptectambonitacea Jones 1928

Ygera rgerens Havlicek 1961
Silunan

Ygerodiscus Havlicek 1967
Ptectambonitacea Jones 1928

Leptaena transversalis Salten 1848
Ordovician

Yidunella Ching,Sun&Ye 1979
Rhynchonellacea Gray 1848

Yidunella magna Ching,Sun&Ye 1979
Triassic

Yingtangelta Bai&Ying 1978
Stringocephalacea King 1850

Rhipidothyris sulcatilis Hou 1963
Devonian

Yingwuspirifer Rong,Xu&Yang 1974
Uncertain

Yingwuspirifer orientalis Rong,Xu&Yang 1974
Silurian

Yochelsonia Stehli 1961
Dielasmatacea Schuchert 1913

Yochelsonia thomasi Stehli 1961
Permian

Yorkia Walcott 1897
Kutorginacea Schuchert 1893

Yorkia wanneri Walcott 1897
Cambrian

Ypsilorhynchus Sartenaer 1970
Rhynchonellacea Gray 1848

Leiorhynchus manetoe McLaren 1962
Devonian

Yretospirifer Gatinaud 1949
Spiriferacea King 1846

Spirifer pellizzarii Grabau 1931
Devonian

Yuezhuella Ching&Ye 1979
Terebratellacea King 1850

Yuezhuella minor Ching&Ye 1979
Cretaceous

Yunnanella Grabau 1923
Rhynchonellacea Gray 1848

Rhynchonella hanburii Davidson 1853
Devonian

Zaissania Sokolskaja 1968
Spiriferinacea Davidson 1884

Zaissania zaissanica Besnossova et al 1968
Carboniferous

Zanclorhyncha Xu 1970
Phynchonellacea Gray 1848

Zanclorhyncha gentitis Xu 1979
Orlovician

Zdimir Rarrande 1881
Pentaneracea McCoy 1844

Zdimir sotus Barrande 1881
Devonian

Zdimirelta Tcherkesova 1973
Pentameracea McCoy 144

Zdimlrella kuzmini Tcherkesova 1973
Devonian

Zeitterla Rayle 1878
Zeillerlacea Allan 1940

Terebratula cornuta Sowerby 1824
Jurassic

Zeitterina Kyansep 1959
Zeilleriacea Atan 1940

Zeitleria belbekensis Moisseiev 1934
Jurassic

Zejsznerla Siemiradzki 1922
Atrypacea Gill 1871

Orthisina davyi Barrois 1886
Devonian

Zettania Moore 1855
Terebratellacea King 1850

Zellania davidsoni Moore 1855
Jurassic

Zeravshanotoechia Rzonsnitzkaja 1977
Phynchoneltacea Gray 1848

Zeravshanotoechia zeravshanica Rzonsnitzkaja 1977
Devonian

Zeuschnerla Smirnova 1975
Terebrateltacea King 1850

Zeuschneria imitabilis Smirnova 1975
Jurassic

Zhidothyrls Ching,Sun&Ye 1979
Terebratettacea King 1850

Zhidothyris carinata Ching,Sun&Ye 1979
Triassic

Zhanghuacoetia Chen 1978
Cyrtiacea Fredericks 1924

Zhonghuacoetia bispina Chen 1978
Devonian

Zia Sutherland&Harlow 1973
Productacea Gray 1840

Zia novamexicana Sutherland&Harlow 1973
Pennsylvanian

Ziganella Nativkin 1960
Spiriferinacea Davidsan 1884

Ziganella ziganensis Nalivkin 1960
Mississippian

Zitimia Nalivkin 1947
Rhynchoneltacea Gray 1848

Rhynchonetla polonica Gurich 1896
Devonian

Zittelina Pollier 1919
Terebratettacea King 1850

Terebratuta orbis Quenstedt 1858
Jurassic

Ztich9PYramis Havlicek 1975
Ente letacea Waagen 1884

Zlichopyramis tibicen Havlicek 1975
Ordovician

Ztichorhynchus Havlicek 1963
Rhynhonellacea Gray 1848

Zlichorhynchus hiatus Havlicek 1963
Devonian

Zophostrophia Veevers 1959
Strophomenacea King 1846

Zophostrophia ungamica Veevers 1959
Devonian

Zugmayerella Dagys 1963
Suessiacea Waagen 1883

Spiriferina koessenensis Zugmayer 1882
Triassic

Zugmayeria Waagen 1882
Dielasmatacea Schuchert 1913

Terebratuta rhaetica Zugmayer 1880
Triassic

Zygatrypa Copper 1977
Atrypacea Gill 1871

Zygospira paupera Biltings 1866
Silurian

Zygospira Hall 1862
Atrypacea Gill 1871

Atrypa modesta Say 1847
Ordovician

Zygosoiraella Nikiforova 1961
Atrypacea Gill 1871

Terebratula dubolsi Verneuil 1845
Ordovician-Siturian

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1971. Faksethyris nielsem n.g. et n.sp. (Terebratulacea) from the Middle Danian of Denmark. Geological Society of Denmark Bulletin, 20:385–389, 6 figures, 9 plates.

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1958. A New Species and Genus of Kraussinidae (Brachiopoda) with a Note on Feeding. Zoological Society of London, Proceedings, 131(4):559–581, 14 figures, 1 plate.

1960. A New Species and Genus of Brachiopoda from the Western Approaches and the Growth Stages of the Lophophore. Marine Biological Association of the United Kingdom, Journal, 39:71–89, 14 figures, 1 plate.

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1971. Carboniferous and Permian Stratigraphy and Paleontology, Northern Yukon Territory, Canada. Bulletin of Canadian Petroleum Geology, 19(1):29–250, 19 figures, 27 plates.

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1928a. The Harknessellinae. Manchester Literary and Philosophical Society, Memoirs and Proceedings, 72:173–196, 2 plates.

1928b. On the Notational Representation of the Rib-System in Orthacea. Manchester Literary and Philosophical Society, Memoirs and Proceedings, 72:53–90, 3 plates.

1929. Some New Genera and Species of Strophomenacea from the Upper Ordovician of Shropshire. Manchester Literary and Philosophical Society, Memoirs and Proceedings, 73(4):33–65, 2 plates.

1933. Correlation Tables of the Stages Costonian-Onnian in England and Wales. 4 pages, 3 tables. Printed and published by the author at Blakeney, England.

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1949b. The Strophomena antiquata Group of Fossil Brachiopods. In Quarry Managers’ Journal, pages 11–16, 1 plate.

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1970. Biostratigraphy of the Carboniferous and Lower Permian of Northern Timan. Trudy Vsesoyuznogo Neftianogo Nauchno-Issledovatel’skogo Geologorazvedochnogo Instituta (VNIGRI), 283:1–228, 21 plates. [In Russian.]

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1893. Revision of the Families of Loop-Bearing Brachiopoda. Connecticut Academy of Arts and Sciences, Transactions, 9:376–391, 2 plates.

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1928. Terebratulacea of the Devonian of Northern Iowa. Iowa University, Studies in Natural History, new series, 12(8):29 pages, 15 figures, 4 plates.

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1929. Horton-Windsor District, Nova Scotia. Canada, Geological Survey, Department of Mines and Resources, Memoir, 155: 268 pages, 36 plates.

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1938. Prototreta, a New Genus of Brachiopod from the Middle Cambrian of Montana. Michigan Academy of Science, Arts and Letters, Papers, 23:403–408, 1 plate.

1941. Cambrian Brachiopoda from Montana. Journal of Paleontology, 15(3):193–255, plates 28–37.

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1963. Eccentricosta, a New Upper Silurian Brachiopod Genus. Journal of Paleontology, 37(1):254–256, 1 figure.

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1861b. Note on a New Genus of Paleozoic Brachiopoda. Canadian Journal of Industry, Science, and Art, 6:148.

1862. New Species of Fossils from Different Parts of the Lower, Middle and Upper Silurian Rocks of Canada. In Geological Survey of Canada, Paleozoic Fossils, 1:96–185.

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1888b. Ueber das Aufreten von Terebrateln aus der Subfamilie der Centronellinen in der Alpinen Trias. Geologische Reichsanstalt, Verhandlungen, 5: 125–128.

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1896. Eine Neue Form der Triadischen Terebratulidengruppe der Neocentronellinen Oder Juvavellinen. Geologische Reichsanstalt, Verhandlungen, 4:131–132.

1900. Brachiopoden aus der Trias des Bakonyer Waldes. In Result ate der Wissenschaftlichen Erforschung des Balatonsees, Palaeontologischer Anhang, 2(1): 1–58.

1903. Brachiopoden und Lamellibranchiaten aus der Trias von Bosnien, Dalmatien und Venetian. Geologische Reichsanstalt, Jahrbuch, 52(3,4):495–843.

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1926. The Internal Structure of Some of the Pentameridae of New South Wales. Royal Society of New South Wales, Journal, 60:130–145, plates 5–8.

1930. Preliminary Note on New Subgenera of Productus and Strophalosia from the Branxton District. Royal Society of New South Wales, Journal, 63:24–32, 3 plates.

1931. A Review of Some of the Permo-Carboniferous Productidae of New South Wales, with a Tentative Reclassification, Royal Society of New South Wales, Journal, 64:65–77, 3 plates.

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1900. Ueber die Mittelliasische Brachiopodenfauna von Südtyrol. Palaeontographica, 46:177–178, plate 17, figures 1, 2.

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1849. Mémoire sur un nouveau genre de brachiopode formant le passage des formes articulées celles qui ne sont pas. Annales des Sciences Naturelles, series 3, 12:84–93, 1 plate.

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1957. Revision of Some Silurian and Early Devonian Spiriferid Genera and Erection of Kozlowskiellinae, New Subfamily. Senckenbergiana Lethaea, 38(5–6):311–334, 3 plates.

1958. Kozlowskiellina, New Name for Kozlowskiella Boucot, 1957. Journal of Paleontology, 32(5):1031.

1959a. Early Devonian Ambocoeliinae (Brachiopoda). Journal of Paleontology, 33(1):16–24, plates 1, 2.

1959b. A New Family and Genus of Silurian Orthotetacid Brachiopods. Journal of Paleontology, 33(1):25–28, figures 1, 2, plate 3.

1959c. Brachiopods of the Lower Devonian Rocks at Highland Mills, New York. Journal of Paleontology, 33(5):727–769, 14 plates.

1960a. A New Lower Devonian Stropheodontid Brachiopod. Journal of Paleontology, 34(3):483–485, 1 plate.

1960b. A Late Silurian Fauna from the Sutherland River Formation, Devon Island, Canadian Arctic Archipelago. Canada, Geological Survey Bulletin, 65:1–51, plates 1–10.

1963. The Eospiriferidae. Palaeontology, 5(4):682–711, plates 97–104.

1964a. Callipentamerus, a New Genus of Brachiopoda from the Silurian of Iowa. Journal of Paleontology, 38(5): 887–888, 2 plates.

1964b. A New Genus of Silurian Atrypacean Brachiopod. In Reconnaissance Bedrock Geology of the Presque Isle Quadrangle, Maine. Quadrangle Mapping Series, 2(Appendix):104 112, 2 plates. Augusta, Maine: Maine Geological Survey, Department of Economic Development.

1970. Glypterina, a New Genus, the Ordovician Ptychopleurellid. Journal of Paleontology, 44(5):984–985.

1971. Aenigmastrophia, New Genus, a Difficult Silurian Brachiopod. In J. T. Dutro, Jr., editor, Paleozoic Perspectives: A Paleontological Tribute to G. Arthur Cooper. Smithsonian Contributions to Paleobiology, 3:155–158.

1973. Early Paleozoic Brachiopods of the Moose River Synclinorium, Maine. U.S. Geological Survey Professional Paper, 784:1–81, 23 plates.

1975. Evolution and Extinction Rate Controls. 426 pages, 44 figures, 4 plates. New York: Elsevier.

Boucot, A. J., and T. W. Amsden

1958. New Genera of Brachiopods. Oklahoma Geological Survey Bulletin, 78(4):159–170, figures 40–42, plate 14.

1964. Chonostrophiella, a New Genus of Chonostrophid Brachiopod. Journal of Paleontology, 38(5):881–884, 1 plate.

Boucot, A. J., K. E. Caster, D. Ives, and J. A. Talent

1963. Relationships of a New Lower Devonian Terebratuloid (Brachiopoda) from Antarctica. Bulletins of American Paleontology, 46(207):77–151, plates 16–41.

Boucot, A. J., and K. K. Chiang

1974. Two New Lower Silurian Virgianid (Family Pentameridae) from the Nonda Formation, Northern British Columbia. Journal of Paleontology, 48(1):63–73.

Boucot, A. J., and G. M. Ehlers

1963. Two New Genera of Stricklandid Brachiopods. University of Michigan, Museum of Paleontology, Contributions, 18:47–66, 5 plates.

Boucot, A. J., and K. L. Gauri

1966. Quadrikentron (Brachiopoda) a New Subgenus of Strophochonetes. Journal of Paleontology, 40(5):1023–1026, 1 plate.

Boucot, A. J., K. L. Gauri, and J. G. Johnson

1966. New Subfamily Proschizophoriinae of Dalmanellid Brachiopods. Palaeontologische Zeitschrift, 40(3–4):155–172, 1 figure, 4 plates.

Boucot, A. J. and E. D. Gill

1956. Australocoelia, a New Lower Devonian Brachiopod from South Africa, South America, and Australia. Journal of Paleontology, 30(5):1173–1178, plate 126.

Boucot, A. J., and C. W. Harper

1968. Silurian to Lower Middle Devonian Chonetacea. Journal of Paleontology, 42(1): 143–176, 4 plates.

Boucot, A. J., and J. G. Johnson

1966a. Ehlersella, a New Silurian Stricklandiid Brachiopod Genus. Journal of Paleontology, 40(3):569–572.

1966b. Lissocoelina and its Homeomorph Plicocoelina n. gen. (Silurian, Pentameracea). Journal of Paleontology, 40(5):1037–1042, 4 plates.

1967a. Silurian and Upper Ordovician Atrypids of the Genera Plectatrypa and Spirigerina, Norsk Geologisk Tidsskrift, 47(1):79–101.

1967b. Allanetes, a New Lower Devonian Chonetid Brachiopod Genus. Royal Society of Victoria, Proceedings, 80(1):141–145.

1968. Brachiopods of the Bois Blanc Formation in New York. U.S. Geological Survey Professional Paper, 584-B: 27 pages.

1972. Callicalyptella, a New Genus of Notanopliid Brachiopod from the Devonian of Nevada. Journal of Paleontology, 46(2):299–302, 2 plates.

1979. Pentamerinae (Silurian Brachiopoda). Palaeontographica, series A, 163(4–6):87–129, 15 plates.

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1971. Descriptions of Brachiopod Genera of Subfamily Virgianinae Boucot and Amsden, 1963. Eesti NSV Teaduste Akadeemia Toimetised, Keemia Geoloogia, 20: 271–280, 6 plates.

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1964. On Some Atrypoid, Retzioid and Athyridoid Brachiopoda. Journal of Paleontology, 38(5)805–822, 4 plates.

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1978. First Upper Silurian Fossils from Northern Newfoundland. Journal of Paleontology, 52(2):267–274.

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1976. Les Terebratulides de l’Oxfordien du Jura et de la bordure sud du bassin de Paris. Annales Scientifiques de l’Universite de Besançon, series 3 (Géologie), 27:1–457, 212 figures, 25 plates.

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1966. Boucotella, a New Silurian Rhynchonelloid Brachiopod Genus. Journal of Paleontology, 40(1): 186–189, 2 plates.

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1966. New Genus of Spiriferid Brachiopod from Oklahoma and Texas. Oklahoma Geological Survey Notes, 26(3):74–78, 1 plate.

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1970a. Dva Novykh Siluriiskikh Roda iz Nadsemeistva Pentameracea. In Materialy po Paleontologii Urala, pages 52–56, 4 plates. Sverdlovsk: Akademiia Nauk SSSR, Uralskii Filial Institut Geologii Geokhimi.

1970b. Novye Vidy Gipiduli i Roda Colongina iz Pogranichnykh Siluro-Devonskikh Otlozhenii Vostochnogo Sklona Urala. In Materialy po Paleontologii Urala, pages 57–62, 1 plate. Sverdlovsk: Akademiia Nauk SSSR, Uralskii Filial Institut Geologii i Geokhimi.

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1977. Silesiathyris n. gen. (Brachiopoda, Zeilleriidae)—ein neues Genus aus dem Unteren Muschelkalk von Gorny Slask (VR Polen). Zeitschrift für Geologische Wissenschaften, 5(5):663–675, 3 plates.

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1917. The Brachiopoda of the Namyau Beds, Northern Shan States, Burma. Palaeontologia Indica, new series, 3(2): 299 pages, 21 plates.

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1959. The Martiniopsis-like Spiriferids of the Queensland Permian. Palaeontology, 1(4):333–350, 2 plates.

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1963. The Faunas of the Tournaisian Tulcumba Sandstone and Its Members in the Werrie and Belvue Synclines, New South Wales. Geological Society of Australia, Journal, 10(1):55–122, 9 plates.

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1967a. Mississippian Brachiopods from the Chappel Limestone of Central Texas. Bulletin ef American Paleontology, 53:249–488.

1967b. An Unusual Spiriferacean Brachiopod from the Barnett Formation (Mississippian) of Central Texas. Journal of Paleontology, 41(3):587–594, 1 plate.

1968. New Genera and Species of Early Mississippian Brachiopods from the Burlington Limestone. Journal el Paleontology, 42(5):1140–1152, 4 plates.

1971. New Early Mississippian Silicified Brachiopods from Central Iowa. In J. T. Dutro, Jr., editor, Paleozoic Perspectives: A Paleontological Tribute to G. Arthur Cooper. Smithsonian Contributions to Paleobiology, 3:245–255, 2 figures, 2 plates.

1972. Two New Genera of Lamellose Spiriferacean Brachiopods. Journal of Paleontology, 46(5):729–734.

1974. New Genera of Spiriferid and Brachythyridid Brachiopods. Journal of Paleontology, 48(4):674–696, 4 figures, 4 plates.

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1939. A Devonian Fauna from Colombia. Bulletin of American Paleontology, 24(83):1–218, 14 plates.

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1928. Productidae of China, II: Chonetinae, Productinae and Richthofeniinae. China, Geological Survey, Palaeontologia Sinica, series B, 5(3):1–103, 6 plates.

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1973. Brachiopods of the Murrumbidgee Group, Taemas, New South Wales. Australia, Bureau of Mineral Resources, Geology and Geophysics, Bulletin, 137:1–146, 49 figures, 35 plates.

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1969. Upper Jurassic Rhynchonellid Brachiopods from Northwestern Europe. British Museum (Natural History), Bulletin (Geology), 6(Suppl.):1–119, 36 figures.

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1938. Rhynchonellids from the Bagh Beds. Indian Academy of Sciences, Proceedings, 7(6):300–316, 7 figures, plate 30.

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1975. Une Faunule silificée nouvelle dans le trias moyen de la Svilaja (Yougoslavie). Annales Societe Geologique Nord, 95(4):231–242, 11 figures, 2 plates.

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1933. Corals and Brachiopods of the Kinling Limestone. National Research Institute of Geology, Academia Sinica, Monographs, series A, 2:1–73, 5 plates.

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1917. New Blastoids and Brachiopods from the Rocky Mountains. Harvard University, Museum of Comparative Zoology, Bulletin, 61(9):361–380, 5 figures, 2 plates.

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1907. Some New Devonic Fossils. New York State Museum, Bulletin, 107:153–291.

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1913b. Fosseis Devonianos do Paraná. Monographias do Serviço Geologico e Mineralogico do Brasil, 1:1–353, 27 plates.

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1970. A New Permian Strophalosiid Brachiopod Genus from Eastern Australia. Journal of Paleontology, 44(5):986–987.

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1942. Terebratuloid Brachiopoda of the Silurian and Devonian. Geological Society of America, Special Paper, 38:1–182, 26 plates.

1948. Brachiopods from the Lower Ordovician of Texas. Harvard University, Museum of Comparative Zoology, Bulletin, 100(5):451–472.

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1921. The Cambrian Horizons of Comley (Shropshire) and Their Brachiopoda, Pteropoda, Gasteropoda, etc. Geological Society of London, Quarterly Journal, 76: 325–386, plates 21–24.

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1967. A New Craniacean Brachiopod from the Tertiary of Western Australia. Geological Survey of Western Australia Report, 1966:119–120, 1 plate.

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1911. The Name Glossina, Nautilus, 25:96.

1929. The Brachiopod Called Mimulus, Nautilus, 42:105.

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1967. Llandovery Stropheodontids from the Welsh Borderland. Palaeontology, 10(2):245–265, 3 figures, 3 plates.

1968. Some Strophomenacean Brachiopods from the British Lower Silurian. British Museum (Natural History), Bulletin (Geology), 15(6):285–324, 14 plates.

1979a. New Acrotretacean Brachiopods from the Palaeozoic of Britain and Austria. Palaeontology, 22(1): 93–100, 2 plates.

1979b. A Silicified Brachiopod Fauna from the Silurian of Iran. British Museum (Natural History), Bulletin (Geology), 32(1):25–42, 4 plates.

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1938. Brachiopodes Devoniens des Gisements de Ferrones (Asturies) et de Sabero (Leon). Annales of Paleontologie, 27:39–88.

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1839. Second Annual Report on the Paleontological Department of the Survey. New York Geological Survey, Annual Report, 3:57–66.

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1930. The Brachiopod Genus Pionodema and Its Homoeomorphs. Journal of Paleontology, 4(4):369–382, plates 35–37.

1935. Oligorhynchia, a New Ordovician (Chazy) Brachiopod. American Journal of Science, series 5, 29(169): 48–53, 1 plate.

1936. New Cambrian Brachiopods from Alaska. Journal of Paleontology, 10(3):210–214, plate 26.

1942. New Genera of North American Brachiopods. Washington Academy of Sciences, Journal, 32(8):228–235.

1948. A New Genus of Brachiopoda from the Longview Limestone of Virginia. Harvard University, Museum of Comparative Zoology, Bulletin, 100(6):473–474, 1 plate.

1951. New Brachiopods from the Lower Cambrian of Virginia. Washington Academy of Sciences, Journal, 41(1):4–8, 1 plate.

1952a. Unusual Specimens of the Brachiopod Family Isogrammidae. Journal of Paleontology, 26(1): 113–119, plates 21–23.

1952b. New and Unusual Species of Brachiopods from the Arbuckle Group in Oklahoma. Smithsonian Miscellaneous Collections, 117(14):1–35, plates 1–4.

1953. Permian Fauna at El Antimonio, Western Sonora, Mexico. Smithsonian Miscellaneous Collections, 119(2): 21–77, plates 4–23.

1954. Unusual Devonian Brachiopods. Journal of Paleontology, 28(3):325–332, 5 figures, plates 36–37.

1955a. New Genera of Middle Paleozoic Brachiopods. Journal of Paleontology, 29(1):45–63, plates 11–14.

1955b. New Brachiopods from Cuba. Journal of Paleontology, 29(1):64–70, plate 15.

1955c. New Cretaceous Brachiopoda from Arizona. Smithsonian Miscellaneous Collections, 131(4):1–18, 4 plates.

1956a. New Pennsylvanian Brachiopods. Journal of Paleontology, 30(3):521–530, 1 figure, plate 61.

1956b. Pustulatia, New Name for the Devonian Brachiopod Pustulina, Preoccupied. Journal of Paleontology, 30(3):769.

1956c. Chazyan and Related Brachiopods. Smithsonian Miscellaneous Collections, 127(1):1–1024; 127(2): 1025–1245, 269 plates.

1957a. Tertiary and Pleistocene Brachiopods of Okinawa, Ryukyu Islands. U.S.G.S. Professional Paper, 314-A: 1–20, 5 plates.

1957b. Permian Brachiopods from Central Oregon. Smithsonian Miscellaneous Collections, 134(12): 1–79, 12 plates.

1959. Genera of Tertiary and Recent Rhynchonelloid Brachiopods. Smithsonian Miscellaneous Collections, 139(5):1–90, 22 plates.

1960. Correction of Brachiopod Names. Journal of Paleontology, 34(3):601.

1971. Eocene Brachiopods from Eua, Tonga. U.S.G.S. Professional Paper, 640-F:1–8, 1 plate.

1972a. Correction of a Brachiopod Name. Journal of Paleontology, 46(3)450.

1972b. Homeomorphy in Recent Deep-Sea Brachiopods. Smithsonian Contributions to Paleobiology, 11:1–16, plates 19–25.

1973a. New Brachiopoda from the Indian Ocean. Smithsonian Contributions to Paleobiology, 16:1–43, 8 plates.

1973b. Vema’s Brachipoda (Recent). Smithsonian Contributions to Paleobiology, 17:1–51, 5 figures, 9 plates.

1973c. Fossil and Recent Cancellothyridacea (Brachiopoda). Science Reports of Tohoku University (Geology), special volume 6:371–390, plates 42–46.

1976. Lower Cambrian Brachiopods from the Rift Valley (Israel and Jordan). Journal of Paleontology, 50(2):269–289, 3 plates.

1977. Brachiopods from the Caribbean Sea and Adjacent Waters. Studies in Tropical Oceanography, 14:1–212, 35 plates.

1978. Tertiary and Quaternary Brachiopods from the Southwest Pacific. Smithsonian Contributions to Paleobiology, 38:1–23, 4 figures, 2 plates.

1979. Tertiary and Cretaceous Brachiopods from Cuba and the Caribbean. Smithsonian Contributions to Paleobiology, 37:1–45, 7 plates.

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1962. Torynechus, New Name for Permian Brachiopod Uncinuloides King. Journal of Paleontology, 36(5): 1128–1129.

1969. New Permian Brachiopods from West Texas. Smithsonian Contributions to Paleobiology, 1:1–20, 5 plates.

1970. New Name for Brachiopod Homonym and Citation of Types. Journal of Paleontologoy, 44(3):579.

1974. Permian Brachiopods of West Texas, II. Smithsonian Contributions to Paleobiology, 15:233–793, plates 24–191.

1975. Permian Brachiopods of West Texas, III. Smithsonian Contributions to Paleobiology, 19:795–1921, plates 192–502.

1976a. Permian Brachiopods of West Texas, IV. Smithsonian Contributions to Paleobiology, 21:1923–2607, plates 503–662.

1976b. Permian Brachiopods of West Texas, V. Smithsonian Contributions to Paleobiology, 24:2609–3159, plates 663–780.

Cooper, G. A., and C. H. Kindle

1936. New Brachiopods and Trilobites from the Upper Ordovician of Percé, Quebec. Journal of Paleontology, 10(5):348–372, plates 51–53.

Cooper, G. A., and H. M. Muir-Wood

1951. Brachiopod Homonyms. Washington Academy of Sciences, Journal, 41(6):195–196.

1967. New Names for Brachiopod Homonyms. Journal of Paleontology, 41(3):808.

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1955. New Genera of Permian Brachiopods from West Texas. Journal of Paleontology, 29(3)469–474, plates 52–54.

Cooper, G. A., and L. Whitcomb

1933. Salonia, a New Ordovician Brachiopod Genus. Washington Academy of Sciences, Journal, 23(11): 496–503, 23 figures.

Cooper, G. A., and J. S. Williams

1935. Tully Formation of New York. Geological Society of America, Bulletin, 46(5):781–868, 3 plates.

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1934. Airtonia, a New Brachiopod Genus from the Lower Carboniferous of Yorkshire. Annals and Magazine of Natural History, series 10, 14:273–289, 1 plate.

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1964. European Mid-Devonian Correlations. Nature, 204(4956):363–364.

1966a. European Mid-Devonian Correlations. Nature, 209(5027):982–984.

1966b. The Atrypa zonata Brachiopod Group in the Eifel, Germany. Senckenbergiana Lethaea, 47(1):1–55, 7 plates.

1967a. Frasnian Atrypidae (Bergisches Land, Germany). Palaeontographica, series A, 126(3–6): 116–140.

1967b. Atrypa (Planatrypa) a New Devonian Brachiopod Species Group. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 128(3): 229–243.

1973. New Siluro-Devonian Atrypoid Brachiopods. Journal of Paleontology, 47(3):484–500, 3 figures, 3 plates.

1977. Zygospira and Some Related Ordovician and Silurian Atrypoid Brachiopods. Palaeontology, 20(2): 295–335, plates 37–40.

1978. Devonian Atrypoids from Western and Northern Canada. Geological Association of Canada, Special Paper, 18 (Percival Sydney Warren Memorial Volume):289–331.

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1898. Errata et rectifications. Revue Critique de Paléozoologie, 1898 (2): 76–77.

1909. Organe trimestriel. Revue Critique de Paléozoologie, 1909 (4): 215.

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1852. Class V, Brachiopodi. In Fauna del Regno di Napoli, 10:1–60, 9 plates. Naples.

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1978. Terebratulacea from the Cretaceous Shenley Limestone. Palaeontology, 21 (2):411–441, plates 40–42.

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1846. Description of Three New Fossils from the Falls of Ohio. Annals of the Lyceum of Natural History, New York, 4:157–159.

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1933. Attempt to Zone the North American Jurassic on the Basis of Its Brachiopods. Geological Society of America, Bulletin, 44(5):871–893, plates 19–22.

1950. Some Devonian Spiriferidae from Alberta. Journal of Paleontology, 24(2):219–225, plates 36–37.

1952. Nomenclature of Certain Devonian Brachiopods. 2 pages. Calgary: published by the author.

1953a. New Spiriferidae from the Devonian of Western Canada. 11 pages, 6 plates. Calgary: published by the author.

1953b. Warrenella, a New Genus of Devonian Brachiopod. Journal of Paleontology, 27(4):596–600, 25 figures.

1954. Paleontological Correlation of Elk Point and Equivalents. In Western Canada Sedimentary Basin: A Symposium of the Alberta Society of Petroleum Geologists (Ralph Leslie Rutherford Memorial Volume), pages 143–158. Tulsa: American Association of Petroleum Geologists.

1963. Significant New Devonian Brachiopods from Western Canada. 63 pages, 16 plates. Calgary: Evelyn de Mille Books.

1967. The Method of Indivisible Aggregates in Studies of the Devonian. 22 pages. Calgary: Evelyn de Mille Books.

1968. Discoveries in the Devonian of Western Canada. 12 pages, 17 plates. Calgary: published by the author.

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1969. Sedimentary Environment and Stratigraphical Position of the Treskelodden Beds (Vestspitsbergen). Prace Muzeum Ziemi, 16:201–336, 12 figures, 34 plates.

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1959a. [New Genera of Triassic Terebratulida.] Lietuvos TSR Mokslu, Akademija Geologijos ir Geografijos Institutas, Moksliniai Pranesimai, SSR, Trudy, series B, 9: 23–41, 1 plate. [In Russian.]

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1962a. [New Late Triassic Spiriferinacea from the Northwestern Caucasus.] Paleontologicheskii Zhurnal, 1962(3):47–56, 1 plate. [In Russian.]

1962b. [Some New and Little Known Upper Triassic Athyrids.] Lietuvos TSR Geologijos ir Geografijos Institutas, Moksliniai Pranesimai, SSR, Trudy, 14(1):59–78, 4 plates. [In Russian.]

1963. Verkhnetriasovye Brakhiopody Yuga S.S.S.R. 248 pages, 31 plates. Moscow: Akademiia Nauk SSSR, Sibirskoe Otdelenie.

1965. Triasovye Brakhiopody Sibiri. 186 pages, 66 figures, 26 plates. Moscow: Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii i Geofiziki.

1968. Yurskie i Rannemelovye Brakhiopody Severa Sibiri. Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii i Geofiziki, Trudy, 41:1–167, 26 plates.

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1972b. [Ultrastructure of Thecospirid Shells and Their Position in Brachiopod Systematics.] Paleontologicheskii Zhurnal, 1972(3):87–98, 5 figures, 2 plates. [In Russian.]

1972c. [The Occurrence of a Metachoresa in Triassic Spiriferina.] In Problemy Paleozoogeografii Mezozoia Sibiri. Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologoii Geofiziki, Trudy, 111:34–44, 4 figures. [In Russian.]

1972d. [The Postembryonic Development of the Brachidia in Late Paleozoic and Early Mesozoic Terebratulida.] In Morfologicheskie i Filogeneticheskie Voprosy Paleontologoii. Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii i Geofiziki, Trudy, 112: 22–58, 27 figures. [In Russian.]

1974. Triasovye Brakhiopody (Morfologia, Sistema, Filogenii, Stratigraficheskoe Znachenie i Biogeografiia). Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologoi i Geofiziki, Trudy, 214:1–386, 49 plates.

1977a. [New Triassic Brachiopods from the North-East of the USSR.] In Stratigrafia i Fauna Boreal’nogo Triasa. Akademiia Nauk SSSR, Sibirskoe Otdelenie, Institut Geologii i Geofiziki, Trudy, 344:5–23. [In Russian.]

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1870. A Revision of the Terebratulidae and Lingulidae, with Remarks and Descriptions of some Recent Forms. American Journal of Conchology, 6:88–168, plates 6–8.

1871a. A New Genus of Brachiopods. American Naturalist, 5:55.

1871b. Report on the Brachiopoda Obtained by the United States Coast Survey Expedition in Charge of L.F. de Pourtales, with a Revision of the Craniidae and Discinidae. Harvard University, Museum of Comparative Zoology, Bulletin, 3(1):1–45, 2 plates.

1877. Index to the Names Which Have Been Applied to the Subdivisions of the Class Brachiopoda. United States National Museum, Bulletin, 8:1–88.

1895. Report on Mollusca and Brachiopoda Dredged in Deep Water, Chiefly near the Hawaiian Islands, with Illustrations of Hitherto Unfigured Species from Northwest America. United States National Museum, Proceedings, 17:675–733, plates 23–32.

1900. Some Names Which Must be Discarded. Nautilus, 14:44–45.

1903. Contributions to the Tertiary Fauna of Florida. Wagner Free Institute of Science of Philadelphia, Bulletin, 3(6): 1219–1620, plates 48–60.

1908. The Mollusca and the Brachiopoda. Harvard University, Museum of Comparative Zoology, Bulletin, 43: 205–487, 22 plates.

1919. New Shells from the North-west Coast. Biological Society of Washington, Proceedings, 32:249–251.

1920. Annotated List of the Recent Brachiopoda in the Collection of the United States National Museum, with Descriptions of 33 New Forms. United States National Museum, Proceedings, 57(2314):261–377.

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1828. Uppställning och Beskrifning af de i sverige funne Terebratuliter. Kongl. Svenska Vetenskapsakademien, Handlingar, 1827:85–155, plates 1–6.

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1850a. On the Genus Waltonia. Annals and Magazine of Natural History, series 2, 5:474–476.

1850b. Sur quelques Brachiopodes nouveaux ou peu Connus. Société Géologique de France, Bulletin, series 2, 8: 62–74.

1852a. A Monograph of the British Fossil Brachiopoda [volume 1, part 2]. Palaeontolographical Society [Monographs], 1852–1855:1–117, plates 1–12.

1852b. Notes and Descriptions of a Few Brachiopoda; Including a Monograph of the French Liasic Spirifers. Annals and Magazine of Natural History, series 2, 9:249–27, plates 13–15.

1852c. Sketch of a Classification of Recent Brachiopoda Based Upon Internal Organization. Annals and Magazine of Natural History, series 2, 9:361–377.

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1874. On the Tertiary Brachiopoda of Belgium. Geological Magazine, 1:150–159, plates 7–8.

1881a. Description of New Upper Silurian Brachiopoda from Shropshire. Geological Magazine, 8:145–156, plate 5.

1881b. On Genera and Species of Spiral-Bearing Brachiopoda, from Specimens Developed by the Rev. Norman Glass. Geological Magazine, 8:1–13, 15 figures.

1881c. On the Genera Merista, Suess, 1851, and Dayia, Davidson, 1881. Geological Magazine, 8:289–293.

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1855. Notice sur un genre nouveau de brachiopodes. Annuaire de l’Institut des Provinces, 1855:529–553, 1 plate.

1884. Notes sur les modification a apporter a la classification des Terebratulidae. Bulletin de la Société Linnéenne de Normandie, 3rd series, 8:161–388, plates 13–28.

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1898. Description of a Fauna Found in the Devonian Black Shale of Eastern Kentucky. American Journal of Science, series 4, 6:384–395, 6 figures.

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1966. New Spinose Early Meramec (Upper Mississippian) Productoid Brachiopods. Journal of Paleontology, 40(3):573–584.

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1923. Stratigraphy of China, Part Palaeozoic and Older. 528 pages, 6 plates. Peking: China Geological Survey.

1931a. Devonian Brachiopoda of China, I: Devonian Brachiopoda from Yunnan and other Districts in South China. China Geological Survey, Palaeontologia Sinica, series B, 3(3):1–545, 67 figures, 54 plates.

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1930a. Sul Permiano di Sicilia (Fossili del calcare con Fusulina di Palazzo Adriano non descritti del Prof. G. Gemmellaro conservati nel mio privato gabinetto). Annales de GéOlogie et de Paléontologie (Palermo), 52:18–32, plates 4–11.

1930b. Fossili triassici della zona a Rhynchonellina bilobata Gemm. dei dintorni di Palermo. Annales de Géologie et de Paléontologie (Palermo), 55:1–18, 4 plates.

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1939. Fauna of the Niagaran Nodules of the Chicago Area. Journal of Paleontology, 13(6):543–560, 2 figures, plates 61–62.

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1871b. Descriptions of Some New Species of Fossils, from the Shales of the Hudson River Group, in the Vicinity of Cincinnati, Ohio. In Advance Copy of the 24th Report on the State Cabinet of Natural History, pages 1–8, 4 plates.

1872. Notes on Some New or Imperfectly Known Forms among the Brachiopoda. In Preliminary Notice, 23rd Annual Report on the State Cabinet of Natural History, pages 244–247, plate 13.

1879. The Fauna of the Niagara Group. New York State Museum of Natural History, Report, 28:98–203, plates 3–34.

1883. Brachiopoda, Plates and Explanations. Annual Report of the New York State Geologist, 4(2), plate 36.

Hall, J., and J. M. Clarke

1890. [Extract.] In Palaeontology of New York, 8:120–160.

1892. An Introduction to the Study of the Genera of Palaeozoic Brachiopoda. New York Geological Survey, Palaeontology, 8(1):1–367, 20 plates.

1893. An Introduction to the Study of the Genera of Palaeozoic Brachiopoda. New York Geological Survey, 8(2):1–317, plates 21–84.

1894. An Introduction to the Study of the Brachiopoda Intended as a Handbook for the Use of Students. 13th Annual Report N. Y. State Geologist for the Year 1893, 2:751–943, plates 23–54.

Hall, J., and R. P. Whitfield

1875. Descriptions of Invertebrate Fossils Mainly from the Silurian System: Fossils of the Hudson River Group. Ohio Geological Survey, Report, 2(2):67–110, 4 plates.

Hamada, T.

1968a. Swaicoelia, a New Ambocoeliid Genus (Brachiopoda) from North Thailand. In T. Kobayashi and R. Toriyama, editors, Geology and Palaeontology of Southeast Asia, 5:1–12. Tokyo: University of Tokyo Press.

1968b. Ambocoeliids from Red Beds in the Malayan Peninsula. In T. Kobayashi and R. Toriyama, editors, Geology and Palaeontology of Southeast Asia, 5: 13–25. Tokyo: University of Tokyo Press.

1969a. Late Paleozoic Brachiopods from Red Beds in the Malayan Peninsula. In T. Kobayashi and R. Toriyama, editors, Geology and Palaeontology of Southeast Asia, 6:251–264, 2 plates. Tokyo: University of Tokyo Press.

1969b. Devonian Brachiopods from Kroh, Upper Perak in Malaysia (Malaya). In T. Kobayashi and R. Toriyama, editors, Geology and Palaeontology of Southeast Asia, 7:1–13. Tokyo: University of Tokyo Press.

1971. Early Devonian Brachiopods from the Lesser Khingan District of Northeast China. Paleontological Society of Japan, Special Paper, 15:1–98, 23 figures, 30 plates.

Harper, C. W., Jr.

1973. Brachiopods of the Arisaig Group (Silurian-Lower Devonian) of Nova Scotia. Geological Survey of Canada, Bulletin, 215:1–163, 3 figures, 28 plates.

Harper, C. W., Jr., and A. J. Boucot

1978a. The Stropheodontacea, Part I (Leptostrophiidae, Eostropheodontidae, and Strophonellidae). Palaeontographica, series A, 161(1–3):55–118, 4 figures, 50 plates.

1978b. The Stropheodontacea, Part II (Douvillinidae, Telaeoshaleriidae, Amphistrophiidae, and Shaleriidae). Palaeontographica, series A, 161(4–6):119–175, 17 plates.

1978c. The Stropheodontacea, Part III (Stropheodontidae, Pholidostrophiidae, and Lissostrophiidae). Palaeontographica, series A, 162(1–2):1–80, plates 36–50.

Harper, C. W., Jr., A. J. Boucot, and V. G. Walmsley

1969. The Rhipidomellid Brachiopod Subfamilies Heterorthinae and Platyorthinae (New). Journal of Paleontology, 43(1):74–92, 3 plates.

Harper, C. W., Jr., J. G. Johnson, and A. J. Boucot

1967. The Pholidostrophiinae (Brachiopoda; Ordovician, Silurian, Devonian). Senckenbergiana Lethaea, 48(5):403–461, 10 plates.

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1955. The Permian Eurydesma Fauna of Eastern Argentina. Journal of Paleontology, 29(1):112–128, plates 23–26.

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1936. Neogene Brachiopoda from Japan. Japanese Journal of Geology and Geography, 13:283–324, plates 34–35.

1938. The Tertiary and Recent Brachiopoda of Northeast Honsyu, Japan. Satio Ho-on Kai Museum Research Bulletin, 16:89–246, plates 16–20.

1940. The Cenozoic Brachiopoda from Japan. Tohoku Imperial University, Science Reports, series 2 (Geology), 20:1–413, 12 plates.

1946. Kurakithyris, Tertiary Brachiopod Genus from Central Honsyu, Japan. Proceedings of the Japan Academy, 22(4):98–101, 6 figures.

1948. New Tertiary Brachiopoda from Japan. Journal of Paleontology, 22(4)494–499, plate 78.

Havlíček, V.

1949a. [Orthoidea and Clitambonoidea of the Bohemian Tremadoc.] Státního Geologického Ústavu Ceskoslovenské Republiky, Sbornik, 16(1):93–144, 5 plates. [In Czech.]

1949b. [The Orthacea of the Komarov Beds (Brachiopoda).] Státního Geologického Ústavu Ceskoslovenské Republiky, Vĕstnik, 24:249–256. [In Czech.]

1950. [The Ordovician Brachiopoda from Bohemia.] Ústrĕdniho Ústavu Geologického, Rozpravy, 13:1–72, 13 plates. [In Czech.]

1951. A Paleontological Study of the Devonian of Čelechovice; Brachiopods (Pentameracea, Rhynchonellacea, Spiriferacea). Ústrĕdniho Ústavu Geologického, Sbornik, 18:1–20, 4 plates.

1952. [On the Ordovician Representatives of the Family Plectambonitidae (Brachiopoda).] Ústrĕdniho Ústavu Geologického, Sborník, 19:397–428. [In Czech.]

1953. O nĕkolika novyćh ramenonožcich českého a moravskeho středního devonu. Ústrĕdniho Ústavu Geologického, Vĕstník, 28:4–9.

1956. [The Brachiopods of the Branik and Hlubocepy Limestones in the Immediate Vicinity of Prague.] Ústrĕdniho Ústavu Geologického, Sborník, 22:535–650, 12 plates. [In Czech.]

1957a. O nových rodech českých spiriferidie (Brachiopoda). Ústrĕdniho Ústavu Geologického, Vistrdk, 32 (4) 245–248.

1957b. Daglší nove rody čelidi Spiriferidae y Českém Siluru a Devonu. Ústrĕdniho Ústavu Geologického, Vĕstník, 32(6):436–440.

1959a. [The Spiriferidae of the Silurian and Devonian of Bohemia.] Ústrĕdniho Ústavu Geologického, Rozpravy, 25:1–275, 101 figures, 28 plates. [In Czech.]

1959b. Rhynchonellacea im böhmischen älteren Paläozoikum (Brachiopoda). Ústrĕdniho Ústavu Geologického, Véstník, 34(1):78–82.

1960. Bericht über die Ergebnisse der Revision der böhmischen altpaläozoischen Rhynchonelloidea. Ústrĕdniho Ústavu Geologického, Vestník, 35(3):241–244.

1961a. Rhynchonelloidea des böhmischen alteren Palaözoikums (Brachiopoda). Ústrĕdniho Ústavu Geologického, Rozpravy, 27:1–211, 27 plates.

1961b. Plectambonitacea im böhmischen Palaözoikum (Brachiopoda). Ústrĕdniho Ústavu Geologického, Vĕstník 36(6):447–451.

1962. Oberfamilie Stropheodontacea im mährischen Mitteldevon (Brachiopoda). Ústrĕdniho Ústavu Geologického, Vĕstnik, 37(6):471–472.

1963a. Zlichorhynchus hiatus n.g. et n. sp., neuer Brachiopode vom Unterdevon Böhmens. Ústrĕdniho Ústavu Geologického, Vĕstník, 38(6):403–404, 1 plate.

1963b. Čeled Leptaenidae (Brachiopoda) y českém Siluro a Devonu. Casopis Národního Muzea, 132(4):220–225, 1 plate.

1965a. Superfamily Orthotetacea (Brachiopoda) in the Bohemian and Moravian Palaeozoic. Ústrĕdniho Ústavu Geologického, Vĕstník, 40(4):291–294.

1965b. Family Leptostrophiidae Caster, 1939 (Strophomenida, Brachiopoda) in the Bohemian Paleozoic. Casopis Národního Muzea, 134(1):6–7.

1967a. Brachiopoda of the Suborder Strophomenidina in Czechoslovakia. Ústrĕdniho Ústavu Geologického, Rozpravy, 33:1–235, 52 plates.

1967b. Hanusitrypa and Falsatrypa (Atrypacea, Brachiopoda) in the Lower Devonian of Bohemia. Ústrĕdniho Ústavu Geologického, Vĕstnik, 42(6):443–444, 2 plates.

1968. New Brachiopods in the Lower Caradoc of Bohemia. Ústrĕdniho Ústavu Geologického, Vĕstník, 43: 123–125.

1970a. Pompeckium and Jamesella (Orthacea, Brachiopoda) in the Middle Cambrian of Bohemia. Ústrĕdniho Ústavu Geologického, Vĕstnik, 45:289–290, 2 plates.

1970b. Heterorthidae (Brachiopoda) in the Mediterranean Province. Geologických Vĕd, Sbornik (Paleontologie), 12:7–40, 11 plates.

1971a. Non-Costate and Weakly Costate Spiriferidina (Brachiopoda) in the Silurian and Lower Devonian of Bohemia. Geologických Vĕd, Sbornik (Paleontologie), 14:7–34, 8 plates.

1971b. New Genera of Enteletacean Brachiopods in the Devonian of Bohemia. Útrĕdniho Ústavu Geologického, Vĕstnik, 46:229–232, 18 plates.

1971c. Brachiopodes de l’Ordovicien du Maroc. Maroc Service Geologique do Division des Mines el de la Geologie, Notes el Memoires, 230:1–135, 3 figures, 26 plates.

1972. Life Habit of Some Ordovician Inarticulate Brachiopods. Ústrĕdniho Ústavu Geologického, Vĕstník, 47(4):229–233, 2 figures, 13 plates.

1973. New Brachiopod Genera in the Devonian of Bohemia. Ústrĕdniho Ústavu Geologického, Vĕstnik, 48: 337–340, 2 plates.

1974. New Genera of Orthidina (Brachiopoda) in the Lower Palaeozoic of Bohemia. Ústrĕdniho Ústavu Geologického, Vĕstník, 49(3):167–170, 2 plates.

1975. New Genera and Species of Orthida (Brachiopoda). Ústrĕdniho Ústavu Geologického, Vĕstnik, 50(4):231–235, 2 plates.

1976. Systematic Position of Four Ordovician Brachiopod Species. Ústrĕdniho Ústavu Geologického, Vĕstnik, 51:367–370, 2 plates.

1977a. Brachiopods of the Order Orthida in Czechoslovakia. Ústrĕdniho Ústavu Geologického, Rozpravy, 44: 1–327, 56 plates.

1977b. Minute Devonian Brachiopods (Notanopliidae, Leptostrophiidae) in Bohemia. Ústrĕdniho Ústavu Geologického, Vĕstnek, 52:299–302, 2 plates.

1978. New Spiriferids (Brachiopoda) of Pragian Age (Lower Devonian, Bohemia). Ústrĕdniho Ústavu Geologického, Vĕstník, 53:103–106, 2 plates.

1979. Upper Devonian and Lower Tournaisian Rhynchonellida in Czechoslovakia. Ústrĕdniho Ústavu Geologického, Vĕstník, 54(2):87–101, 4 plates.

Havlíček, V., and V. Josopait

1972. Articulate Brachiopods from the Iberian Chains, Northeast Spain (Middle Cambrian-Upper Cambrian-Tremadoc). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 140(3):328–353, 2 figures, 5 plates.

Havliček, V., and D. Massa

1973. Brachiopodes de l’Ordovicien Supérieur de Libye Occidentale, Implications Stratigraphiques Régionales. Geobios, 6(4):267–290, 4 plates.

Havlíček, V., and P. Racheboeuf

1979. Chonetacea (Brachiopodes) du Silurien et du Dévonien de Bohême (Tchécoslovaquie). Annales de Paléontologie (Invertébrés), 65(2):69–138, 15 plates.

Hayasaka, I.

1922. Palaeozoic Brachiopoda from Japan, Korea, and China. Tohoku Imperial University, Science Reports, series 2 (Geology), 6(1):1–137, 6 plates.

1938. A New Neotreme Genus of Brachiopoda from Japan. Venus, 8(1):9–13, 2 figures.

1953. Hamletella, a New Permian Genus of Brachiopoda, and a New Species from the Kitakami Mountains, Japan. Paleontological Society of Japan, Transactions and Proceedings, 12:89–95, plate 9.

He, X., and M. Zhu

1979. [A New Form of Brachiopods and Its Systematical Classification.] Journal of China Institute of Mining Technology, 1979 (4):131–140, 1 figure, 3 plates. [In Chinese.]

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1879. On the Fossil Brachiopoda of New Zealand. New Zealand Institute, Transactions and Proceedings, 11:537-539.

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1905. Mollusca (and Brachiopoda) from One Hundred and Eleven Fathoms, East of Cape Byron, New South Wales. Records of the Australian Museum, 6(2): 41–54.

Hedstrom, H.

1917. Ueber einige mit der Schale befestigte Strophomenidae aus dem Obersilur Gotlands. Sveriges Geologiska Undersökning, Arsbok, series C, 276:1–14, 3 plates.

Helmbrecht, W., and R. Wedekind

1923. Versuch einer biostratigraphischen Gliederung der Siegener Schichten auf Grund von Rensselaerien und Spiriferen. Glückauf; Berg.- und, Hüttenmännische Zeitschrift, 59(41):949–953.

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1940. Die Brachiopoden der deutschen Tiefsee-Expedition. In Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer “Valdivia,” 1898–1899, 24(3):217–316.

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1847. Aulosteges variabilis im Zechstein Russlands, ein neues Brachiopoden-Genus. Neues Jahrbuch für Mineralogie, Geognosie, Geologoie, und Petrefakten-Kunde, 1847:330–331.

Hertlein, L. G., and U. S. Grant IV

1944. The Cenozoic Brachiopoda of Western North America. University of California Publications in Mathematics and Physical Sciences, 3:1–236, 21 plates.

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1950. The Productinae of the Artinskian Cracow Fauna of Queensland. University of Queensland, Department of Geology, Papers, 3(11):1–36, 9 plates.

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1971. [A New Genus of Rhipidomellid Brachiopods from the Middle Ordovician of the Moscovian Syncline.] Eesti NSV Teaduste Akadeemia Toimetised (Keemia Geoloogia ), 20(3):266–270, 1 figure, 1 plate. [In Russian.]

1973. [New Brachiopods Orthacea from the Middle Ordovician of the Baltic Area and Sweden.] Eesti NSV Teaduste Akadeemia Toimetised (Keemia Geoloogia), 22(3):248–256, 2 figures, 2 plates. [In Russian.]

1975. Brakhiopody Enteletacea Ordovika Pribaltiki. 117 pages, 23 plates. Tallin: Eesti NSV Teaduste Akadeemia Geoloogia Instituut.

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1960. New Pennsylvanian Brachiopoda from Southwest Missouri. Journal of Paleontology, 34(2):217–232, plates 1–2.

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1916. The Strophomenidae of the Kristiania Region. Kongelige Norske Videnskabers Selskabs Skrifter, 12:1–118, 16 plates.

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1895. Die Fauna der Schichten mit Maeneceras terebratum. Königlich Preussischer Geologischen Landesanstalt, Abhandlungen, 16:234–237.

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1979. Early Triassic Terebratulid Brachiopods from the Western Interior of the United States. U.S. Geological Survey Professional Paper, 1057:1–21, 4 plates.

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1963. [Some New Middle Devonian Brachiopods from the Provinces of Guansi and Yunnan.] Acta Palaeontologica Sinica, 11(3):412–432. [In Chinese.]

1965. [Early Carboniferous Brachiopods from the Mengkungao Formation of Gieling, Central Hunan.] Professional Paper of Academy of Geological Sciences, Ministry of Geology (Stratigraphy and Paleontology), series B, 1:111–146, 6 plates. [In Chinese; English summary.]

Hou, Hung-fei, and Si-yuan Xian

1964. [Brachiopod Fauna of the Nanpanjiang Limestone of Eastern Yunnan and its Geological Age.] Acta Palaeontologica Sinica, 12(3):411–425, 2 plates. [In Chinese.]

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1979. The Coal-bearing Strata and Fossils of Late Permian from Guangtung. 166 pages, 47 plates. Peking: Geological Publishing House. [In Chinese; English title page.]

Hou, Hung-fei, and Jin-ke Zhao

1976. In Hua Bei Di Qu Gu Sheng Wu Tu Ce, Nei Meng Gu Feng Ce, Yi Cu Sheng Dai Bu Feng [Paleontological Atlas of Northern China, Volume 1 (Inner Mongolia)]. 502 pages, 232 plates. Peking. [In Chinese.]

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1932. Late Permian Brachiopoda of Southwestern China, Part II. China, Geological Survey, Palaeontologia Sinica, series B, 9(1):1–138, plates 1–9.

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1961. Upper Triassic Brachiopods and Lamellibranchs from the Oman Peninsula, Arabia. Palaeontology, 4(1):1–41, 2 plates.

Hudson, R.G.S., and M. Sudbury

1959. Permian Brachiopoda from South-East Arabia. Muséum Histoire Naturelle, Notes and Mémoires sur le Moyen-Orient, 7:19–55, 12 figures, 6 plates.

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1899. Die silurischen Craniaden der Ostseeländer mit Ausschluss Gotlands. Russisch-Kaiserlichen Mineralogischen Gesellschaft, Verhandlungen, series 2(36):181–359.

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1953. Mississippian Formations of Central and Southern Ohio. Ohio Geological Survey, Bulletin, 51:1–355, plates 1–54.

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1903. Les Brachiopodes Tertiares de Patagonie. Anales del Museo Nacional de Buenos Aires, series 3, 2:321–349.

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1959. Brachiopods of the Traverse Group (Devonian) of Michigan. American Museum of Natural History, Bulletin, 116:349–409, 20 plates.

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1961. New Phosphatic Brachiopods from the Silurian of Oklahoma. Journal of Paleontology, 35(6):1137–1142, plate 137.

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1977a. Devonian Stratigraphy and Brachiopod Paleontology of Bolivia, Part A: Orthida and Strophomenida. Palaeontographica, series A, 155(5–6):133–192, 31 figures, 6 plates.

1977b. Devonian Stratigraphy and Brachiopod Paleontology of Bolivia, Part B: Spiriferida and Terebratulida. Palaeontographica, series A, 156(4–6):168–217.

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1972. Novye Dannye o Devonskikh Brakhiopoda Basseina r. Chatkal (Tian-Shari). In A. S. Masumov and R. N. Abdullaev, editors, Novye Dannye po Faune Paleozoia i Mesozoia Uzbekistana, pages 68–74. Tashkent: Akademiia Nauk Uzbekskoi SSR, Institut Geologii i Geofizikii.

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1950. Stratigrafiia Nizhnego i Srednego Paleozoia Zapadnogo Sklona Srednego Urala. Gorno-Geologicheskogo Instituta, Trudy, 18:1–32, 19 plates.

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1960. Mshanki, Brachiopody. In T. G. Sarytcheva, editor, Otryad Spiriferida. In Yu. A. Orlov, editor, Osnovy Paleontologii, pages 264–280, plates 57–64.

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1962. Two Plectambonitacean Brachiopods from the Dalby Limestone (Ord.) of Sweden. Uppsala University, Geological Institutions, Bulletin, 39:1–8, plate 1.

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1918a. On Terebratula grayi Davidson. Geological Magazine (London), new series, decade 6, 5:479–480.

1918b. Brachiopoda, British Antarctic (“Terra Nova”) Expedition (1910). British Museum (Natural History), Report (Zoology), 2(8):177–202, plate 1.

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1977. [Upper Triassic Brachiopoda Fauna from the Area in the East of the Hengduan Mountains, Western Yunnan.] In Yun-nan Zhong Sheng Dai Hua Shi, Xia Ce [Mesozoic Fossils from Yunnan, China]. 2:39–71. [In Chinese.]

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1966a. Middle Devonian Brachiopods from the Roberts Mountains, Central Nevada. Palaeontology, 9(1): 152–181, 6 plates.

1966b. Two New Spiriferid Brachiopod Genera from the Lower Devonian of Nevada. Journal of Paleontology, 40(5):1043–1050, 3 plates.

1966c. Parachonetes, a New Lower and Middle Devonian Brachiopod Genus. Palaeontology, 9(3):365–370, 2 plates.

1967. Toquimaella, a New Genus of Karpinskiinid Brachiopod. Journal of Paleontology, 41(4):874–880, 1 plate.

1970a. Taghanic Onlap and the End of North American Devonian Provinciality. Geological Society of America, Bulletin, 81:2077–2106, 6 figures, 4 plates.

1970b. Great Basin Lower Devonian Brachiopoda. Geological Society of America, Memoir, 121:1–421, 6 figures, 74 plates.

1971. Lovver Givetian Brachiopods from Central Nevada. Journal of Paleontology, 45(2):301–326, 2 figures, 10 plates.

1972. The Antistrix Brachiopod Faunule from the Middle Devonian of Central Nevada. Journal of Paleontology, 46(1):120–124, 3 plates.

1973a. Mid-Lochkovian Brachiopods from the Windmill Limestone of Central Nevada. Journal of Paleontology, 47(6):1013–1030, 5 plates.

1973b. Some North American Rensselandiid Brachiopods, Part 2. Journal of Paleontology, 47(6):1102–1107, 2 plates.

1973c. Late Early Devonian Rhynchonellid Genera from Arctic and Western North America. Journal of Paleontology, 47(3):465–472, 3 plates.

1974. Middle Devonian Givetian Brachiopods from the Leiorhynchus castanea Zone of Nevada. Geologica el Palaeontologica, 8:49–96, 7 figures, 12 plates.

1975. Late Early Devonian Brachiopods from the Disappointment Bay Formation, Lowther Island, Arctic Canada. Journal of Paleontology, 49(6):947–978, 9 figures, 10 plates.

1976. Chattertonia N. Gen. (Brachiopoda) the Chonetid-Productid Link. Journal of Paleontology, 50(5):789–791.

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1967. Gracianella, a New Late Silurian Genus of Atrypoid Brachiopods. Journal of Paleontology, 41(4):868–873, 2 plates.

Johnson, J. G., A. J. Boucot, and E. C. Gronberg

1968. A New Genus of Stringocephaloid Brachiopod from the Middle Devonian of Nevada. Journal of Paleontology, 42(2) 406–414.

Johnson, J. G., A. J. Boucot, and M. A. Murphy

1976. Wenlockian and Ludlovian Age Brachiopods from the Roberts Mountains Formation of Central Nevada. University of California Publications in Geological Sciences, 115:1–102, 55 plates.

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1962. The Genera of the Brachiopod Superfamilies Obolellacea and Siphonotretacea. Journal of Paleontology, 36(1):136–152, 2 plates.

1963. Some Nomenclatural Problems in the Inarticulate Brachiopods. Geological Magazine, 100(1):33–43.

1966. Revision of Some Cambrian and Ordovician Inarticolate Brachiopods. University of Kansas Paleontological Contributions, 7:1 36, 33 figures, 4 plates.

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1978. New Genera of Acrotretids from the Cambrian of Australia and the United States. University of Kansas Paleontological Contributions, 93:1–12, 2 plates.

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1970. “Curvate Spiriferen” der Gattung Rhenothyris und einige andere Reticulariidae aus dem rheinischen Devon. Senckenbergiana Lethaea, 51(5/6)449–577, 12 figures, 15 plates.

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1855. Ueber Meganteris, eine neue Gattung von Terebratuliden. Akademie der Wissenschaften Wien, Mathematische-Naturwissenschaftliche Klasse, Denkschriften, 18:51–64, 3 plates.

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1973. Pennsylvanian Brachiopods and Biostratigraphy in Southern Sangre de Cristo Mountains, New Mexico. New Mexico Bureau of Mines and Mineral Resources, Memoir, 27:1–173, 18 plates.

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1956. Devonian Brachiopods and Pelecypods of the Buchan Caves Limestone, Victoria. Royal Society of Victoria, Proceedings, new series, 68:1–56, 15 figures, 5 plates.

1963. The Devonian of the Mitchell and Wentworth Rivero. Geological Survey of Victoria, Memoirs, 24:1–118, 78 plates.

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1965. Upper Ordovician Brachiopods from Poland and Britain. Acta Palaeontologia Polonica, 10(3):379–427, 3 figures, 21 plates.

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1958. The Permian Orthotetacea of Western Australia. Australia Bureau of Mineral Resources, Geology and Geophysics. Bulletin, 39:1–115, 10 figures, 22 plates.

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1915b. The Genera of Recent and Tertiary Rhynchonellids. Geological Magazine (London), 2:387–392.

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1915d. Brachiopod Genera: The Position of Shells with Magaselliform Loops, and of Shells with Bouchardiform Beak Characters. New Zealand Institute, Transactions and Proceedings, 47:392–403.

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1918. Australasian Antarctic Expedition, 1911–14, under the Leadership of Sir Douglas Mawson, D.Sc., BE., Brachiopoda. Scientific Reports, series C, 4(3): 1–76, 4 plates.

1920. The Notocene Geology of the Middle Waipara and Weka Pass District, North Canterbury, New Zealand. New Zealand Institute, Transactions and Proceedings, 52:322–415, 9 figures, plates 16–27.

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1958a. On Some Terebratuloids from the Late Jurassic Torinosu Series in Shikoku, Japan. Japanese Journal of Geology and Geography, 29(1–3):119–131, 1 plate.

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__________________

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