Smithsonian Digital RepositoryThe DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.http://repository.si.edu:80822024-03-28T16:32:27Z2024-03-28T16:32:27ZA new amphibamiform from the Early Permian of Texas elucidates patterns of cranial diversity among terrestrial amphibamiformsSo, CalvinPardo, Jason D.Mann, Arjanhttps://hdl.handle.net/10088/1187682024-03-28T01:33:14Z2024-01-01T00:00:00ZA new amphibamiform from the Early Permian of Texas elucidates patterns of cranial diversity among terrestrial amphibamiforms
So, Calvin; Pardo, Jason D.; Mann, Arjan
Amphibamiform temnospondyls are at the forefront of discourse surrounding modern amphibian evolutionary origins. Here we present a new amphibamiform, Kermitops gratus gen. et sp. nov., from the Lower Clear Fork Formation of the Early Permian of Texas. Kermitops reveals a mosaic of features shared with other amphibamiforms and possesses unique characteristics, including an internarial fontanelle formed by the premaxillae without contribution of the nasals. It possibly possesses a basioccipital that contributes to the occipital condyle, which has significant implications for recent hypotheses of the evolution of the modern amphibian neurocranium. Parsimony analyses recover non-traditional amphibamiform relationships but place Kermitops within Amphibamiformes. Bayesian inference analysis captures a more traditional hypothesis of amphibamiform relationships; however, the time-calibrated analysis under the fossilized birth–death model recovers a topology that mirrors the parsimony topologies. The low robusticity of topologies across different permutations employing traditional and modern methods suggest a need for improvement of current morphological datasets of lissamphibian origins. A morphometric analysis of the crania of terrestrial amphibamiforms reveals the evolution of disparate cranial morphologies among coeval taxa from the Early Permian of Texas.
2024-01-01T00:00:00ZCatalog of Type Specimens of Recent Caudata and Gymnophiona in the National Museum of Natural History, Smithsonian InstitutionTighe, Kenneth A.https://hdl.handle.net/10088/1187692024-03-28T01:33:14Z2022-01-01T00:00:00ZCatalog of Type Specimens of Recent Caudata and Gymnophiona in the National Museum of Natural History, Smithsonian Institution
Tighe, Kenneth A.
The known type specimens of Caudata and Gymnophiona in the collection of the Division of Amphibians and Reptiles, National Museum of Natural History, Smithsonian Institution, published through 2021, represent 288 names of taxa. The list is arranged alphabetically by family within Caudata and Gymnophiona and alphabetically by genus and species, as described originally within family. Each entry provides both original and current accepted genus and species names, author(s), date of publication, abbreviated type citation, page of original description, current type status, USNM (U.S. National Museum) catalog number, number of specimens, locality, collector, and date collected. Also included for each taxon are the published type locality; type material at other institutions; an etymology; and remarks on corrections or additional data for original type records, changes in type status, and information pertaining to lost, exchanged, or destroyed specimens. An index of scientific names follows the catalog.
2022-01-01T00:00:00ZPriority research needs to inform amphibian conservation in the AnthropoceneCampbell Grant, Evan H.Amburgey, Staci M.Gratwicke, BrianChaves, Victor AcostaBelasen, Anat M.Bickford, DavidBruehl, Carsten A.Calatayud, Natalie E.Clemann, NickClulow, SimonCrnobrnja-Isailovic, JelkaDawson, JeffDe Angelis, David A.Dodd,C. Kenneth, Jr.Evans, AnnetteFicetola, Gentile FrancescoFalaschi, MattiaGonzalez-Mollinedo, SergioGreen, David M.Gamlen-Greene, RoseannaGriffiths, Richard A.Halstead, Brian J.Hassapakis, CraigHeard, GeoffreyKarlsson, CatharinaKirschey, TomKlocke, BlakeKosch, Tiffany A.Novaes, Sophia KusterkoLinhoff, LukeMaerz, John C.Mosher, Brittany A.O'Donnell, KatherineOchoa-Ochoa, Leticia M.Olson, Deanna H.Ovaska, KristiinaRoberts, J. DaleSilla, Aimee J.Stark, TariqTarrant, JeanneUpton, R.Voros, JuditMuths, Erinhttps://hdl.handle.net/10088/1187642024-03-28T01:33:13Z2023-01-01T00:00:00ZPriority research needs to inform amphibian conservation in the Anthropocene
Campbell Grant, Evan H.; Amburgey, Staci M.; Gratwicke, Brian; Chaves, Victor Acosta; Belasen, Anat M.; Bickford, David; Bruehl, Carsten A.; Calatayud, Natalie E.; Clemann, Nick; Clulow, Simon; Crnobrnja-Isailovic, Jelka; Dawson, Jeff; De Angelis, David A.; Dodd,C. Kenneth, Jr.; Evans, Annette; Ficetola, Gentile Francesco; Falaschi, Mattia; Gonzalez-Mollinedo, Sergio; Green, David M.; Gamlen-Greene, Roseanna; Griffiths, Richard A.; Halstead, Brian J.; Hassapakis, Craig; Heard, Geoffrey; Karlsson, Catharina; Kirschey, Tom; Klocke, Blake; Kosch, Tiffany A.; Novaes, Sophia Kusterko; Linhoff, Luke; Maerz, John C.; Mosher, Brittany A.; O'Donnell, Katherine; Ochoa-Ochoa, Leticia M.; Olson, Deanna H.; Ovaska, Kristiina; Roberts, J. Dale; Silla, Aimee J.; Stark, Tariq; Tarrant, Jeanne; Upton, R.; Voros, Judit; Muths, Erin
The problem of global amphibian declines has prompted extensive research over the last three decades. Initially, the focus was on identifying and characterizing the extent of the problem, but more recently efforts have shifted to evidence-based research designed to identify best solutions and to improve conservation outcomes. Despite extensive accumulation of knowledge on amphibian declines, there remain knowledge gaps and disconnects between science and action that hamper our ability to advance conservation efforts. Using input from participants at the ninth World Congress of Herpetology, a U.S. Geological Survey Powell Center symposium, amphibian on-line forums for discussion, the International Union for Conservation of Nature Assisted Reproductive Technologies and Gamete Biobanking group, and respondents to a survey, we developed a list of 25 priority research questions for amphibian conservation at this stage of the Anthropocene. We identified amphibian conservation research priorities while accounting for expected tradeoffs in geographic scope, costs, and the taxonomic breadth of research needs. We aimed to solicit views from individuals rather than organizations while acknowledging inequities in participation. Emerging research priorities (i.e., those under-represented in recently published amphibian conservation literature) were identified, and included the effects of climate change, community-level (rather than single species-level) drivers of declines, methodological improvements for research and monitoring, genomics, and effects of land-use change. Improved inclusion of under-represented members of the amphibian conservation community was also identified as a priority. These research needs represent critical knowledge gaps for amphibian conservation although filling these gaps may not be necessary for many conservation actions.
2023-01-01T00:00:00ZForewordRobinson, Chase F.https://hdl.handle.net/10088/1187672024-03-28T01:33:14Z2023-01-01T00:00:00ZForeword
Robinson, Chase F.
Feltens, Frank
2023-01-01T00:00:00Z