Browsing Department of Paleobiology by Author "Nelson, W. John"

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The biota and paleoecology of the Upper Pennsylvanian (Missourian) Tinajas Locality, Socorro County, New Mexico

Lerner, A. J.; Lucas, Spencer G.; Spielmann, J. A.; Krainer, K.; DiMichele, William A.; Chaney, Dan S.; Schneider, J. W.; Nelson, W. John; Ivanov, Anton B. (2009)
Catastrophically Buried Middle Pennsylvanian Sigillaria and Calamitean Sphenopsids from Indiana, Usa: what Kind of Vegetation was This?

DiMichele, William A.; Nelson, W. John; Elrick, Scott; Ames, Philip R. (2009)

A catastrophically buried stand of calamitean sphenopsids and sigillarian lycopsids is reported from the Middle Pennsylvanian of southwestern Indiana, in the Illinois Basin. The plants were exposed in the highwall of a ...
Evolution of a PeatContemporaneous Channel: The Galatia Channel, Middle Pennsylvanian, of the Illinois Basin

Nelson, W. John; Elrick, Scott D.; DiMichele, William A.; Ames, Philip R. (2020)

For more than 40 years, geologists have understood that the thickness and quality of the Springfield Coal are intimately related to the Galatia channel, a paleochannel that existed contemporaneously with peat deposition. ...
Incised channel fills containing conifers indicate that seasonally dry vegetation dominated Pennsylvanian tropical lowlands

Falcon-Lang, Howard J.; Nelson, W. John; Elrick, Scott; Looy, Cindy V.; Ames, Philip R.; DiMichele, William A. (2009)

The idea that the Pennsylvanian tropical lowlands were temporally dominated by rainforest (i.e., the Coal Forest) is deeply ingrained in the literature. Here we challenge two centuries of research by suggesting that this ...
Lithostratigraphy, biostratigraphy and sedimentology of the Upper Paleozoic Sangre De Cristo Formation, southwestern San Miguel County, New Mexico

Lucas, Spencer G.; Krainer, Karl; Dimichele, William A.; Voigt, Sebastian; Berman, David S.; Henrici, Amy C.; Tanner, Lawrence H.; Chaney, Dan S.; Elrick, Scott D.; Nelson, W. John; Rinehart, Larry F. (New Mexico Geological Society, 2015)
No Major Stratigraphic Gap Exists Near the Middle-Upper Pennsylvanian (Desmoinesian-Missourian) Boundary in North America

Falcon-Lang, Howard J.; Heckel, Philip H.; DiMichele, William A.; Blake, Bascombe M.; Easterday, Cary R.; Eble, Cortland F.; Elrick, Scott; Gastaldo, Robert A.; Greb, Stephen F.; Martino, Ronald L.; Nelson, W. John; Pfefferkorn, Hermann W.; Phillips, Tom L.; Rosscoe, Steven J. (2011)

Interregional correlation of the marine zones of major cyclothems between North America and eastern Europe does not support assertions that a major stratigraphic gap exists between the traditional regional Desmoinesian and ...
Palaeoecology of <I>Macroneuropteris scheuchzeri</I>, and its implications for resolving the paradox of 'xeromorphic' plants in Pennsylvanian wetlands

Stull, Gregory W.; DiMichele, William A.; Falcon-Lang, Howard; Nelson, W. John; Elrick, Scott (2012)

The medullosan pteridosperm Macroneuropteris scheuchzeri (Hoffmann) Cleal, Shute & Zodrow was widespread and abundant in the Middle to Late Pennsylvanian forests of tropical Pangaea. On the basis of its thick cuticles, ...
Pennsylvanian coniferopsid forests in sabkha facies reveal the nature of seasonal tropical biome

Falcon-Lang, Howard J.; Jud, Nathan A.; Nelson, W. John; DiMichele, William A.; Chaney, Dan S.; Lucas, Spencer G. (2011)
Pennsylvanian-Age Cordaitalean Wood from Knoxville, Iowa

Nelson, W. John; DiMichele, William A.; Wilson, Bob; Wilson, Doug; Lakeram, Scott R.; Elrick, Scott D. (2022)

The remains of fossilized cordaitalean trees were discovered in the middle of the 20th century in surface and underground mines in south-central Iowa, in the vicinity of the town of Knoxville. With some uncertainty, the ...
Vegetational zonation in a swamp forest, Middle Pennsylvanian, Illinois Basin, U.S.A., indicates niche differentiation in a wetland plant community

DiMichele, William A.; Elrick, Scott D.; Nelson, W. John (2017)

A rich fossil flora occurs in the roof shale of the Middle Pennsylvanian (Moscovian) age, Springfield Coal flanking the Galatia channel, a river deposit approximately 1 km in width and 150 km long, partially contemporaneous ...

Browsing Department of Paleobiology by Author "Nelson, W. John"

Browsing Department of Paleobiology by Author "Nelson, W. John"

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