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Browsing by Author "Nelson, W. John"
Now showing items 1-14 of 14
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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)
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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 ...
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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. ...
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Calder, John H.; Nelson, W. John; Bashforth, Arden R.; Wittry, Jack; Elrick, Scott D.; DiMichele, William A. (2023)Four collections of Middle Pennsylvanian plant fossils create an opportunity to examine a transect from below the Colchester Coal through the roof shale of the Cardiff (Survant) Coal of the Illinois Basin. The collections ...
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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 ...
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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)
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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 ...
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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, ...
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DiMichele, William A.; Eble, Cortland F.; Nelson, W. John; Pfefferkorn, Hermann W.; Elrick, Scott D. (2023)The Corinth Coal bed is a recently recognized stratigraphic unit in the lower part of the Upper Pennsylvanian Patoka Formation of the Illinois Basin, located between the underlying Chapel Coal and overlying Womac Coal in ...
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Falcon-Lang, Howard J.; Jud, Nathan A.; Nelson, W. John; DiMichele, William A.; Chaney, Dan S.; Lucas, Spencer G. (2011)
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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 ...
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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 ...
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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)
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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 ...
Now showing items 1-14 of 14
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