Contrasting Feeding Strategies Recorded by Bivalve Trace Fossils from the Upper Carboniferous (Pennsylvanian) of Eastern Kansas

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Trace-element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems

The black shale submember of core shales of Pennsylvanian Kansas-type cyclothems is highly enriched in redox-sensitive trace elements (TEs) relative to the overlying gray shale submember as well as to many other modern and ancient organic-rich deposits. Controls on trace-element behavior in the black shale can be inferred from trace-element enrichment factors (EFs, relative to gray shale) and t...

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An Early Captorhinid Reptile (amniota, Eureptilia) from the Upper Carboniferous of Hamilton, Kansas

A new eureptile, Concordia cunninghami, gen. et sp. nov., is described from the Upper Pennsylvanian Hamilton-Fossillagerstätte, Kansas, U.S.A. The new taxon is currently known on the basis of two well-preserved skulls. A phylogenetic analysis groups Concordia consistently with captorhinids; the holotype, therefore, can be regarded as the oldest record of a captorhinid reptile, and the first one...

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ژورنال

عنوان ژورنال: The Paleontological Society Special Publications

سال: 1996

ISSN: 2475-2622,2475-2681

DOI: 10.1017/s2475262200002616