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Neoisorophusella, a new edrioasteroid genus from the Upper Mississippian of the eastern United States

Published online by Cambridge University Press:  14 July 2015

Thomas W. Kammer
Affiliation:
Department of Geology and Geography, West Virginia University, Morgantown 26506
Eric C. Tissue
Affiliation:
Department of Geology and Geography, West Virginia University, Morgantown 26506
Mark A. Wilson
Affiliation:
Department of Geology, The College of Wooster, Wooster, Ohio 44691

Abstract

Isorophid edrioasteroids representing a new genus and two new species are described from the Chesterian (Upper Mississippian) of Illinois and Maryland. Neoisorophusella lanei occurs in the Kinkaid Limestone of Johnson County, Illinois, and N. berryi occurs in the Greenbrier Limestone of Garrett County, Maryland. The problematic edrioasteroid species Hemicystites? carbonarius Bassler, 1935, from the Chesterian of southern West Virginia, is questionably assigned to Neoisorophusella.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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