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Micromorph crinoid fauna of the McCraney Limestone (Mississippian, Kinderhookian) of western Illinois

Published online by Cambridge University Press:  19 May 2016

N. Gary Lane  and
G. D. Sevastopulo
N. Gary Lane
Affiliation:
Department of Geology, Indiana University, Bloomington 47405
G. D. Sevastopulo
Affiliation:
Department of Geology, Trinity College Dublin, Dublin 2, Ireland
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Abstract

A low diversity fauna of microscopic crinoids from the Kinderhookian (Mississippian) McCraney Limestone at Seehorn Hollow, western Illinois, is described and illustrated by stereomicrographs. The crinoids include first record of the camerate crinoid genus Hexacrinites (H. mississippiensis n. sp.) above the Devonian. The other three taxa are all inadunates and include the monocyclic microcrinoid Allagecrinus mccraneyensis n. sp., which has up to 14 arms, and two dicyclic poteriocrinoids, Hypselocrinus maccabei (Miller and Gurley, 1894) and an indeterminate genus of the Scytalocrinidae.

Type
Research Article
Information
Journal of Paleontology , Volume 60 , Issue 3 , May 1986 , pp. 736 - 743
Copyright
Copyright © The Paleontological Society 

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