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Emended restoration of Titanocrinus sumralli Guensburg and Sprinkle, 2003 (Echinodermata, Crinoidea)

Published online by Cambridge University Press:  11 August 2017

Thomas E. Guensburg  and
James Sprinkle
Thomas E. Guensburg
Affiliation:
Physical Science Division, Rock Valley College, 3301 N. Mulford Road, Rockford, Illinois, 61114, USA,
James Sprinkle
Affiliation:
Department of Geological Sciences, Jackson School of Geosciences, University of Texas, 1 University Station C1100, Austin, 78712–0254,
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Abstract

We provide clarification of the nature of the junction between cup and arms in Titanocrinus sumralli Guensberg and Sprinkle 2003, accompanied by an emended reconstruction. This morphological feature of so basal a species informs further phylogenetic studies.

Type
Research Article
Information
Journal of Paleontology , Volume 84 , Issue 3 , May 2010 , pp. 566 - 568
Copyright
Copyright © 2010, The Paleontological Society 

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References

Guensburg, T. E. and Sprinkle, J. 2003. The oldest known crinoids (Early Ordovician, Utah) and a new crinoid plate homology system. Bulletins of American Paleontology, number 364, 43 p.Google Scholar
Guensburg, T. E. and Sprinkle, J. 2009. Solving the mystery of crinoid ancestry: New fossil evidence of arm origin and development. Journal of Paleontology, 83: 350–364.CrossRefGoogle Scholar