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Redescription of Spirodentalium Walcott (Gastropoda: Late Cambrian) from Wisconsin

Published online by Cambridge University Press:  14 July 2015

Ellis L. Yochelson
Ellis L. Yochelson*
Affiliation:
U.S. Geological Survey, Washington, D.C. 20560
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Abstract

Spirodentalium Walcott, 1890, was originally described as a scaphopod. A reinterpretation of the type lot suggests that its overall shape is that of an open-coiled gastropod. If so, this is probably the earliest known open-coiled form and it is sinistral in coiling direction.

Type
Research Article
Information
Journal of Paleontology , Volume 61 , Issue 1 , January 1987 , pp. 66 - 69
Copyright
Copyright © The Paleontological Society 

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References

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