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New early Eocene marine gastropods from Baja California Sur, Mexico

Published online by Cambridge University Press:  20 May 2016

Richard L. Squires  and
Robert Demetrion
Richard L. Squires
Affiliation:
Department of Geological Sciences, California State University, Northridge 91330
Robert Demetrion
Affiliation:
Department of Geological Sciences, University of Southern California, Los Angeles 90007
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Abstract

Three gastropod species are described from a previously unknown shallow-marine molluscan fauna in the lower Eocene Bateque Formation, southwest of San Ignacio, Baja California Sur, Mexico. Velates batequensis n. sp., a commonly occurring neritid in the Bateque, is the only ribbed Velates known from the Western Hemisphere. The fairly rare Platyoptera pacifica n. sp. is the earliest record of this strombid genus and its first occurrence on the west coast of North America. The very rare Cypraedia sp. is also the first occurrence of this cypraeid-like genus on the west coast of North America.

Type
Research Article
Information
Journal of Paleontology , Volume 64 , Issue 1 , January 1990 , pp. 99 - 103
Copyright
Copyright © The Paleontological Society 

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