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New Paleogene Fimbria (Mollusca: Bivalvia) from the Pacific Coast of southwestern North America

Published online by Cambridge University Press:  14 July 2015

Richard L. Squires
Richard L. Squires*
Affiliation:
Department of Geological Sciences, California State University, Northridge 91330
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Abstract

The marine bivalve Fimbria susanensis n. sp. is reported from the uppermost Paleocene part of the “Meganos Stage” in the upper Santa Susana Formaton, Simi Hills, southern California.

Fimbria pacifica n. sp. is reported from the middle lower Eocene “Capay Stage” strata of the Pacific coast of southwestern North America. The new species is present in the lower Bateque Formation, Baja California Sur, Mexico, and in the lower Juncal Formation, Whitaker Peak area and Santa Ynez Mountains, southern California.

Fimbria susanensis n. sp. and F. pacifica n. sp. are the only fimbriids known from the Pacific coast of North America. Previously reported Pacific coast species, which gave a range of Late Cretaceous to late Eocene for this genus in this particular area, do not belong to Fimbria.

Type
Research Article
Information
Journal of Paleontology , Volume 64 , Issue 4 , July 1990 , pp. 552 - 556
Copyright
Copyright © The Paleontological Society 

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