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New Late Cretaceous gastropods from the Pacific slope of North America

Published online by Cambridge University Press:  20 May 2016

Richard L. Squires  and
Louella R. Saul
Richard L. Squires
Affiliation:
Department of Geological Sciences, California State University, Northridge 91330–8266,
Louella R. Saul
Affiliation:
Invertebrate Paleontology Section, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007,
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Abstract

Two new genera and ten new species of shallow-marine, warm-water gastropods are reported from several Upper Cretaceous formations found between British Columbia and southern California. The buccinid Zaglenum new genus is represented by two new species and the turbinellid Fimbrivasum new genus is represented by three new species. The nododelphinulid Trochacanthus pacificus new species is the first record of this genus in the Western Hemisphere, and the procerthiid Nudivagus? califus new species could be the first record of this genus on the Pacific slope of North America. The xenophorid Xenophora (Endoptygma) hermax new species is only the second known Cretaceous species of this genus on the Pacific slope of North America, and this species establishes that Endoptygma Gabb, 1877, is a valid taxon. The neritid Otostoma sharonae new species is only the fourth known Cretaceous species of this genus on the Pacific slope of North America. The ringiculid Ringicula? (Ringiculopsis?) hesperiae new species is the first Campanian record of this genus on the Pacific slope of North America and the first recognition of this subgenus in this area.

Type
Research Article
Information
Journal of Paleontology , Volume 75 , Issue 1 , January 2001 , pp. 46 - 65
Copyright
Copyright © The Paleontological Society

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