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Perrinites (Cephalopoda, Ammonoidea) in the Lower Permian of California: Paleontological Notes

Published online by Cambridge University Press:  14 July 2015

Edward C. Wilson
Edward C. Wilson*
Affiliation:
Natural History Museum of Los Angeles County, Los Angeles, California 90007
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Extract

A specimen of the ammonoid Perrinites Böse, 1919, was collected from the McCloud Limestone east of the summit of Tombstone Mountain, Shasta County, California. This is the first record of the genus in California, an important addition to the meager Permian cephalopod fauna of the state previously reported by Miller, Furnish, and Clark (1957) and Wilson (1984). It was found 1,100 feet (335 m) above the base of the formation in a coarse-grained limestone (Los Angeles County Museum of Natural History, Invertebrate Paleontology Section locality 6184) within fusulinid zone H of Skinner and Wilde (1965), considered to be late early or early middle Leonardian in age.

Type
Paleontological Notes
Information
Journal of Paleontology , Volume 60 , Issue 5 , September 1986 , pp. 1133
Copyright
Copyright © The Paleontological Society 

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References

Böse, Emil. 1919. The Permo-Carboniferous ammonoids of the Glass Mountains, West Texas, and their stratigraphical significance. Texas University Bulletin, 1762:1–241.Google Scholar
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Skinner, J. W. and Wilde, G. L. 1965. Permian biostratigraphy and fusulinid faunas of the Shasta Lake area, northern California. University of Kansas Paleontological Contributions, Protozoa, 6:1–98.Google Scholar
Smith, J. P. 1903. The Carboniferous ammonoids of America. U.S. Geological Survey Monograph 42:1–211.Google Scholar
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Wilson, E. C. 1984. The goniatite Agathiceras (Mollusca: Cephalopoda) in the Lower Permian (Wolfcampian) of California. Journal of Paleontology, 58(1):277–278.Google Scholar