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Early Permian Fusulinids from the Owens Valley Group, east-central California

By
Robert T. Magginetti
Robert T. Magginetti
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Calvin H. Stevens
Calvin H. Stevens
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Paul Stone
Paul Stone
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Published:
January 01, 1988

Sixty fusulinid species, 17 of which are newly named, are herein described from the Lower Permian part of the Owens Valley Group in east-central California. These consist of 2 species of Triticites, 1 of Leptotriticites, 16 of Schwagerina, 1 of Pseudofusulina, 3 of Chusenella, 1 of Paraschwagerina, 9 of Stewartina, 6 of Pseudoschwagerina, 3 of Chalaroschwagerina, 6 of Cuniculinella, 3 of Eoparafusulina, and 6 of Parafusulina. In addition, a new genus, Reticulosepta (with three species), is described.

The fusulinid fauna of the Owens Valley Group contains some elements of the Pseudoschwagerina association of the Texas-Cordilleran region and a few species similar to those of the Chalaroschwagerina association of the eastern Klamath Mountains. In addition, several species apparently are endemic. Most of the fusulinids are from sediment-gravity-flow deposits in which there was apparently a great deal of mixing of faunas from different coexistent environments. In general, however, there is little evidence of mixing through reworking of older faunas, which has allowed biostratigraphic subdivision of the Lower Permian part of the Owens Valley Group based on fusulinids. The subunits recognized—lower Wolfcampian, middle Wolfcampian, upper Wolfcampian, and Leonardian—are comparable to subunits of the Lower Permian based on fusulinids in other parts of North America.

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GSA Special Papers

Early Permian Fusulinids from the Owens Valley Group, east-central California

Robert T. Magginetti
Robert T. Magginetti
Search for other works by this author on:
Calvin H. Stevens
Calvin H. Stevens
Search for other works by this author on:
Paul Stone
Paul Stone
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Geological Society of America
Volume
217
ISBN print:
9780813722177
Publication date:
January 01, 1988

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