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Microsyopsinae and Hyopsodontidae in the Sespe Upper Eocene, California

Stock, Chester (1934) Microsyopsinae and Hyopsodontidae in the Sespe Upper Eocene, California. Proceedings of the National Academy of Sciences of the United States of America, 20 (6). pp. 349-354. ISSN 0027-8424.

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Occurring in association with the recently described tarsiid,(1) Dyseolemur pacificus, in the Eocene deposits, north of the Simi Valley, California, is a new genus of the subfamily Microsyopsine and a new species of the genus Hyopsodus. Aside from the interest inherent in the new types, the presence of these forms gives added reason for regarding the faunal assemblages now being uncovered at locality 180 and stratigraphically related localities in the Sespe as definitely older than that known from locality 150. Moreover, these types suggest again a post-Bridger and an upper Eocene age for this stage in the succession of faunal horizons of the Sespe.

Item Type:Article
Additional Information:Copyright © 1934 by the National Academy of Sciences. Communicated April 26, 1934.
Issue or Number:6
Record Number:CaltechAUTHORS:STOpnas34
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3628
Deposited By: Tony Diaz
Deposited On:22 Jun 2006
Last Modified:02 Oct 2019 23:05

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