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Fossil Plethodontid Salamanders from the Latest Miocene of California
James M. Clark
Journal of Herpetology
Vol. 19, No. 1 (Mar., 1985), pp. 41-47
Published by: Society for the Study of Amphibians and Reptiles
Stable URL: http://www.jstor.org/stable/1564418
Page Count: 7
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Two salamanders, Aneides lugubris, and Batrachoseps sp., are reported from the latest Miocene (Hemphillian) upper Mehrten Formation of the western Sierra Nevada foothills of California. A record of Batrachoseps sp. is also reported here from the Pinole Tuff of the same age in the San Francisco Bay area of California. These are the second Tertiary records of plethodontid remains and the first from west of the Rocky Mountains. The minimum age of Aneides lugubris, and the Sierra Nevada population in particular, is established at approximately five million years. This is consistent with the estimated longevity of this species based on biochemical evidence and modifies a previous biogeographic speculation.
Journal of Herpetology © 1985 Society for the Study of Amphibians and Reptiles