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A diverse Rancholabrean vertebrate microfauna from southern California includes the first fossil record of ensatina (Ensatina eschscholtzii: Plethodontidae)

Published online by Cambridge University Press:  20 January 2017

Thomas A. Wake  and
Mark A. Roeder
Thomas A. Wake*
Affiliation:
Zooarchaeology Laboratory, The Cotsen Institute of Archaeology at UCLA, A-210 Fowler, 405 Hilgard Ave., University of California, Los Angeles, CA 90095-1510, USA
Mark A. Roeder
Affiliation:
Department of Paleontology, San Diego Natural History Museum, P.O. Box 131290, San Diego, CA 92112, USA
*
⁎Corresponding author. Fax: +1 310 206 4723. E-mail address:[email protected] (T.A. Wake).
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Abstract

Analysis of late Pleistocene fossils recovered from near the Huntington Beach, California (USA), pier (site LACM 7679) has revealed a diverse fauna dating to approximately 40 14C ka BP. Extinct megafauna (three genera) are present; however, a microfauna including three genera of fish, five genera of amphibians, twelve genera of reptiles, two genera of birds, and ten genera of small mammals dominates the assemblage in terms of diversity. Additional identification of seven genera of non-marine mollusks and various macro- and microscopic plant remains including grasses, three families of herbs, and seven genera of trees provides a wealth of information concerning the past ecology of what is currently a coastal dune field complex. During the Rancholabrean Period, the LACM 7679 locality was approximately 10 km inland from the Pleistocene coastline and contained lush riparian zones interspersed with coastal sage scrub, a few trees, and grasslands teeming with a variety of small and large animals.

Keywords

Southern CaliforniaRancholabreanPleistocenePaleoecologyMicrofaunaHerpetologyRiparian ZoneEnsatinaBatrachoseps
Type
Research Article
Information
Quaternary Research , Volume 72 , Issue 3 , November 2009 , pp. 364 - 370
Copyright
University of Washington

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