The San Antonio Formation is a middle to late Pleistocene (Irvingtonian in the NALMA classification) geologic formation in California. It preserves fossils.San Antonio Formation at Fossilworks.org
Fossil content
Equus sp. Odocoileus sp. Orthodon sp. Rana sp. Taricha sp. Aves indet. Colubridae indet. Emydinae indet. Sciuridae indet.
See also
List of fossiliferous stratigraphic units in California Paleontology in California
References
Further reading R. W. Casteel and J. H. Hutchison. 1973. Orthodon (Actinopterygii, Cyprinidae) from the Pliocene and Pleistocene of California. Copeia 2:358-361