San Antonio Formation Explained

San Antonio Formation
Type:	Formation
Age:	Mid-late Pleistocene (Irvingtonian) ~
Period:	Pleistocene
Region:	Alameda County, California
Country:	United States
Coordinates:	37.8°N -122.1°W

The San Antonio Formation is a middle to late Pleistocene (Irvingtonian in the NALMA classification) geologic formation in California. It preserves fossils.^[1]

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

Further reading

• R. W. Casteel and J. H. Hutchison. 1973. Orthodon (Actinopterygii, Cyprinidae) from the Pliocene and Pleistocene of California. Copeia 2:358-361

Notes and References

1. https://paleobiodb.org/classic/displayCollResults?collection_no=20431 San Antonio Formation