Where: Riverside County, California (33.9° N, 117.0° W: paleocoordinates 33.3° N, 113.2° W)

• coordinate based on political unit

When: Lake Mathews Formation, Clarendonian (12.5 - 9.4 Ma)

• said to be Clarendonian

Environment/lithology: terrestrial

Primary reference: R. J. Proctor and T. Downs. 1963. Stratigraphy of a new formation containing early Pliocene vertebrates at Lake Mathews, near Riverside, California. Geological Society of America Special Paper 73:59 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 19417: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)