Where: Contra Costa County, California (37.8° N, 121.8° W: paleocoordinates 37.4° N, 119.6° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Late/Upper Miocene to Late/Upper Miocene (11.6 - 2.6 Ma)

Environment/lithology: fluvial; poorly lithified, pebbly conglomerate

Size class: macrofossils

Reposited in the UCMP

Primary reference: R. A. Stirton. 1939. Cenozoic Mammal Remains From the San Francisco Bay Region. University of California Publications, Bulletin of the Department of Geological Sciences 24(13):339-410 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 19142: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)