Also known as Rock Creek, Big Rock Creek

Where: Los Angeles County, California (34.4° N, 117.8° W: paleocoordinates 38.1° N, 98.3° W)

• coordinate based on political unit

When: San Francisquito Formation, Thanetian (59.2 - 56.0 Ma)

Environment/lithology: open shallow subtidal; lithified, quartzose, gray sandstone and shale

Size class: macrofossils

Collected by R. E. Dickerson, Emerson Butterworth, Edward Brainerd; reposited in the UCMP

Primary reference: R. E. Dickerson. 1914. The Martinez Eocene and associated formations at Rock Creek on the western border of the Mohave Desert area. University of California Publications Bulletin of the Department of Geology 8(14):289-298 [J. Marcot/J. Marcot/P. Holroyd]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 205393: authorized by Mark Uhen, entered by Mark Uhen on 14.10.2019, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)