about 4 mi S of Martinez and east of the road to Walnut Creek (Eocene of the United States)

Where: Contra Costa County, California (38.0° N, 122.1° W: paleocoordinates 38.8° N, 108.0° W)

When: Martinez Formation, Eocene (56.0 - 33.9 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: M. J. Rathbun. 1926. The Fossil Stalk-Eyed Crustacea of the Pacific Slope of North America. Smithsonian Institution United States National Museum [C. Schweitzer/S. Yost/S. Yost]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 139006: authorized by Carrie Schweitzer, entered by Samantha Yost on 07.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Euryplacidae
Orbitoplax weaveri Rathbun 1926 crab