Where: California (34.1° N, 118.2° W)

• Paleocoordinates: 34.8° N, 116.6° W (Wright 2013)

When: Pliocene (5.3 - 2.6 Ma)

Environment/lithology: marine; blue claystone

Size class: macrofossils

Collected by J.Z. Gilbert in 1914; reposited in the USNM

• Los Angeles, type-locality for R. urbanus: carapace embedded in blue clay, Cat. No. 324300 USNM

Primary reference: M. J. Rathbun. 1917. Description of a new species of crab from the California Pliocene. Proceedings of the United States National Museum 53(2214):451-452 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139721: authorized by Carrie Schweitzer, entered by Samantha Yost on 16.02.2013, edited by Jonathan Marcot

Creative Commons license: CC0 (CC0)