Also known as LACMIP 23960

Where: Contra Costa County, California (37.9° N, 121.8° W: paleocoordinates 43.9° N, 97.6° W)

• coordinate estimated from map

When: Late/Upper Maastrichtian (70.6 - 66.0 Ma)

Environment/lithology: marine; lithified sandstone and conglomerate

Size class: macrofossils

Preservation: coquina

Collected by W. P. Popenoe in 1944; reposited in the LACM

Primary reference: L. R. Saul. 1989. California Late Cretaceous donaciform bivalves. The Veliger 32(2):188-208 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 210291: authorized by Jonathan Marcot, entered by Jonathan Marcot on 28.05.2020

Creative Commons license: CC BY (attribution)