Also known as LACMIP loc. 23959

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

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Turritella chicoensis holzana other zone, Deer Valley Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

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

Collection methods: surface (in situ),

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 177887: authorized by Pete Wagner, entered by Pete Wagner on 11.04.2016, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)