USGS Mesozoic loc. 3143 (Jurassic of the United States)

Where: California (40.1° N, 120.8° W: paleocoordinates 34.9° N, 62.2° W)

• coordinate based on nearby landmark

When: Foreman Formation, Callovian (166.1 - 163.5 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils, microfossils

Primary reference: T. P. Poulton. 1979. Jurassic Trigoniid Bivalves from Canada and Western United States of America. Geological Survey of Canada Bulletin 282 [G. Stanley/H. Shepherd/H. Shepherd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139477: authorized by George Stanley, entered by Hannah Shepherd on 12.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Trigoniida - Trigoniidae
Scaphotrigonia naviformis clam
possibly juvenile specimen