Where: Alameda County, California (37.9° N, 122.2° W: paleocoordinates 37.8° N, 82.4° W)

• coordinate estimated from map

When: Cenomanian (100.5 - 93.9 Ma)

• Str. position: No record of formational name

•Fossil: Turrilites costatus LAMARCK

•Age: Cenomanian

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by B. L. Clark; reposited in the CAS

• Coll.: B. L. CLARK ( ?)

Primary reference: T. Matsumoto. 1960. Upper Cretaceous ammonites of California. Part III. Memoirs of the Faculty of Science, Kyushu University Series D, Geology, Special Volume II 1-204 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224961: authorized by Jonathan Marcot, entered by Jonathan Marcot on 14.04.2022

Creative Commons license: CC BY (attribution)