Also known as 4.5 miles north of Sites

Where: Colusa County, California (39.4° N, 122.3° W: paleocoordinates 39.5° N, 80.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Great Valley Group, Late/Upper Albian (105.3 - 99.6 Ma)

• Str. position: Limy concretion from the shale about 25 feet below the base of Venado sandstone formation

•Age: Upper Albian

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, calcareous shale

Size class: macrofossils

Collected by M. V. Kirk in 1949; reposited in the UCMP

• Coll.: M. V. KIRK, summer 1949

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 225838: authorized by Jonathan Marcot, entered by Jonathan Marcot on 02.06.2022

Creative Commons license: CC BY (attribution)