Also known as LACMIP loc. 10861, LACMIP Loc. 23648, CIT loc. 1183, CAS loc. 28172

Where: Butte County, California (39.8° N, 121.7° W: paleocoordinates 47.1° N, 90.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tenmile Member (Chico Formation), Middle Campanian (83.5 - 70.6 Ma)

• LITHOSTRATIGRAPHIC RELATIONS: From the Chico Fm, for which lithostratigraphic relationships are not discussed. AGE: Campanian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: This is the highest ammoinite locality in Chico Creek.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified sandstone

Size class: macrofossils

Preservation: mold/impression

Collected by L.R. Saul, R.B. Saul in 1952; reposited in the LACM

Collection methods: surface (in situ),

• COLLECTOR: L.E. & R.B. Saul, 1952. REPOSITORY: UCLA (at the time).

Primary reference: J. A. Taff, G. D. Hanna, and C. M. Cross. 1940. Type locality of the Cretaceous Chico formation. Geological Society America Bulletin 51(9):1131-1328 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86936: authorized by Austin Hendy, entered by Austin Hendy on 24.02.2009, edited by Matthew Clapham and Jonathan Marcot

Creative Commons license: CC BY (attribution)