CAS Loc. 1653, near Mitchell Creek (Cretaceous to of the United States)

Also known as half a mile northwest of Barr's corral; CASG Loc. 66495

Where: Shasta County, California (40.4° N, 122.7° W: paleocoordinates 40.6° N, 75.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chickabilly Member (Budden Canyon Formation), Aptian to Aptian (125.0 - 100.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

• ENVIRONMENT: Not stated in text.
• SPECIFIC LITHOLOGY: Not stated, but probably siliciclastic. LITHIFICATION: Lithified on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Anderson in 1929; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTORS: F.M. Anderson and G.D. Hanna, 1929. REPOSITORY: CAS.

Primary reference: F. M. Anderson. 1938. Lower Cretaceous deposits in California and Oregon. Geological Society of America Special Paper 16:1-331 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225524: authorized by Jonathan Marcot, entered by Jonathan Marcot on 14.05.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoidea. Other taxonomic groups may be present but are not listed. NOMENCLATURE: Authoritative publication, with fairly modern nomenclature, and species-resolution identifications.
Cephalopoda
 Ammonoidea - Megacrioceratidae
Shasticrioceras whitneyi n. sp. Anderson 1938 ammonite