CAS loc. 69098 (Cretaceous of the United States)

Also known as LACMIP loc. 23903; UCLA loc. 3903

Where: Shasta County, California (40.5° N, 122.6° W: paleocoordinates 43.3° N, 85.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gas Point Member (Budden Canyon Formation), Turonian (93.9 - 89.8 Ma)

• STRATIGRAPHIC RELATIONS: From Gas Point Member of the Budden Canyon Formation. Further details published in Saul (1982) and Squires and Saul 2003, 2004). AGE: Turonian based on molluscan biostratigraphy. STRATIGRAPHIC POSITION: Unknown position within member.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, concretionary, gray limestone and gray mudstone

• ENVIRONMENT: In general regarded as shallow water, though some units includes assemblages displaced into deeper waters through turbidity currents. Here assigned to a siliciclastic offshore environment on the basis of lithology.
• GENERAL LITHOLOGY: Large grey limestone nodules in gray mudstone. LITHIFICATION: Assumed lithified based on lithologic description and figured specimens.

Size class: macrofossils

Preservation: concretion, original aragonite

Reposited in the CAS

• COLLECTOR: P.U. Rodda, 1955. REPOSITORY: CAS, California.

Primary reference: R. L. Squires and L. R. Saul. 2006. Additions and refinements to Aptian to Santonian (Cretaceous) Turritella (Mollusca: Gastropoda) from the Pacific Slope of North America. The Veliger 48(1):46-60 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69615: authorized by Austin Hendy, entered by Austin Hendy on 28.02.2007, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Only includes Turritella (Gastropoda), therefore very limited. NOMENCLATURE: Authoritative publication with species-level assignments.
Gastropoda
 Cerithioidea - Turritellidae
Turritella petersoni Merriam 1941 turret shell
Bivalvia
 Pholadida - Corbulidae
Caestocorbula attina Squires and Saul 2004 clam