CAS Loc. 28310A - Ortigalita Peak (Cretaceous of the United States)

Also known as CIT loc. 1573; LACMIP loc. 10685; LACMIP loc. 22661; UCLA loc. 2261

Where: Merced County, California (36.8° N, 120.9° W: paleocoordinates 42.9° N, 96.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Quinto Silt Member (Moreno Formation), Maastrichtian (72.1 - 66.0 Ma)

• LITHOSTRATIGRAPHY: From the Quinto Silt of the Moreno Fm, Asuncion Gp, which overlies the Mustang Shale Mbr and is overlain by the Garzas Sand. AGE: Maastrichtian, on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within the the Quinto Silt.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, conglomeratic sandstone

• ENVIRONMENT: Siliciclastic marine setting.
• LITHOLOGY: Conglomeratic sandstone.

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the CAS

Collection methods: surface (in situ),

• COLLECTOR: Multiple collections, including Taff, Hanna, Cross, Bennison, McCoy and Anderson. REPOSITORY: California Academy of Sciences.

Primary reference: R. L. Squires and L. R. Saul. 2003. New late Cretaceous (Campanian and Maastrichtian) marine gastropods from California. Journal of Paleontology 77(1):50-63 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176930: authorized by Pete Wagner, entered by Pete Wagner on 08.03.2016, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature.
Gastropoda
 Sorbeoconcha - Naticidae
Gyrodes (Sohlella) expansus2 Gabb 1864 moon snail
 Sorbeoconcha - Ficidae
Bulbificopsis garza n. gen. n. sp.
Bulbificopsis garza n. gen. n. sp. Squires and Saul 2003 fig shell
 Neogastropoda - Perissityidae
Perissitys stantoni2 Stewart 1927 snail
 Neritoidea - Neritidae
Nerita (? Bajanerita) banosensis2 Squires and Saul 2002 snail
Bivalvia
 Cardiida - Veneridae
Callistalox fragilis1 Gabb 1869 venus clam
Calva (Calva) varians2 Gabb 1864 venus clam
 Carditida - Astartidae
 Arcida - Glycymerididae
"Glycymeris banosensis" = Glycymerita banosensis2
"Glycymeris banosensis" = Glycymerita banosensis2 Anderson 1958 clam
hypotype of Glycymeris veatchii major of Smith 1945