USGS Mesozoic loc. 1092, Wilcox Ranch (Cretaceous of the United States)

Also known as Sta. 95

Where: Tehama County, California (40.1° N, 122.2° W: paleocoordinates 38.9° N, 71.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Paskenta Formation, Hauterivian (132.9 - 129.4 Ma)

• STRATIGRAPHIC RELATIONS: From the Paskenta Fm. AGE: Hauterivian, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.

• 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 Stanton in 1893; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTORS: Stanton, Diller, and Storrs, 1893. REPOSITORY: USNM, Washington DC.

Primary reference: R. W. Imlay. 1960. Ammonites of Early Cretaceous age (Valanginian and Hauterivian) from the Pacific Coast states. United States Geological Survey Professional Paper 334(F):1-228 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 83598: authorized by Austin Hendy, entered by Austin Hendy on 22.08.2008, edited by Jonathan Marcot

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.
Show authors, comments, and common names
Cephalopoda
 Phylloceratida - Phylloceratidae
Hypophylloceras aff. onoense
Hypophylloceras aff. onoense Stanton 1895 ammonite
 Ammonitida - Lytoceratidae
Lytoceras aulaeum
Lytoceras aulaeum Anderson 1938 ammonite
 Ammonitida - Polyptychitidae
Hertleinites pecki, "Neocraspedites aguila" = Hertleinites aguila2, Hollisites lucasi1, Hollisites inflatus
Hertleinites pecki Imlay 1960 ammonite
"Neocraspedites aguila" = Hertleinites aguila2 Anderson 1938 ammonite
Hollisites lucasi1 Imlay 1957 ammonite
Hollisites inflatus Imlay 1960 ammonite
 Ammonitida - Crioceratitidae
Crioceratites cf. tehamaensis
Crioceratites cf. tehamaensis Anderson 1938 ammonite
 Ammonoidea - Hamulinidae
Anahamulina wilcoxensis
Anahamulina wilcoxensis Imlay 1960 ammonite
 Ammonoidea - Megacrioceratidae
Shasticrioceras sp.
Shasticrioceras sp. Anderson 1938 ammonite
1Imlay 1957; 2Imlay 1959