USGS 2225: Hauterivian, California
collected by Stanton 1900

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Phylloceratida - Phylloceratidae
Hypophylloceras aff. onoense (Stanton 1895)
Cephalopoda - Megacrioceratidae
Shasticrioceras aff. whitneyi Anderson 1938
Cephalopoda - Ammonitida - Acrioceratidae
Hoplocrioceras remondi (Gabb 1864)
Cephalopoda - Ammonitida - Polyptychitidae
Hertleinites aguila (Anderson 1938)
Cephalopoda - Ammonitida - Lytoceratidae
Lytoceras aulaeum Anderson 1938
see common names

Geography
Country:United States State/province:California County:Shasta
Coordinates: 40.5° North, 122.6° West (view map)
Paleocoordinates:39.3° North, 71.9° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Hauterivian 10 m.y. bin:Cretaceous 2
Key time interval:Hauterivian
Age range of interval:132.60000 - 125.77000 m.y. ago
Stratigraphy
Formation:Budden Canyon
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Ono Fm. AGE: Hauterivian, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.
Lithology and environment
Primary lithology: lithified "siliciclastic"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Not stated, but probably siliciclastic. LITHIFICATION: Lithified on the basis of figured specimens.
Environment:marine indet.
Geology comments: ENVIRONMENT: Not stated in text.
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:surface (in situ),survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:Stanton Collection dates:1900
Collection method comments: COLLECTORS: T.W. Stanton, 1900. REPOSITORY: USNM, Washington DC.
Taxonomic list comments: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.
Metadata
Database number:83607
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:J. Marcot Research group:marine invertebrate
Created:2008-08-22 13:18:03 Last modified:2023-06-12 12:57:17
Access level:the public Released:2008-08-22 13:18:03
Creative Commons license:CC BY
Reference information

Primary reference:
28036. 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]