USGS Mesozoic loc. 2154 (Cretaceous of the United States)

Where: Curry County, Oregon (42.8° N, 124.5° W: paleocoordinates 41.1° N, 73.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Myrtle Formation, Valanginian (139.8 - 132.9 Ma)

• STRATIGRAPHIC RELATIONS: From the Myrtle Fm. AGE: Valanginian, 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 Diller & Storrs in 1900; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTORS: J.S. Diller, 1900. 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 83606: 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
Bivalvia
 Pectinida - Buchiidae
Buchia sp.
Buchia sp. Rouillier 1845 scallop
p. B10: "large crushed Buchias"
Cephalopoda
 Ammonoidea - Hamulinidae
Anahamulina wilcoxensis
Anahamulina wilcoxensis Imlay 1960 ammonite
 Ammonitida - Neocomitidae
Thurmanniceras jenkinsi, Thurmanniceras wilcoxi, Kilianella cf. besairiei, Sarasinella cf. subspinosa, Acanthodiscus aff. subradiatus
Thurmanniceras jenkinsi Anderson 1933 ammonite
Thurmanniceras wilcoxi Anderson 1938 ammonite
Kilianella cf. besairiei Spath 1939 ammonite
Sarasinella cf. subspinosa Uhlig 1905 ammonite
Acanthodiscus aff. subradiatus Uhlig 1910 ammonite
 Ammonitida - Polyptychitidae
Tollia mutabilis
Tollia mutabilis Stanton 1895 ammonite