CAS Loc. 2324 - Coalinga [Waltham Fm] (Cretaceous of the United States)

Where: Fresno County, California (36.1° N, 120.3° W: paleocoordinates 35.8° N, 81.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Waltham Formation, Cenomanian (100.5 - 93.9 Ma)

• STRATIGRAPHIC RELATIONS: From the lower Waltham Fm, for which lithostratigraphic relations are not discussed. AGE: Cenomanian, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.

• group of beds-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 Hanna; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTORS: G. D. Hanna. REPOSITORY: CAS.

Primary reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86820: authorized by Austin Hendy, entered by Austin Hendy on 18.02.2009, 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
 Ammonitida - Acanthoceratidae
Mantelliceras cf. lecontei, Acanthoceras cf. sherborni
Mantelliceras cf. lecontei Anderson 1958 ammonite
Acanthoceras cf. sherborni Spath 1926 ammonite
= Acanthoceras cunningtoni of Anderson (1958)
 Ammonitida - Tetragonitidae
Anagaudryceras cf. sacya
Anagaudryceras cf. sacya Forbes 1846 ammonite
 Ammonitida - Turrilitidae
Turrilites cf. costatus
Turrilites cf. costatus Lamarck 1801 ammonite
= Turrilites pachecoensis of Anderson (1958)