ammonites
Dry Creek [lower Pacheco Group] (Cretaceous of the United States)

Where: Tehama County, California (40.3° N, 122.4° W: paleocoordinates 41.5° N, 82.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pacheco Group, Cenomanian (99.6 - 93.5 Ma)

• LITHOSTRATIGRAPHY: From the Pacheco Gp, for which lithostratigraphic relations are unknown. AGE: Cenomanian, on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From higher beds within the group.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary sandstone

• ENVIRONMENT: Siliciclastic marine setting.
• LITHOLOGY: Buff concretionary sandstone. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression, concretion

Collected by McCoy

Collection methods: surface (in situ),

• COLLECTOR: McCoy, Benson, and Anderson. REPOSITORY: Not stated in text.

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83773: authorized by Austin Hendy, entered by Austin Hendy on 31.08.2008

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)