Pure Oil Company, Chowchilla No. 1 (Eocene to of the United States)

Where: Madera County, California (37.1° N, 120.5° W: paleocoordinates 38.2° N, 106.8° W)

• coordinate stated in text

• hand sample-level geographic resolution

When: Kreyenhagen Formation, Middle Eocene to Middle Eocene (48.6 - 33.9 Ma)

• Fossils from 2834 feet and lower below surface. Age listed in David 1946 as "Eogene" reflecting the author's interpretation of the age of the rocks as late Eocene to potentially early Oligocene. Formation as a whole now regarded as late middle Eocene to Eocene (see chapters in USGS Professional Paper 1713).

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: L. R. David. 1946. Some typical Upper Eocene fish scales from California. Contributions to Paleontology, Carnegie Institute of Washington Publication 551:47-112 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190999: authorized by Patricia Holroyd, entered by Patricia Holroyd on 03.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Beloniformes - Hemiramphidae
"Hemiexocoetus eocenicus" = Eoexocoetus eocenicus
"Hemiexocoetus eocenicus" = Eoexocoetus eocenicus David 1946
 Clupeiformes - Clupeoidei
Pseudoetringus kreyenhagius David 1946 herring