Jergins Oil Company, Chaney Ranch No. 1 (3543-3864 feet) (Eocene to of the United States)

Where: Fresno County, California (36.6° N, 120.5° W: paleocoordinates 36.4° N, 108.1° W)

• coordinate stated in text

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

• Fossils from 3543-3864 feet 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 class: 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 191015: authorized by Patricia Holroyd, entered by Patricia Holroyd on 04.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
  - Coregonidae
Beckius plicatus n. gen. n. sp.
Beckius plicatus n. gen. n. sp. David 1946 bony fish
stated range: 3570-3597 feet
Actinopteri
 Beryciformes - Berycidae
Beryx eogenus n. sp. David 1946
stated range: 3570-3647 feet
Beryx sanjoaquinensis n. sp. David 1946
stated range: 3570-3647 feet
 Beloniformes - Scomberesocidae
Praescomberesox pacificus David 1946
stated range: 3548-3597 feet
 Scombriformes - Scombridae
Eoscombrus chaneyensis David 1946
stated range: 3570-3597 feet
 Acanthomorphata - Moronidae
Paramorone eocenica n. gen. n. sp.
Paramorone eocenica n. gen. n. sp. David 1946 temperate bass
stated range: 3624-3647 feet
 Aulopiformes - Chlorophthalmidae
Iniomus fossilis n. gen. n. sp.
Iniomus fossilis n. gen. n. sp. David 1946
stated range: 3570-3597 feet
 Clupeiformes - Clupeoidei
Pseudoetringus kreyenhagius David 1946 herring
stated range: 3543-3669 feet
Wisslerius sardinelloides David 1946 hering
stated range: 3570-3864 feet