Where: Madera County, California (36.9° N, 120.3° W: paleocoordinates 36.7° N, 107.9° W)

• coordinate stated in text

• hand sample-level geographic resolution

When: Kreyenhagen Formation, Middle Eocene to Middle Eocene (47.8 - 33.9 Ma)

• Fossils from 3170-3200 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 191001: authorized by Patricia Holroyd, entered by Patricia Holroyd on 03.01.2018

Creative Commons license: CC BY (attribution)