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 (48.6 - 33.9 Ma)
• Fossils from 3141-3170 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 191000: authorized by Patricia Holroyd, entered by Patricia Holroyd on 03.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Caranx orolomaensis David 1946 | |
Parapolymixia californica David 1946 beardfish | |
Chondrichthyes | |
? Galeocerdo sp. Müller and Henle 1837 tiger shark |