Where: Contra Costa County, California (38.0° N, 122.2° W: paleocoordinates 43.9° N, 100.0° W)
When: Martinez Formation, Paleocene (66.0 - 56.0 Ma)
• Martinez Fm. discussed as Eocene by Dickerson 1914, but rocks now regarded as Paleocene following Stewart, Ralph, 1949, Lower Tertiary stratigraphy of Mount Diablo, Marysville Buttes, and west border of lower Central Valley of California: U.S. Geological Survey Oil and Gas Investigations Preliminary Chart, OC-34.
Environment/lithology: marine; lithology not reported
Size classes: macrofossils, mesofossils
Reposited in the UCMP
Primary reference: R. E. Dickerson. 1914. Fauna of the Martinez Eocene of California. Bulletin of the Department of Geology, University of California 6:61-180 [P. Holroyd/P. Holroyd/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 190770: authorized by Patricia Holroyd, entered by Patricia Holroyd on 17.12.2017, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Turritella sp. Lamarck 1799 turret shell | |
Bivalvia | |
"Leda gabbi" = Nuculana (Saccella) gabbii
"Leda gabbi" = Nuculana (Saccella) gabbii Conrad 1866 pointed nut clam | |
"Cardium cooperi" = Nemocardium (Nemocardium) linteum
"Cardium cooperi" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle | |
Tellina cf. remondii Gabb 1864 tellin clam | |
"Solen stantoni" = Solena (Eosolen) stantoni
"Solen stantoni" = Solena (Eosolen) stantoni Weaver 1905 clam |