UCMP 1580 (Paleocene of the United States)

Where: Contra Costa County, California (38.0° N, 122.2° W: paleocoordinates 43.9° N, 100.0° W)

• coordinate based on nearby landmark

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 190781: authorized by Patricia Holroyd, entered by Patricia Holroyd on 17.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
"Glycimeris veatchii" = Axinaea veatchii
"Glycimeris veatchii" = Axinaea veatchii Gabb 1864 clam
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Pectinida - Limidae
"Lima haseltinei" = Acesta (Plicacesta) haseltinei
"Lima haseltinei" = Acesta (Plicacesta) haseltinei Dickerson 1914 file clam
 Carditida - Crassatellidae
"Crassatellites unioides" = Crassatella, Crassatellites grandis
"Crassatellites unioides" = Crassatella clam
Crassatellites grandis Gabb 1864 clam
 Cardiida - Veneridae
? Macrocallista packi n. sp. Dickerson 1914 venus clam
 Cardiida - Cardiidae
"Cardium cooperi" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
Gastropoda
 Neogastropoda - Buccinidae
"Brachysphingus liratus" = Brachysphingus sinuatus
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1868 true whelk
 Neogastropoda - Fasciolariidae
"Neptunea mucronata" = Fasciolaria mucronata
"Neptunea mucronata" = Fasciolaria mucronata Gabb 1868 tulip snail
 Neogastropoda - Turridae
Turris sp. Röding 1798 turrid
 Ficoidea - Ficidae
"Urosyca caudata" = Priscoficus caudatus Gabb 1868 fig shell
Perissolax tricarnatus Weaver 1905 fig shell
 Naticoidea - Naticidae
"Lunatia hornii" = Polinices (Euspira) hornii Gabb 1864 moon snail
Amauropsis martinezensis Dickerson 1914 moon snail
 Sorbeoconcha - Turritellidae
Turritella pachecoensis Stanton 1896 turret shell
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium cooperi Gabb 1864 tusk shell
Anthozoa
 Scleractinia - Guyniidae
"Trochocyathus zitteli" = Palaeopsammia zitteli
"Trochocyathus zitteli" = Palaeopsammia zitteli Vaughan 1900 stony coral
 Scleractinia - Flabellidae
"Flabellum remondianum" = Flabellum cuneiforme
"Flabellum remondianum" = Flabellum cuneiforme Lonsdale 1845 stony coral