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, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Flabellidae
"Flabellum remondianum" = Flabellum cuneiforme
"Flabellum remondianum" = Flabellum cuneiforme Lonsdale 1845 stony coral
 Scleractinia - Guyniidae
"Trochocyathus zitteli" = Palaeopsammia zitteli
"Trochocyathus zitteli" = Palaeopsammia zitteli Vaughan 1900 stony coral
Gastropoda
 Cerithioidea - Turritellidae
Turritella pachecoensis Stanton 1896 turret shell
 Neogastropoda - Buccinidae
"Brachysphingus liratus" = Brachysphingus sinuatus
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1869 true whelk
 Neogastropoda - Melongenidae
"Neptunea mucronata" = Sycum mucronatum
"Neptunea mucronata" = Sycum mucronatum Gabb 1869 snail
 Neogastropoda - Turridae
Turris sp. Röding 1798 turrid
 Neogastropoda - Muricidae
"Perissolax tricarnatus" = Pseudoperissolax tricarnatus
"Perissolax tricarnatus" = Pseudoperissolax tricarnatus Weaver 1905 murex snail
 Sorbeoconcha - Ficidae
Urosyca caudata Gabb 1869 fig shell
 Sorbeoconcha - Naticidae
"Lunatia hornii" = Polinices hornii Gabb 1864 moon snail
Amauropsis martinezensis Dickerson 1914 moon snail
Bivalvia
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Arcida - Glycymerididae
Glycymerita major Stanton 1896 clam
 Pectinida - Limidae
"Lima haseltinei" = Acesta (Plicacesta) haseltinei
"Lima haseltinei" = Acesta (Plicacesta) haseltinei Dickerson 1914 file clam
 Cardiida - Veneridae
? Macrocallista packi n. sp. Dickerson 1914 venus clam
 Cardiida - Cardiidae
"Cardium cooperi" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
 Carditida - Crassatellidae
"Crassatellites unioides" = Crassatella unioides, "Crassatellites grandis" = Crassatella uvasana
"Crassatellites unioides" = Crassatella unioides Stanton 1896 clam
"Crassatellites grandis" = Crassatella uvasana Conrad 1855 clam
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium cooperi Gabb 1864 tusk shell