UCMP 1557 (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 190779: authorized by Patricia Holroyd, entered by Patricia Holroyd on 17.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bivalvia
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Pholadida - Corbulidae
Corbula sp. Bruguière 1789 clam
 Pholadida - Teredinidae
Teredo sp. Linnaeus 1758 clam
 Cardiida - Veneridae
Tapes "sp. a" Mühlfeld 1811 venus clam
? Paphia clarki Dickerson 1914 venus clam
Meretrix stantoni Dickerson 1914 venus clam
 Cardiida - Tellinidae
Tellina "sp. a" Linnaeus 1758 tellin clam
 Cardiida - Cardiidae
"Cardium cooperi" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
 Lucinida - Lucinidae
 Nuculida - Nuculidae
"Nucula (Acila) sp." = Acila
"Nucula (Acila) sp." = Acila Adams and Adams 1858 divaricate nutclam
 Protobranchia - Nuculanidae
"Leda gabbi" = Nuculana (Saccella) gabbii Conrad 1869 pointed nut clam
Gastropoda
 Architaenioglossa - Ampullinidae
Ampullina striata Gabb 1868 snail
 Neogastropoda - Buccinidae
"Brachysphingus liratus" = Brachysphingus sinuatus
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1868 true whelk
 Ficoidea - Ficidae
"Urosyca caudata" = Priscoficus caudatus
"Urosyca caudata" = Priscoficus caudatus Gabb 1868 fig shell
 Calyptraeoidea - Calyptraeidae
Galerus excentricus Gabb 1864 slipper shell
 Tonnoidea - Ranellidae
Tritonium martinezensis Dickerson 1914 triton
 Sorbeoconcha - Turritellidae
Turritella infragranulata Gabb 1864 turret shell
Anthozoa
 Scleractinia - Flabellidae
"Flabellum remondianum" = Flabellum cuneiforme
"Flabellum remondianum" = Flabellum cuneiforme Lonsdale 1845 stony coral
Zirphaea
  -
? Zirphaea sp. Gray 1840