LACMIP loc. 20581, Upper Sespe Creek (Eocene of the United States)

Also known as UCLA loc. 581

Where: Ventura County, California (34.6° N, 119.2° W: paleocoordinates 34.9° N, 106.0° W)

• coordinate estimated from map

When: Coldwater Formation, Middle Eocene (47.8 - 37.7 Ma)

Environment/lithology: marine; sandstone

Size class: macrofossils

Primary reference: R. L. Squires. 1994. Macropaleontology of Eocene marine rocks, upper Sespe Creek area, Ventura County, southern California. SEPM (Society for Sedimentary Geology) Pacific Section 74:39-56 [M. Uhen/B. Shipps/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 202078: authorized by Mark Uhen, entered by Mark Uhen on 21.06.2019, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Ostreidae
Crassostrea tectonica Squires 2018 oyster
 Cardiida - Veneridae
"Callista conradiana" = Microcallista (Costacallista) conradiana Gabb 1864 venus clam
 Carditida - Crassatellidae
"Crassatella" collina Conrad 1857 clam
 Carditida - Carditidae
Venericardia (Pacificor) clarki Weaver and Palmer 1922 clam
subspecies. clarki
Gastropoda
 Architaenioglossa - Ampullinidae
Pachycrommium clarki Stewart 1927 snail
 Sorbeoconcha - Ficidae
Ficopsis hornii Gabb 1864 fig shell
 Sorbeoconcha - Naticidae
Polinices (Euspira) nuciformis Gabb 1864 moon snail
 Cerithioidea - Turritellidae
Turritella uvasana Conrad 1855 turret shell
subsp. uvasana