UCR 4996 (Eocene of the United States)

Where: San Diego County, California (32.8° N, 117.2° W: paleocoordinates 33.5° N, 103.1° W)

• coordinate estimated from map

When: Mission Valley Formation (Poway Group), Lutetian (47.8 - 41.3 Ma)

Environment/lithology: lagoonal; sandstone

Size class: macrofossils

Primary reference: C. R. Givens and M. P. Kennedy. 1979. Eocene molluscan stages and their correlation, San Diego area, California. Pacific Section SEPM 1979:81-95 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 200762: authorized by Mark Uhen, entered by Mark Uhen on 15.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Mytilida - Mytilidae
 Carditida - Crassatellidae
Crassatella uvasana Conrad 1855 clam
subspecies cf. uvasana
 Cardiida - Veneridae
Pitar uvasanus venus clam
subspecies uvasanus
Callista andersoni venus clam
"Callista cf. hornii" = Meretrix hornii Gabb 1864 venus clam
 Thraciida - Thraciidae
Thracia dilleri Dall 1898 clam
 Pholadomyida - Pholadomyidae
 Neogastropoda - Conidae
Conus hornii Gabb 1864 cone shell
subspecies cf. hornii
 Stromboidea - Strombidae
"Ectinochilus canalifer" = Rimella
"Ectinochilus canalifer" = Rimella true conch
 Ficoidea - Ficidae
"Pseudoperissolax blakei" = Perissolax blakei, Ficopsis remondii, Ficopsis hornii
"Pseudoperissolax blakei" = Perissolax blakei Conrad 1855 fig shell
Ficopsis remondii Gabb 1864 fig shell
subspecies remondii
Ficopsis hornii Gabb 1864 fig shell