CSUN Loc. 484 (Eocene of the United States)

Where: Ventura County, California (34.3° N, 118.6° W: paleocoordinates 35.1° N, 104.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Llajas Formation, Lutetian (47.8 - 41.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; sandstone

• Shallow-marine (transgressive) facies

Size class: macrofossils

Preservation: mold/impression

Collected by Squires in 1978; reposited in the LACM

Primary reference: R. L. Squires. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Contributions in Science, Natural History Museum of Los Angeles County 350:1-76 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 201693: authorized by Jonathan Marcot, entered by Jonathan Marcot on 21.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pholadida - Corbulidae
Corbula (Caryocorbula) dickersoni Weaver and Palmer 1922 clam
Scaphopoda
 Dentaliida - Dentaliidae
Gastropoda
 Opisthobranchia - Retusidae
Cylichnina tantilla Anderson and Hanna 1925 snail
 Architaenioglossa - Ampullinidae
Eocernina hannibali Dickerson 1914 snail
Pachycrommium clarki Stewart 1927 snail
 Sorbeoconcha - Strombidae
"Ectinochilus (Macilentos) macilentus" = Rimella macilenta
"Ectinochilus (Macilentos) macilentus" = Rimella macilenta White 1889 true conch
 Neogastropoda - Volutidae
Lyria andersoni Waring 1917 volute
 Neogastropoda - Olividae
Olivella mathewsonii Gabb 1864 olive snail
 Neogastropoda - Clathurellidae
 Neogastropoda - Conidae
Conus hornii Gabb 1864 cone shell
as Conus hornii umpquaensis
 Neogastropoda - Pseudolividae
"Pseudoliva lineata" = Calorebama dilleri lineata
"Pseudoliva lineata" = Calorebama dilleri lineata Gabb 1864 snail
 Cerithioidea - Turritellidae
Turritella uvasana Conrad 1855 turret shell
as Turritella uvasana applinae