CSUN Loc. 466, Santa Susana Mountains (Eocene of the United States)

Where: Ventura County, California (34.3° N, 118.7° W: paleocoordinates 35.1° N, 104.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: offshore; sandstone

Size class: macrofossils

Reposited in the LACM

Collection methods: bulk,

• Repository: Formerly California State University Northridge (CSUN)

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 200852: authorized by Jonathan Marcot, entered by Jonathan Marcot on 22.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Mytilida - Mytilidae
Brachidontes (Brachidontes) cowlitzensis Weaver and Palmer 1922 mussel
 Cardiida - Veneridae
"Callista (Costacallista) cf. hornii" = Macrocallista (Costacallista) hornii
"Callista (Costacallista) cf. hornii" = Macrocallista (Costacallista) hornii Gabb 1864 venus clam
Scaphopoda
 Dentaliida - Dentaliidae
Gastropoda
 Opisthobranchia - Retusidae
Cylichnina tantilla Anderson and Hanna 1925 snail
 Architaenioglossa - Ampullinidae
Pachycrommium clarki Stewart 1927 snail
 Neogastropoda - Volutidae
Lyria andersoni Waring 1917 volute
 Neogastropoda - Clathurellidae