CSUN Loc. 539, Las Llajas Canyon, 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; bioturbated sandstone

• Shallow-marine (transgressive) facies.

Size class: macrofossils

Collected by R. L. Squires in 1983; 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 207177: authorized by Jonathan Marcot, entered by Jonathan Marcot on 31.12.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithioidea - Turritellidae
Turritella buwaldana Dickerson 1916 turret shell
Turritella andersoni Dickerson 1916 turret shell
as Turritella andersoni lawsoni
Turritella uvasana Conrad 1855 turret shell
as Turritella uvasana applinae
 Sorbeoconcha - Naticidae
Sinum obliquum Gabb 1864 moon snail
 Neogastropoda - Ptychatractidae
Exilia llajasensis Bentson 1940 snail
 Neogastropoda - Turridae
Pleurofusia fresnoensis Arnold 1909 turrid
 Neogastropoda - Clathurellidae
 Neogastropoda - Conidae
Conus caleocius Vokes 1939 cone shell
 Sorbeoconcha - Strombidae
Scaphopoda
 Dentaliida - Dentaliidae