CSUN 449, Las Llajas Canyon (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)

• The stewart bed is a 1 m thick sandstone unit in the middle of the LLajas formation. Lutetian, chron 21r according to Squires (2001).

• bed-level stratigraphic resolution

Environment/lithology: offshore; bioturbated sandstone

• The Stewart bed is located in a section of transition from shallow-marine to outer slope and shelf facies.
• 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 200839: authorized by Jonathan Marcot, entered by Jonathan Marcot on 22.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Solenida - Solenidae
"Solena (Eosolen) navacularis" = Solena (Eosolen) novacularis
"Solena (Eosolen) navacularis" = Solena (Eosolen) novacularis Anderson and Hanna 1925 clam
Gastropoda
 Architaenioglossa - Ampullinidae
Eocernina hannibali Dickerson 1914 snail
 Neogastropoda - Conidae
Conus hornii Gabb 1864 cone shell
as Conus hornii umpquaensis
 Stromboidea - Strombidae
"Ectinochilus (Macilentos) macilentus" = Ectinochilus (Macilentos) macilenta
"Ectinochilus (Macilentos) macilentus" = Ectinochilus (Macilentos) macilenta White 1889 true conch
 Sorbeoconcha - Turritellidae
Turritella andersoni Dickerson 1916 turret shell
as Turritella andersoni lawsoni
Turritella uvasana Conrad 1865 turret shell
as Turritella uvasana applinae
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium stentor Anderson and Hanna 1925 tusk shell