CSUN Loc. 452, near mouth of Las Llajas Canyon, Santa Susana Mountains (Eocene of the United States)

Also known as UCMP locality A-994

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

• Paleocoordinates: 39.6° N, 96.9° W (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Llajas Formation, Lutetian (48.1 - 41.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coastal; sandstone

• lnterfingering coastal alluvial-fan facies and shallow-marine (transgressive) facies

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 200842: authorized by Jonathan Marcot, entered by Jonathan Marcot on 22.04.2019

Creative Commons license: CC0 (CC0)

Taxonomic list

Bivalvia
 Carditida - Carditidae
Gastropoda
 Architaenioglossa - Ampullinidae
Pachycrommium clarki Stewart 1927 snail
 Cerithioidea - Turritellidae
Turritella uvasana infera n. ssp. Merriam 1941 turret shell
Turritella meganosensis protumescens Merriam and Turner 1937 turret shell
 Neogastropoda - Buccinidae
Strepsidura ficus Gabb 1864 true whelk
 Neogastropoda - Pseudolividae
 Heterostropha - Architectonicidae