LACMIP 10508, Trailer Canyon (Paleocene of the United States)

Where: Los Angeles County, California (34.1° N, 118.6° W: paleocoordinates 37.8° N, 99.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Santa Susana Formation, Thanetian (59.2 - 56.0 Ma)

• Lower upper Paleocene (lower Thanetian)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, calcareous siltstone

• Deposited in a protected bay (no deeper than 40 to 70 m) with warm-algal-limestone buildups associated with shoals on the bay floor
• Thin coralline-algal-rich micaceous muddy siltstone bed

Size class: macrofossils

Collected by G. Strathearn in 1982; reposited in the LACM

Primary reference: R. L. Squires and L. R. Saul. 2007. Paleocene pareorine turritellid gastropods from the Pacific slope of North America. The Nautilus 121(1):1-16 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184013: authorized by Matthew Clapham, entered by Vanessa Maciel on 25.01.2017, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Neritoidea - Neritidae
Corsania (Januncia) rhoga2
Corsania (Januncia) rhoga2 Saul and Squires 1997 snail
 Cerithioidea - Turritellidae
Mesalia clarki
Mesalia clarki Dickerson 1914 turret shell
Bivalvia
 Pectinida - Plicatulidae
Plicatula trailerensis n. sp.1, Plicatula lapidicina1
Plicatula trailerensis n. sp.1 Squires and Saul 1998 scallop
Plicatula lapidicina1 Squires and Saul 1998 scallop
1Squires and Saul 1998; 2Squires and Saul 2002