CSUN 355, Garapito Creek (Paleocene of the United States)

Also known as Garapito Creek; Sylvia Park

Where: Los Angeles County, California (34.1° N, 118.6° W: paleocoordinates 37.9° N, 99.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Coal Canyon Formation, Thanetian (59.2 - 56.0 Ma)

• "Martinez Provincial Stage... late Paleocene" (Coal Canyon Formation in Squires, 1990)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified siltstone

• "between low water and about 180 m where wave and current action are moderate" based on fauna
• "a poorly exposed outcrop of siltstone beds"

Size class: macrofossils

Collected by J. Alderson; reposited in the LACM

Primary reference: R. L. Squires. 1980. A new species of brachyuran from the Paleocene of California. Journal of Paleontology 54(2):472-476 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90073: authorized by John Alroy, entered by John Alroy on 06.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Malacostraca
 Decapoda - Tumidocarcinidae
Cyclocorystes aldersoni n. sp.
Cyclocorystes aldersoni n. sp. Squires 1980 crab
Gastropoda
 Cerithioidea - Turritellidae
Turritella infragranulata
Turritella infragranulata Gabb 1864 turret shell
 Sorbeoconcha - Vermetidae
? Vermetidae indet.
? Vermetidae indet. Rafinesque 1815 worm shell
Bivalvia
 Pholadomyida - Pholadomyidae
Pholadomya nasuta
Pholadomya nasuta Gabb 1864 clam
 Solenida - Solenidae
? Solen sp.
? Solen sp. Linnaeus 1758 clam
 Carditida - Carditidae
"Venericardia (Glyptoactis) keenae" = Glyptoactis (Claibornicardia) keenae
"Venericardia (Glyptoactis) keenae" = Glyptoactis (Claibornicardia) keenae Verástegui 1953 clam