Long wharf, Santa Monica (Pleistocene to of the United States)

Where: California (34.0° N, 118.5° W: paleocoordinates 34.0° N, 118.2° W)

When: Pleistocene to Pleistocene (2.6 - 0.0 Ma)

Environment/lithology: marine; lithology not reported

Size class: mesofossils

• One immovable finger of young specimen (L. crispatus); 2 arms (R. ornata);

Collected by F.C. Clark; reposited in the USNM

• R. ornata (Cat. No. 353344, USNM)

Primary reference: M. J. Rathbun. 1926. The fossil stalk-eyed Crustacea of the Pacific slope of North America. United States National Museum Bulletin 138:1-155 [C. Schweitzer/S. Yost/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 138821: authorized by Carrie Schweitzer, entered by Samantha Yost on 29.01.2013, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Polyplacophora
 Chitonida - Callistoplacidae
Callistochiton palmulatus Dall 1879 chiton
subspecies mirabilis
Callistochiton crassicostatus Pilsbry 1893 chiton
 Neoloricata - Mopaliidae
Mopalia acuta Carpenter 1855 chiton
 Neoloricata - Acanthochitonidae
Acanthochitona avicula Carpenter 1864 glass-hair chiton
 Neoloricata - Leptochitonidae
Leptochiton clarki n. sp. Berry 1922 chiton
 Neoloricata - Ischnochitonidae
"Ischnochiton (Stenoplax) acrior" = Stenoplax magdalenensis, "Ischnochiton (Stenoplax) conspicuus" = Stenoplax conspicua, Ischnochiton (Lepidozona) pectinulatus, "Ischnochiton (Lepidozona) sanctaemonicae n. sp." = Lepidozona sanctaemonicae
"Ischnochiton (Stenoplax) acrior" = Stenoplax magdalenensis Hinds 1845 magdalena chiton
"Ischnochiton (Stenoplax) conspicuus" = Stenoplax conspicua Carpenter 1879 conspicuous chiton
"Ischnochiton (Lepidozona) sanctaemonicae n. sp." = Lepidozona sanctaemonicae Berry 1922 chiton
Malacostraca
 Decapoda - Leucosiidae
Randallia ornata Randall 1839 crab
 Decapoda - Epialtidae
Loxorhynchus crispatus Stimpson 1857 spider crab