CIT Loc. 330 (Pleistocene of the United States)

Where: Los Angeles County, California (33.7° N, 118.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Timms Point Silt Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• LITHOSTRATIGRAPHY: From "Timms Point beds", which locally overly Miocene shale. AGE: Pleistocene, following Clark (1931), but edited to middle Pleistocene by enterer on the basis of established modern age control. STRATIGRAPHIC DETAILS: Bed no. 1; bryozoa abundant.

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified siltstone

• ENVIRONMENT: fauna is characteristic of offshore soft-bottom settings.
• LITHOLOGY: shale. LITHIFICATION: not reported in text, but fossils in LACMIP collection from these localities are unlithified.

Size classes: macrofossils, mesofossils

Preservation: original aragonite, original calcite

Collected by A. Clark in 1929; reposited in the CIT, LACM

Collection methods: bulk, surface (float), surface (in situ),

• COLLECTOR: A. Clark, 1929. REPOSITORY: LACMIP, including former CIT collections.

Primary reference: A. Clark. 1931. The cool-water Timms Point Pleistocene horizon at San Pedro, California. Transactions of the San Diego Society of Natural History 7:25-42 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 202638: authorized by Austin Hendy, entered by Austin Hendy on 16.07.2019

Creative Commons license: CC0 (CC0)

Taxonomic list

• COVERAGE: Exhaustive for invertebrates. NOMENCLATURE: Antiquated, but mostly with species-resolution identifications.
Gastropoda
 Sorbeoconcha - Procerithiidae
Bivalvia
 Nuculanida - Nuculanidae
 Pectinida - Pectinoidae
Gymnolaemata
 Cheilostomata - Tubucellariidae
Stenolaemata
 Tubuliporata - Multisparsidae
Idmonea californica Conrad 1855
Rhynchonellata
 Terebratulida - Laqueidae
"Laqueus californicus vancouverensis" = Laqueus vancouverensis
"Laqueus californicus vancouverensis" = Laqueus vancouverensis Davidson 1886
Bivalvia
 Pectinida - Pectinoidae
Chlamys jordani Arnold 1903 scallop
 Pectinida - Anomiidae
Monia macrochisma Deshayes 1839 scallop
 Lucinida - Lucinidae
"Lucina annulata" = Lucinoma annulatum, "Lucina californica" = Epilucina californica, "Lucina nuttallii" = Lucinisca nuttalli
"Lucina annulata" = Lucinoma annulatum Reeve 1850 clam
"Lucina californica" = Epilucina californica Conrad 1837 clam
"Lucina nuttallii" = Lucinisca nuttalli Conrad 1837 clam
 Thraciida - Thraciidae
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides Conrad 1849 clam
 Cardiida - Cardiidae
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
 Cardiida - Chamidae
"Pseudochama exogyra" = Chama exogyra
"Pseudochama exogyra" = Chama exogyra Conrad 1837 jewel box
 Carditida - Carditidae
"Cardita ventricosa" = Coanicardita ventricosa, "Cardita barbarensis" = Hippocampocardia barbarensis
"Cardita ventricosa" = Coanicardita ventricosa Gould 1850 clam
"Cardita barbarensis" = Hippocampocardia barbarensis Stearns 1890 clam
 Nuculida - Nuculidae
"Acila castrensis" = Acila (Truncacila) castrensis
"Acila castrensis" = Acila (Truncacila) castrensis Hinds 1843 divaricate nutclam
Gastropoda
 Trochoidea - Turbinidae
Pomaulax gibberosa1 Dillwyn 1817 red turban
 Lepetellida - Fissurellidae
"Puncturella cucullata" = Craniopsis cucullata
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella
 Seguenzioidea - Eucyclidae
Cidarina cidaris Adams 1864 snail
 Opisthobranchiata - Cylichnidae
Acteocina culcitella Gould 1853 barrel-bubble
 Epitonioidea - Epitoniidae
"Epitonium indianorum" = Nitidiscala indianorum
"Epitonium indianorum" = Nitidiscala indianorum Carpenter 1864 wentletrap
 Sorbeoconcha - Procerithiidae
"Bittium cf. rugatum" = Lirobittium rugatum, "Bittium serra" = Lirobittium serra, Lirobittium latifilosum2, "Bittium ornatissimum" = Lirobittium armillatum
"Bittium cf. rugatum" = Lirobittium rugatum Carpenter 1866 snail
"Bittium serra" = Lirobittium serra Bartsch 1917 snail
Lirobittium latifilosum2 Bartsch 1911 snail
"Bittium ornatissimum" = Lirobittium armillatum Carpenter 1864 snail
 Neogastropoda - Fasciolariidae
Barbarofusus barbarensis Trask 1855 snail
 Neogastropoda - Borsoniidae
Borsonella bartschi Arnold 1903 snail
 Neogastropoda - Muricidae
"Boreotrophon orpheus praccursor" = Boreotrophon orpheus
"Boreotrophon orpheus praccursor" = Boreotrophon orpheus Gould 1842 murex snail
 Neogastropoda - Olividae
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail
 Sorbeoconcha - Ranellidae
Fusitriton oregonensis Redfield 1846 triton shell
 Sorbeoconcha - Naticidae
"Tectonatica clausa" = Cryptonatica affinis
"Tectonatica clausa" = Cryptonatica affinis Gmelin 1791 moon snail
 Neotaenioglossa - Calyptraeidae
"Crepidula lingulata" = Crepipatella lingulata Gould 1846 slipper shell
Crepidula nummaria Gould 1846 slipper shell
Calyptraea mamillaris Broderip 1834 slipper shell
 Pseudomelanoidea - Pseudomelaniidae
"Antiplanes perversa" = Antiplanes catalinae
"Antiplanes perversa" = Antiplanes catalinae Raymond 1904 snail
 Cerithioidea - Turritellidae
"Turritella cooperi" = Turritella cooperi, "Turritella jewettii" = Turritella cooperi
"Turritella cooperi" = Turritella cooperi Carpenter 1864 turret shell
"Turritella jewettii" = Turritella cooperi Carpenter 1864 turret shell