CIT Loc. 1 (Pleistocene of the United States)

Where: Los Angeles County, California (33.7° N, 118.3° W: paleocoordinates 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: Stratigraphic position uncertain due to slumping.

• 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 W. Woodring in 1928; reposited in the CIT, LACM

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

• COLLECTOR: W. Woodring,1928. 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 202647: authorized by Austin Hendy, entered by Austin Hendy on 16.07.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for invertebrates. NOMENCLATURE: Antiquated, but mostly with species-resolution identifications.
Bivalvia
 Pectinida - Pectinoidae
Chlamys jordani, "Chlamys hastatus" = Chlamys hastata, ""Pecten" caurinus" = Patinopecten caurinus, "Pecten diegensis" = Leopecten diegensis
Chlamys jordani Arnold 1903 scallop
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
SUBSPECIES: Chlamys hastatus hastatus
""Pecten" caurinus" = Patinopecten caurinus Gould 1850 scallop
"Pecten diegensis" = Leopecten diegensis Dall 1898 scallop
SUBSPECIES: Pecten diegensis stearnsii
 Mytilida - Mytilidae
"Volsella fornicata" = Modiolus carpenteri
"Volsella fornicata" = Modiolus carpenteri Soot-Ryen 1963 mussel
 Cardiida - Cardiidae
"Trachycardium quadragenarium" = Dallocardia quadragenarium, "Cerastoderma corbis" = Clinocardium (Clinocardium) nuttallii, ""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum
"Trachycardium quadragenarium" = Dallocardia quadragenarium Conrad 1837 cockle
"Cerastoderma corbis" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
 Cardiida - Tellinidae
"Macoma calcarea" = Macoma (Macoma) calcarea
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam
 Cardiida - Semelidae
"Semele rubropicta" = Semele (Semele) rubropicta, "Semele incongrua" = Semele (Amphidesma) venusta
"Semele rubropicta" = Semele (Semele) rubropicta Dall 1871 clam
"Semele incongrua" = Semele (Amphidesma) venusta Reeve 1853 clam
 Cardiida - Ungulinidae
Diplodonta orbella Gould 1851 clam
 Cardiida - Veneridae
"Venerella subdiaphana" = Compsomyax subdiaphana, "Saxidomus nuttallii" = Saxidomus nuttalli
"Venerella subdiaphana" = Compsomyax subdiaphana Carpenter 1864 venus clam
"Saxidomus nuttallii" = Saxidomus nuttalli Conrad 1837 venus clam
 Solenida - Solenidae
Solen sicarius Gould 1850 clam
 Hiatellida - Hiatellidae
Panopea generosa Gould 1850 clam
Panomya ampla Dall 1898 clam
 Pandorida - Pandoridae
Pandora grandis Dall 1877 clam
 Thraciida - Thraciidae
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides Conrad 1849 clam
 Lucinida - Lucinidae
"Lucina annulata" = Lucinoma annulatum, "Lucina californica" = Epilucina californica
"Lucina annulata" = Lucinoma annulatum Reeve 1850 clam
"Lucina californica" = Epilucina californica Conrad 1837 clam
 Carditida - Carditidae
"Cardita ventricosa" = Coanicardita ventricosa
"Cardita ventricosa" = Coanicardita ventricosa Gould 1850 clam
 Nuculanida - Yoldiidae
"Yoldia scissurata" = Yoldia (Cnesterium) aeolica
"Yoldia scissurata" = Yoldia (Cnesterium) aeolica Valenciennes 1846 clam
 Nuculida - Nuculidae
"Acila castrensis" = Acila (Truncacila) castrensis
"Acila castrensis" = Acila (Truncacila) castrensis Hinds 1843 divaricate nutclam
Gastropoda
 Sorbeoconcha - Ranellidae
Fusitriton oregonensis Redfield 1846 triton shell
 Neogastropoda - Fasciolariidae
Barbarofusus barbarensis Trask 1855 snail
 Neogastropoda - Buccinidae
""Exilia" rectirostris" = Exilioidea rectirostris
""Exilia" rectirostris" = Exilioidea rectirostris Carpenter 1864 true whelk
 Neotaenioglossa - Calyptraeidae
"Crepidula lingulata" = Crepipatella lingulata
"Crepidula lingulata" = Crepipatella lingulata Gould 1846 slipper shell
 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
 Trochoidea - Trochidae
Calliostoma canaliculatum Lightfoot 1786 top snail
Calliostoma annulatum Lightfoot 1786 top snail
"Tegula montereyi" = Chlorostoma montereyi Kiener 1850 top snail
 Trochoidea - Turbinidae
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum Dall 1885 snail
Pomaulax gibberosa Dillwyn 1817 red turban
 Seguenzioidea - Eucyclidae
Turcica caffea Gabb 1865 snail