CIT Loc. 77 (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: 4 ft stratigraphically higher in bed no. 2.

• 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 202645: 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.
Gastropoda
 Sorbeoconcha - Naticidae
"Neverita reclusiana" = Glossaulax reclusiana, Euspira lewisii
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
Euspira lewisii Gould 1847 moon snail
 Neogastropoda - Buccinidae
"Neptunea tabulata" = Neptunea (Sulcosipho) tabulata, ""Exilia" rectirostris" = Exilioidea rectirostris
"Neptunea tabulata" = Neptunea (Sulcosipho) tabulata Baird 1863 true whelk
""Exilia" rectirostris" = Exilioidea rectirostris Carpenter 1864 true whelk
 Neogastropoda - Olividae
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail
 Neotaenioglossa - Calyptraeidae
Crepidula nummaria Gould 1846 slipper shell
 Pseudomelanoidea - Pseudomelaniidae
Antiplanes santarosana Dall 1902 snail
 Cerithioidea - Turritellidae
"Turritella jewettii" = Turritella cooperi, "Bittium giganteum" = Tachyrhynchus giganteus
"Turritella jewettii" = Turritella cooperi Carpenter 1864 turret shell
"Bittium giganteum" = Tachyrhynchus giganteus Bartsch 1911 turret shell
 Seguenzioidea - Eucyclidae
Cidarina cidaris Adams 1864 snail
 Trochoidea - Solariellidae
"Solariella peramabilis" = Minolia peramabilis
"Solariella peramabilis" = Minolia peramabilis Carpenter 1864 snail
 Trochoidea - Trochidae
"Tegula montereyi" = Chlorostoma montereyi Kiener 1850 top snail
Calliostoma canaliculatum Lightfoot 1786 top snail
Bivalvia
 Pectinida - Pectinoidae
""Pecten" caurinus" = Patinopecten caurinus, "Chlamys hastatus" = Chlamys hastata, Chlamys jordani
""Pecten" caurinus" = Patinopecten caurinus Gould 1850 scallop
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
SUBSPECIES: Chlamys hastatus hastatus
Chlamys jordani Arnold 1903 scallop
 Mytilida - Mytilidae
"Volsella fornicata" = Modiolus carpenteri
"Volsella fornicata" = Modiolus carpenteri Soot-Ryen 1963 mussel
 Lucinida - Lucinidae
"Lucina californica" = Epilucina californica, "Lucina annulata" = Lucinoma annulatum
"Lucina californica" = Epilucina californica Conrad 1837 clam
"Lucina annulata" = Lucinoma annulatum Reeve 1850 clam
 Lucinida - Thyasiridae
"Thyasira gouldii" = Thyasira flexuosa
"Thyasira gouldii" = Thyasira flexuosa Montagu 1803 clam
 Solenida - Solenidae
Solen sicarius Gould 1850 clam
 Pandorida - Pandoridae
Pandora grandis Dall 1877 clam
"Pandora filosa" = Pandora (Pandorella) filosa Carpenter 1863 clam
 Cardiida - Cardiidae
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum, "Cerastoderma corbis" = Clinocardium (Clinocardium) nuttallii
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
"Cerastoderma corbis" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle
 Cardiida - Tellinidae
"Macoma calcarea" = Macoma (Macoma) calcarea
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam
 Cardiida - Veneridae
"Venus perlaminosa" = Humilaria perlaminosa, "Venerella subdiaphana" = Compsomyax subdiaphana
"Venus perlaminosa" = Humilaria perlaminosa Conrad 1855 venus clam
"Venerella subdiaphana" = Compsomyax subdiaphana Carpenter 1864 venus clam
 Pholadida - Myidae
"Mya truncata" = Mya (Mya) truncata
"Mya truncata" = Mya (Mya) truncata Linnaeus 1758 softshell clam
 Carditida - Carditidae
"Cardita ventricosa" = Coanicardita ventricosa
"Cardita ventricosa" = Coanicardita ventricosa Gould 1850 clam
 Nuculanida - Nuculanidae
"Nuculana taphria" = Saccella taphria
"Nuculana taphria" = Saccella taphria Dall 1896 pointed nut clam
 Nuculanida - Yoldiidae
"Yoldia scissurata" = Yoldia (Cnesterium) aeolica
"Yoldia scissurata" = Yoldia (Cnesterium) aeolica Valenciennes 1846 clam
Rhynchonellata
 Terebratulida - Terebrataliidae
 Terebratulida - Laqueidae
Laqueus californicus Koch 1848
SUBSPECIES: Laqueus californicus vancouverensis