CIT Loc. 136 (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: In middle and upper portion of bed no. 1

• 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 202636: 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
 Lepetellida - Fissurellidae
"Diadora aspera" = Diodora aspera, "Puncturella cucullata" = Craniopsis cucullata, Puncturella galeata
"Diadora aspera" = Diodora aspera Rathke 1833 snail
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella
Puncturella galeata Gould 1846 puncturella
 Trochoidea - Trochidae
Calliostoma canaliculatum Lightfoot 1786 top snail
 Trochoidea - Turbinidae
Pomaulax gibberosa Dillwyn 1817 red turban
 Seguenzioidea - Eucyclidae
Cidarina cidaris Adams 1864 snail
 Epitonioidea - Epitoniidae
Epitonium indianorum Carpenter 1864 wentletrap
 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
 Sorbeoconcha - Ranellidae
Fusitriton oregonensis Redfield 1846 triton shell
 Neogastropoda - Muricidae
Boreotrophon multicostatus Eschscholtz 1829 murex snail
Boreotrophon orpheus Gould 1842 murex snail
SUBSPECIES: Boreotrophon orpheus praccursor
Boreotrophon stuarti Smith 1880 murex snail
"Tritonalia barbarensis" = Paciocinebrina barbarensis Gabb 1865 murex snail
 Neogastropoda - Conidae
Propebela fidicula, ""Lora" tabulata" = Propebela tabulata, "Conus californicus" = Californiconus californicus
Propebela fidicula Gould 1849 cone shell
""Lora" tabulata" = Propebela tabulata Carpenter 1864 cone shell
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell
 Neogastropoda - Borsoniidae
Borsonella bartschi Arnold 1903 snail
 Neogastropoda - Clathurellidae
"Clathurella crystallina" = Crockerella crystallina, "Clathurella" sp.
"Clathurella crystallina" = Crockerella crystallina Gabb 1865 snail
"Clathurella" sp. Carpenter 1857 snail
 Neogastropoda - Mangeliidae
"Mangilia" oldroydi Arnold 1903 snail
 Neogastropoda - Pseudomelatomidae
""Clathrodrillia" renaudi" = Rhodopetoma renaudi
""Clathrodrillia" renaudi" = Rhodopetoma renaudi Arnold 1903 snail
 Neogastropoda - Nassariidae
"Nassarius mendicus" = Hima mendica, "Nassarius cooperi" = Hima cooperi, "Nassarius perpinguis" = Caesia perpinguis
"Nassarius mendicus" = Hima mendica Gould 1849 snail
"Nassarius cooperi" = Hima cooperi Forbes 1852 snail
"Nassarius perpinguis" = Caesia perpinguis Hinds 1844 snail
 Neogastropoda - Siphonaliidae
"Cantharus fortis" = Calicantharus fortis
"Cantharus fortis" = Calicantharus fortis Carpenter 1866 snail
 Neogastropoda - Columbellidae
Amphissa reticulata Dall 1916 snail
Mitrella gausapata Gould 1850 snail
 Neogastropoda - Fasciolariidae
Barbarofusus barbarensis Trask 1855 snail
Barbarofusus kobelti Dall 1877 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
 Sorbeoconcha - Naticidae
Euspira lewisii, "Tectonatica clausa" = Cryptonatica affinis
Euspira lewisii Gould 1847 moon snail
"Tectonatica clausa" = Cryptonatica affinis Gmelin 1791 moon snail
 Sorbeoconcha - Procerithiidae
"Bittium cf. rugatum" = Lirobittium rugatum, "Bittium ornatissimum" = Lirobittium armillatum
"Bittium cf. rugatum" = Lirobittium rugatum Carpenter 1866 snail
"Bittium ornatissimum" = Lirobittium armillatum Carpenter 1864 snail
 Pseudomelanoidea - Pseudomelaniidae
"Antiplanes perversa" = Antiplanes catalinae
"Antiplanes perversa" = Antiplanes catalinae Raymond 1904 snail
 Neotaenioglossa - Calyptraeidae
Crepidula adunca Sowerby 1824 slipper shell
Crepidula princeps Conrad 1855 slipper shell
Crepidula nummaria Gould 1846 slipper shell
"Crepidula lingulata" = Crepipatella lingulata Gould 1846 slipper shell
 Opisthobranchia - Cylichnidae
Acteocina harpa Dall 1871 barrel-bubble
Bivalvia
 Lucinida - Lucinidae
"Lucina annulata" = Lucinoma annulatum
"Lucina annulata" = Lucinoma annulatum Reeve 1850 clam
 Solenida - Solenidae
Solen sicarius Gould 1850 clam
 Hiatellida - Hiatellidae
Panomya ampla Dall 1898 clam
Panopea generosa Gould 1850 clam
 Cardiida - Cardiidae
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum, "Cerastoderma corbis" = Clinocardium (Clinocardium) nuttallii, "Trachycardium quadragenarium" = Dallocardia quadragenarium
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
"Cerastoderma corbis" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle
"Trachycardium quadragenarium" = Dallocardia quadragenarium Conrad 1837 cockle
 Cardiida - Tellinidae
"Macoma calcarea" = Macoma (Macoma) calcarea
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam
 Cardiida - Semelidae
"Semele incongrua" = Semele (Amphidesma) venusta
"Semele incongrua" = Semele (Amphidesma) venusta Reeve 1853 clam
 Cardiida - Chamidae
"Pseudochama exogyra" = Chama exogyra
"Pseudochama exogyra" = Chama exogyra Conrad 1837 jewel box
 Cardiida - Veneridae
"Venerella subdiaphana" = Compsomyax subdiaphana, "Saxidomus nuttallii" = Saxidomus nuttalli, "Psephidia ovalis" = Nutricola ovalis
"Venerella subdiaphana" = Compsomyax subdiaphana Carpenter 1864 venus clam
"Saxidomus nuttallii" = Saxidomus nuttalli Conrad 1837 venus clam
"Psephidia ovalis" = Nutricola ovalis Dall 1902 venus clam
 Poromyida - Poromyidae
"Poromya tenuiconcha" = Dermatomya tenuiconcha
"Poromya tenuiconcha" = Dermatomya tenuiconcha Dall 1913 clam
 Thraciida - Thraciidae
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides Conrad 1849 clam
 Carditida - Carditidae
"Cardita barbarensis" = Hippocampocardia barbarensis, "Cardita ventricosa" = Coanicardita ventricosa
"Cardita barbarensis" = Hippocampocardia barbarensis Stearns 1890 clam
"Cardita ventricosa" = Coanicardita ventricosa Gould 1850 clam
 Pectinida - Pectinoidae
"Chlamys hastatus" = Chlamys hastata, Chlamys rubida, Chlamys jordani, ""Pecten" caurinus" = Patinopecten caurinus
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
SUBSPECIES: Chlamys hastatus hastatus
Chlamys rubida Hinds 1845 scallop
SUBSPECIES: Chlamys islandicus hinds
Chlamys jordani Arnold 1903 scallop
""Pecten" caurinus" = Patinopecten caurinus Gould 1850 scallop
 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
Rhynchonellata
 Terebratulida - Terebrataliidae