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
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
Gastropoda | |
Bivalvia | |
Nuculana minuta praecursor pointed nut clam | |
Pecten diegensis stearnsii scallop
Chlamys hastatus hastatus scallop | |
Gymnolaemata | |
Stenolaemata | |
Idmonea californica Conrad 1855 | |
Rhynchonellata | |
"Laqueus californicus vancouverensis" = Laqueus vancouverensis
"Laqueus californicus vancouverensis" = Laqueus vancouverensis Davidson 1886 | |
Bivalvia | |
Chlamys jordani Arnold 1903 scallop | |
Monia macrochisma Deshayes 1839 scallop | |
"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 | |
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides Conrad 1849 clam | |
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle | |
"Pseudochama exogyra" = Chama exogyra
"Pseudochama exogyra" = Chama exogyra Conrad 1837 jewel box | |
"Cardita ventricosa" = Coanicardita ventricosa, "Cardita barbarensis" = Hippocampocardia barbarensis
"Cardita ventricosa" = Coanicardita ventricosa Gould 1850 clam
"Cardita barbarensis" = Hippocampocardia barbarensis Stearns 1890 clam | |
"Acila castrensis" = Acila (Truncacila) castrensis
"Acila castrensis" = Acila (Truncacila) castrensis Hinds 1843 divaricate nutclam | |
Gastropoda | |
| |
"Puncturella cucullata" = Craniopsis cucullata
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella | |
Cidarina cidaris Adams 1864 snail | |
Acteocina culcitella Gould 1853 barrel-bubble | |
"Epitonium indianorum" = Nitidiscala indianorum
"Epitonium indianorum" = Nitidiscala indianorum Carpenter 1864 wentletrap | |
"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
"Bittium ornatissimum" = Lirobittium armillatum Carpenter 1864 snail | |
Barbarofusus barbarensis Trask 1855 snail | |
Borsonella bartschi Arnold 1903 snail | |
"Boreotrophon orpheus praccursor" = Boreotrophon orpheus
"Boreotrophon orpheus praccursor" = Boreotrophon orpheus Gould 1842 murex snail | |
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail | |
Fusitriton oregonensis Redfield 1846 triton shell | |
"Tectonatica clausa" = Cryptonatica affinis
"Tectonatica clausa" = Cryptonatica affinis Gmelin 1791 moon snail | |
"Crepidula lingulata" = Crepipatella lingulata Gould 1846 slipper shell
Crepidula nummaria Gould 1846 slipper shell
Calyptraea mamillaris Broderip 1834 slipper shell | |
"Antiplanes perversa" = Antiplanes catalinae
"Antiplanes perversa" = Antiplanes catalinae Raymond 1904 snail | |
"Turritella cooperi" = Turritella cooperi, "Turritella jewettii" = Turritella cooperi
"Turritella cooperi" = Turritella cooperi Carpenter 1864 turret shell
"Turritella jewettii" = Turritella cooperi Carpenter 1864 turret shell |