CIT Loc. 264 (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: Basal 2 ft of Bed No. 1 resting directly on Miocene shale. Foraminifera extremely 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 202632: 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
 Neogastropoda - Muricidae
Bivalvia
 Nuculanida - Nuculanidae
Gastropoda
 Trochoidea - Solariellidae
"Solariella peramabilis" = Minolia peramabilis
"Solariella peramabilis" = Minolia peramabilis Carpenter 1864 snail
 Trochoidea - Turbinidae
Pomaulax gibberosa Dillwyn 1817 red turban
 Trochoidea - Trochidae
"Tegula montereyi" = Chlorostoma montereyi
"Tegula montereyi" = Chlorostoma montereyi Kiener 1850 top snail
 Lepetellida - Fissurellidae
Puncturella galeata, "Puncturella cucullata" = Craniopsis cucullata
Puncturella galeata Gould 1846 puncturella
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella
 Seguenzioidea - Eucyclidae
Cidarina cidaris Adams 1864 snail
 Pseudomelanoidea - Pseudomelaniidae
"Antiplanes perversa" = Antiplanes catalinae
"Antiplanes perversa" = Antiplanes catalinae Raymond 1904 snail
 Neotaenioglossa - Calyptraeidae
Crepidula princeps, "Crepidula lingulata" = Crepipatella lingulata
Crepidula princeps Conrad 1855 slipper shell
"Crepidula lingulata" = Crepipatella lingulata Gould 1846 slipper shell
 Sorbeoconcha - Procerithiidae
"Bittium catalinense" = Lirobittium catalinensis, "Bittium ornatissimum" = Lirobittium armillatum, "Bittium asperum" = Lirobittium asperum, "Bittium larum" = Lirobittium larum
"Bittium catalinense" = Lirobittium catalinensis Bartsch 1907 snail
"Bittium ornatissimum" = Lirobittium armillatum Carpenter 1864 snail
"Bittium asperum" = Lirobittium asperum Gabb 1861 snail
"Bittium larum" = Lirobittium larum Bartsch 1911 snail
 Neogastropoda - Muricidae
Boreotrophon pacificus Dall 1902 murex snail
 Neogastropoda - Fasciolariidae
Barbarofusus barbarensis Trask 1855 snail
 Neogastropoda - Columbellidae
Amphissa reticulata Dall 1916 snail
Mitrella gausapata Gould 1850 snail
 Neogastropoda - Nassariidae
"Nassarius cooperi" = Hima cooperi
"Nassarius cooperi" = Hima cooperi Forbes 1852 snail
 Neogastropoda - Borsoniidae
Borsonella bartschi Arnold 1903 snail
 Neogastropoda - Olividae
"Olivella pedroana" = Callianax pedroana, "Olivella biplicata" = Callianax biplicata
"Olivella pedroana" = Callianax pedroana Conrad 1855 olive snail
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail
 Sorbeoconcha - Naticidae
"Neverita reclusiana" = Glossaulax reclusiana
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
Bivalvia
 Cardiida - Cardiidae
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum
""Protocardia" centifilosa" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
 Poromyida - Poromyidae
"Poromya tenuiconcha" = Dermatomya tenuiconcha
"Poromya tenuiconcha" = Dermatomya tenuiconcha Dall 1913 clam
 Lucinida - Lucinidae
"Lucina annulata" = Lucinoma annulatum
"Lucina annulata" = Lucinoma annulatum Reeve 1850 clam
 Carditida - Carditidae
"Cardita ventricosa" = Coanicardita ventricosa
"Cardita ventricosa" = Coanicardita ventricosa Gould 1850 clam
 Pectinida - Pectinoidae
Chlamys jordani Arnold 1903 scallop
Gymnolaemata
 Cheilostomata - Cellariidae
Stenolaemata
 Cyclostomata - Multisparsidae
Idmonea californica Conrad 1855