Near Lomita - lower beds [Lomita Marl] (Pleistocene of the United States)

Where: California (33.8° N, 118.3° W: paleocoordinates 33.8° N, 118.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lomita Marl Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• LITHOSTRATIGRAPHY: From the Lomita Marl, which is locally overlain by the Timms Point Silt and San Pedro Sand. AGE: Early Pleistocene in Woodring et al. (1946) and Valentine PhD, but is now regarded as Middle Pleistocene [A. Hendy]. STRATIGRAPHIC POSITION: From lower beds of the Lomita Marl.

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified, sandy, calcareous marl

• ENVIRONMENT: Typically containing and offshore fauna.
• SPECIFIC LITHOLOGY: Not listed, but generally a calcareous sandy marl. LITHIFICATION: Not stated, but typically unlithified to slightly poorly-lithified.

Size classes: macrofossils, mesofossils

Preservation: original aragonite, original calcite

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

• COLLECTOR: Unknown collector or date, but presumably c. 1920s. REPOSITORY: Unknown, but possibly CAS.

Primary reference: G. D. Hanna. 1923. Results of Preliminary Examination of Seven Samples of Sediments from near Lomita. Bulletin of the Southern California Academy of Sciences 22(2):64-68 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 203105: authorized by Austin Hendy, entered by Austin Hendy on 26.07.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Original identifications by G.D. Hanna, but quite antiquated; updated by Valentine (1950s).
Scaphopoda
 Dentaliida - Dentaliidae
"Dentalium pretiosum" = Antalis pretiosa
"Dentalium pretiosum" = Antalis pretiosa Nuttall in Sowerby 1860 tusk shell
Gastropoda
 Sorbeoconcha - Naticidae
"Neverita reclusiana" = Glossaulax reclusiana, "Euspira lewisi" = Euspira lewisii
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
"Euspira lewisi" = Euspira lewisii Gould 1847 moon snail
 Neogastropoda - Fasciolariidae
"Fusinus" sp. Rafinesque 1815 snail
 Neogastropoda - Buccinidae
"Buccinum" sp., "Kelletia kelleti" = Kelletia kelletii
"Buccinum" sp. Linnaeus 1758 true whelk
"Kelletia kelleti" = Kelletia kelletii Forbes 1852 true whelk
 Neogastropoda - Siphonaliidae
Calicantharus fortis Carpenter 1866 snail
 Neogastropoda - Conidae
""Lora" tabulata" = Propebela tabulata
""Lora" tabulata" = Propebela tabulata Carpenter 1864 cone shell
 Neogastropoda - Turridae
"Taranis strongi" = Decollidrillia strongi
"Taranis strongi" = Decollidrillia strongi Arnold 1903 turrid
 Sorbeoconcha - Ranellidae
Fusitriton oregonensis Redfield 1846 triton shell
 Pseudomelanoidea - Pseudomelaniidae
"Antiplanes perversa" = Antiplanes catalinae
"Antiplanes perversa" = Antiplanes catalinae Raymond 1904 snail
Bivalvia
 Pectinida - Pectinoidae
Chlamys rubida, "Chlamys hastatus" = Chlamys hastata, "Pecten diegensis" = Leopecten diegensis, "Pecten bellus" = Euvola bella
Chlamys rubida Hinds 1845 scallop
SUBSPECIES: Chlamys islandicus hindsi
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
"Pecten diegensis" = Leopecten diegensis Dall 1898 scallop
"Pecten bellus" = Euvola bella Conrad 1856 scallop
 Pectinida - Anomiidae
"Pododesmus macrochisma" = Pododesmus (Monia) macrochisma
"Pododesmus macrochisma" = Pododesmus (Monia) macrochisma Deshayes 1839 scallop
 Arcida - Glycymerididae
"Glycymeris subobsoleta" = Glycymeris septentrionalis
"Glycymeris subobsoleta" = Glycymeris septentrionalis Middendorf 1849 clam
 Cardiida - Cardiidae
"Nemocardium centifilosum" = Nemocardium (Keenaea) centifilosum
"Nemocardium centifilosum" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
 Cardiida - Veneridae
"Antigona fordi" = Globivenus fordii
"Antigona fordi" = Globivenus fordii Yates 1890 venus clam
 Lucinida - Lucinidae
"Lucinoma annulata" = Lucinoma annulatum
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 clam
 Carditida - Crassatellidae
"Eucrassatella fluctuata" = Hybolophus fluctuatus
"Eucrassatella fluctuata" = Hybolophus fluctuatus Carpenter 1864 clam
 Carditida - Carditidae
Cyclocardia sp. Conrad 1867 clam