CIT Loc. 321: Middle Pleistocene, California
collected by A. Clark 1929
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana taphria
(Dall 1896)
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C category | |||||||||
recombined as Saccella taphria | ||||||||||
Bivalvia
- Nuculida
- Nuculidae
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Acila castrensis
(Hinds 1843)
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R category | |||||||||
recombined as Acila (Truncacila) castrensis | ||||||||||
Bivalvia
- Pectinida
- Pectinidae
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Pecten diegensis
Dall 1898
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R category | |||||||||
recombined as Leopecten diegensis | ||||||||||
SUBSPECIES: Pecten diegensis stearnsii | ||||||||||
"Pecten" caurinus
Gould 1850
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R category | |||||||||
recombined as Patinopecten caurinus | ||||||||||
Chlamys jordani
(Arnold 1903)
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R category | |||||||||
synonym of Chlamys rubida | ||||||||||
Chlamys hastatus
(Sowerby 1842)
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R category | |||||||||
recombined as Chlamys hastata | ||||||||||
SUBSPECIES: Chlamys hastatus hastatus | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
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"Protocardia" centifilosa
(Carpenter 1864)
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R category | |||||||||
recombined as Nemocardium (Keenaea) centifilosum | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
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Macoma calcarea
(Gmelin 1792)
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R category | |||||||||
recombined as Macoma (Macoma) calcarea | ||||||||||
Bivalvia
- Cardiida
- Semelidae
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Semele rubropicta
Dall 1871
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R category | |||||||||
recombined as Semele (Semele) rubropicta | ||||||||||
Bivalvia
- Cardiida
- Veneridae
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Venus perlaminosa
(Conrad 1855)
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R category | |||||||||
recombined as Humilaria perlaminosa | ||||||||||
Venerella subdiaphana
(Carpenter 1864)
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R category | |||||||||
recombined as Compsomyax subdiaphana | ||||||||||
Bivalvia
- Hiatellida
- Hiatellidae
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Panopea generosa
Gould 1850
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R category | |||||||||
Bivalvia
- Lucinida
- Lucinidae
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Lucina annulata
Reeve 1850
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C category | |||||||||
recombined as Lucinoma annulatum | ||||||||||
Bivalvia
- Carditida
- Carditidae
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Cardita ventricosa
Gould 1850
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R category | |||||||||
recombined as Coanicardita ventricosa | ||||||||||
Gastropoda
- Epitoniidae
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Epitonium indianorum
(Carpenter 1864)
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R category | |||||||||
Gastropoda
- Turritellidae
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Turritella cooperi
Carpenter 1864
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R category | |||||||||
Gastropoda
- Pseudomelaniidae
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Antiplanes perversa
(Gabb 1865)
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R category | |||||||||
recombined as Spirotropis (Antiplanes) perversa | ||||||||||
see common names |
Geography
Country: | United States | State/province: | California | County: | Los Angeles |
Coordinates: | 33.7° North, 118.3° West (view map) | ||||
Paleocoordinates: | 33.7° North, 118.3° West | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | small collection |
Time
Period: | Quaternary | Epoch: | Pleistocene |
Stage: | Chibanian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Middle Pleistocene | ||
Age range of interval: | 0.77400 - 0.12900 m.y. ago |
Stratigraphy
Formation: | Timms Point Silt | ||||
Local section: | Timms Point | Local bed: | 2 | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: 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. 2 resting directly on Miocene. |
Lithology and environment
Primary lithology: | unlithified siltstone |
Includes fossils? | Y |
Lithology description: LITHOLOGY: shale. LITHIFICATION: not reported in text, but fossils in LACMIP collection from these localities are unlithified. | |
Environment: | offshore |
Geology comments: ENVIRONMENT: fauna is characteristic of offshore soft-bottom settings. |
Taphonomy
Modes of preservation: | body,original aragonite,original calcite |
Degree of concentration: | dispersed |
Size of fossils: | macrofossils,mesofossils |
Preservation of anatomical detail: | good |
Abundance in sediment: | common |
Spatial resolution: | autochthonous |
Collection methods and comments
Collection methods: | bulk,surface (float),surface (in situ),field collection | ||
Reason for describing collection: | paleoecologic analysis | ||
Museum repositories: | CIT,LACM | ||
Collectors: | A. Clark | Collection dates: | 1929 |
Collection method comments: COLLECTOR: A. Clark, 1929. REPOSITORY: LACMIP, including former CIT collections. | |||
Taxonomic list comments:COVERAGE: Exhaustive for invertebrates. NOMENCLATURE: Antiquated, but mostly with species-resolution identifications. |
Metadata
Database number: | 202640 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2019-07-16 16:24:22 | Last modified: | 2019-07-16 16:57:21 |
Access level: | authorizer only | Released: | 2020-01-16 16:24:22 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
69437. | 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] |