Woodring Loc. 40 - 3rd St [Timms Point Silt]: Middle Pleistocene, California
collected by W. Woodring 1930
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Cardiida
- Veneridae
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Compsomyax subdiaphana
(Carpenter 1864)
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Bivalvia
- Cardiida
- Tellinidae
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Macoma calcarea
(Gmelin 1792)
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| recombined as Macoma (Macoma) calcarea | |||||||
| 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: | outcrop |
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 | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHY: From the Timms Point Silt, which is locally overlain by the San Pedro Sand, and overlies at 2nd St the Lomita Marl. AGE: Lower Pleistocene in Woodring et al. (1946) and Valentine PhD, but is now regarded as Middle Pleistocene [A. Hendy]. STRATIGRAPHIC POSITION: From unknown position within Timms Point Silt. | |||||
Lithology and environment
| Primary lithology: | poorly lithified siltstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Not listed, but generally a poorly consolidated silt. LITHIFICATION: Not stated, but typically poorly lithified. | |
| Environment: | offshore |
| Geology comments: ENVIRONMENT: Typically containing a offshore shelf fauna. | |
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Degree of concentration: | -lag |
| Size of fossils: | macrofossils,mesofossils |
| Temporal resolution: | time-averaged |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection excludes: | some genera | ||
| Collection methods: | surface (float),surface (in situ) | ||
| Reason for describing collection: | paleoecologic analysis | ||
| Museum repositories: | USGS,USNM | ||
| Collectors: | W. Woodring | Collection dates: | 1930 |
| Collection method comments: COLLECTOR: W. Woodring, 1930. REPOSITORY: USGS, now Smithsonian. | |||
| Taxonomic list comments:COVERAGE: Limited to molluscs listed or figured in text. NOMENCLATURE: Updated to 1960s era, so somewhat antiquated but standardized and typically resolved to species resolution. | |||
Metadata
| Also known as: | USGS 12208; W38-30 | ||
| Database number: | 223315 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2021-11-08 01:05:42 | Last modified: | 2021-11-13 23:30:48 |
| Access level: | authorizer only | Released: | 2022-05-08 01:05:42 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 41105. | W. P. Woodring, M. N. Bramlette, and W. S. W. Kew. 1946. Geology and Paleontology of Palos Verdes Hills, California. US Geological Survey Professional Paper 207:1-145 [M. Uhen/M. Shalap/M. Uhen] |
Secondary references:
| 78446 | J.Q. Burch. 1944. Distributional List of the West American Marine Molluscs from San Diego, California to the Polar Sea. Proceedings of the Conch Club of Southern California [A. Hendy/A. Hendy] | |
| 78337 | A. Hendy. 2021. A review of the Quaternary Mollusca of the Palos Verdes Peninsula. [A. Hendy/A. Hendy] |