USGS 14647 - Graciosa Ridge [Careaga Sandstone]: Gelasian, California
collected by W. Woodring
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Arcida
- Arcidae
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Anadara trilineata
(Conrad 1856)
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Bivalvia
- Carditida
- Carditidae
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Cyclocardia californica
(Dall 1903)
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| recombined as Coanicardita californica | |||||||
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Bivalvia
- Cardiida
- Veneridae
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Saxidomus cf. nuttalli
Conrad 1837
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Gastropoda
- Turritellidae
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Turritella cooperi
Carpenter 1864
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Gastropoda
- Vermetidae
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Aletes squamigerus
Carpenter 1857
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| recombined as Thylacodes squamigerus | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Santa Barbara |
| Coordinates: | 34.8° North, 120.4° West (view map) | ||||
| Paleocoordinates: | 34.7° North, 119.8° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Gelasian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Gelasian | ||
| Age range of interval: | 2.58000 - 1.80000 m.y. ago |
Stratigraphy
| Formation: | Careaga Sandstone | Member: | Cebada | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHY: From the Cebada Member of the Careaga Sandstone, which overlies the Foxen Mudstone (mid-late Pliocene) and underlies the Paso Robles Fm (Pleistocene). AGE: Late Pliocene, on the basis of foraminiferal and microfossil biostratigraphy. | |||||
Lithology and environment
| Primary lithology: | poorly lithified silty sandstone |
| Includes fossils? | Y |
| Lithology description: LITHOLOGY: Fine-grained sandstone. LITHIFICATION: Assumed poorly lithified on the basis of figured specimens. | |
| Environment: | offshore |
| Geology comments: PALEOENVIRONMENT: Established on the basis of faunal composition. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | USNM |
| Collectors: | W. Woodring |
| Collection method comments: COLLECTORS: Not reported, but assumed to be W. Woodring. REPOSITORY: Smithsonian (USNM). | |
| Taxonomic list comments:COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Somewhat antiquated nomenclature. | |
Metadata
| Also known as: | Woodring Loc. 171; W622 | ||
| Database number: | 189758 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2017-11-05 10:40:20 | Last modified: | 2020-06-14 01:37:05 |
| Access level: | the public | Released: | 2017-11-05 10:40:20 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 10621. | W. P. Woodring and M.N. Bramlette. 1950. Geology and paleontology of the Santa Maria District California. United States Geological Survey Professional Paper 222:1-185 [A. Miller/A. Hendy/S. Ávila] |
Secondary references:
| 72722 | A. Buczek, A. Hendy, M. Hopkins and J. Sessa. 2020. On the reconciliation of biostratigraphy and strontium isotope stratigraphy of three southern Californian Plio-Pleistocene formations. Geological Society America Bulletin 133(1-2):100-114 [A. Hendy/A. Hendy/J. Marcot] |