USGS M5064, Baldwin Creek: Langhian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Thecostraca
- Balanomorpha
- Balanidae
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Balanus sp.
Da Costa 1778
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Gastropoda
- Neogastropoda
- Olividae
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Oliva sp.
Bruguière 1789
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Gastropoda
- Naticidae
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? Polinices sp.
Monfort 1810
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Pectinida
- Pectinidae
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Pectinidae indet.
Wilkes 1810
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| as "Pecten sp." | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Santa Cruz |
| Coordinates: | 37.0° North, 122.1° West (view map) | ||||
| Paleocoordinates: | 33.7° North, 114.5° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 140 meters | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Langhian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Langhian | ||
| Age range of interval: | 15.98000 - 13.82000 m.y. ago |
Stratigraphy
| Formation: | Lompico Sandstone | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Near base of Lompico Sandstone. Up to 240 m thick; intertongues with Monterey Formation; angular unconformity with Butano Sandstone below; noncomformably overlies crystaline basement in places, also Locatelli Formation and Zayante Sandstone; conformably overlain by Monterey Formation | |||||
Lithology and environment
| Primary lithology: | medium,gray,yellow sandstone |
| Includes fossils? | Y |
| Lithology description: Thick-bedded to massive yellowish-gray arkosic sandstone; light-gray, moderately sorted, granular medium-grained, biotite bearing arkosic sandstone | |
| Environment: | coastal indet. |
| Glacial or sequence phase: | transgressive |
| Geology comments: A transgressive sandstone unit. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some microfossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | UMMP |
| Collection method comments: Also collections at USGS, Menlo Park | |
| Taxonomic list comments:Representative for molluscan, echinoid and cirriped taxa; does not include mentioned foraminifera | |
Metadata
| Database number: | 37523 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-03-16 11:23:40 | Last modified: | 2015-04-11 23:24:53 |
| Access level: | the public | Released: | 2004-03-16 11:23:40 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10039. | J. C. Clark. 1981. Stratigraphy, paleontology, and geology of the Central Santa Cruz Mountains, California Coast Ranges. United States Geological Survey Professional Paper 1168:1-51 [A. Miller/A. Hendy/R. McClees-Funinan] |