USGS 14033 - Tamaulipas, Mexico (Limestone, upper Oligocene): Late/Upper Oligocene, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pholadida
- Teredinidae
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Kuphus incrassatus
Gabb 1873
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| see common names | |||||||
Geography
| Country: | Mexico | State/province: | Tamaulipas |
| Coordinates: | 24.9° North, 98.2° West (view map) | ||
| Paleocoordinates: | 25.6° North, 93.1° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Late/Upper Oligocene | ||
| Age range of interval: | 27.82000 - 23.03000 m.y. ago |
Stratigraphy
| Member: | Limestone | ||||
| Local section: | Mendez | ||||
| Regional section: | Tamaulipas | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The upper Oligocene in northeastern Mexico is more than 500 ft thick. Two horizons distinct in lithology and in fossil content are included: a lower limestone with a fauna allied to to that of the Chickasawhay and Suwanee Limestones, and an upper sandstone with faunas closely related to the Vicksburg Group. | |||||
Lithology and environment
| Primary lithology: | gray,white "limestone" |
| Includes fossils? | Y |
| Lithology description: Light gray to creamy white limestone weathering dark gray. | |
| Environment: | shallow subtidal indet. |
| Geology comments: Carbonate, shallow water. No paleoenvironmental data reported. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collections reposited in USGS and USNM collections. | |
| Taxonomic list comments:Exhaustive for mollusca. | |
Metadata
| Also known as: | USGS 14033 | ||
| Database number: | 43086 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-08-10 09:26:58 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-08-10 09:26:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 7474. | J. Gardner. 1945. Mollusca of the Tertiary formations of Northeastern Mexico. Geological Society of American Memoir 11 [M. Kosnik/M. Kosnik/M. Kosnik] |