USGS 14041 - Tamaulipas, Mexico (Oakville Sandstone): Middle Miocene, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea cf. cahobasensis
Pilsbry and Brown 1910
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| recombined as Striostrea cahobasensis | |||||||
| see common names | |||||||
Geography
| Country: | Mexico | State/province: | Tamaulipas |
| Coordinates: | 26.1° North, 98.3° West (view map) | ||
| Paleocoordinates: | 26.6° North, 95.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Middle Miocene | ||
| Age range of interval: | 15.98000 - 11.63000 m.y. ago |
Stratigraphy
| Formation: | Oakville Sandstone | ||||
| Local section: | Rancho Soledad | ||||
| Regional section: | Tamaulipas | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: A resistant scarp-making scanstone. Does not include a fauna sufficient diagnostic to establish the relative ages of the unit to the higher beds of the Guajalote Formation. Typically a very hard, calcareous sandstone. Has some faunal similarity with the Thomonde formation (lower Miocene) of Haiti. This would suggest an age as older if not older than the Guajalote Fm. The author appears to correlate this unit to the Oakville Sandstone of Texas and gives it a middle Miocene age however. | |||||
Lithology and environment
| Primary lithology: | lithified calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: Hard, calcareous sandstone, typically quartzose. | |
| Environment: | coastal indet. |
| Glacial or sequence phase: | regressive |
| Geology comments: Siliciclastic, shallow water. No paleoenvironmental data reported. | |
Taphonomy
| Modes of preservation: | body,mold/impression |
| 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 14041 | ||
| Database number: | 43093 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-08-10 09:45:04 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-08-10 09:45:04 |
| 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] |