Alabama Hwy 29, (Unit 5, Chickasawhay Lmst.) - Toulmin et al (1951): Late/Upper Oligocene, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea vicksburgensis
Conrad 1848
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| recombined as Lopha (Lopha) vicksburgensis | |||||||
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys howei
Mansfield 1940
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Gastropoda
- Turritellidae
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Turritella cf. gatunensis
Conrad 1857
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Choctaw |
| Coordinates: | 32.0° North, 88.3° West (view map) | ||||
| Paleocoordinates: | 32.4° North, 82.9° 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
| Formation: | Chickasawhay Limestone | ||||
| Local section: | Alabama Hwy 29 | Local bed: | 5 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 4 ft of clay (Unit 5), Chicasawhay Limestone (20+ ft thick), overlain by 3.5 ft of Paynes Hammock Sand. Near middle of formation. Choctaw regional section. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal,gray,blue poorly lithified calcareous claystone |
| Includes fossils? | Y |
| Lithology description: Clay, blue-gray, calcareous, very fossiliferous, plastic, breaks up into blocks upon drying. | |
| Environment: | offshore |
| Geology comments: No paleoenvironmental information reported. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,field collection,observed (not collected) |
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: Unknown repository. Page 136. | |
| Taxonomic list comments:Probably not complete. Only mollusca. | |
Metadata
| Also known as: | Unit 5, Chickasawhay Limestone, Alabama Hwy 29 section | ||
| Database number: | 42152 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
| Created: | 2004-07-24 23:06:27 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-07-24 23:06:27 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11239. | L.D. Toulmin, P.E. La Moreaux, and C.R. Lanphere. 1951. Geology and ground-water resources of Choctaw County, Alabama. Geological Survey of Alabama Special Report 21 [A. Miller/A. Hendy/A. Hendy] |