Randons Creek (Unit 3, Byram Formation), Alabama - Ivey (1957): Late/Upper Oligocene, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Lepidocyclinidae
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Lepidocyclina sp.
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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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Pecten byramensis
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Chlamys anatipes
(Morton 1833)
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| recombined as Anatipopecten anatipes | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Monroeville |
| Coordinates: | 31.4° North, 87.6° West (view map) | ||||
| Paleocoordinates: | 31.8° North, 82.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | local area |
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: | Byram | Member: | Glendon | ||
| Local section: | Randons Creek | Local bed: | Unit 3 | ||
| Regional section: | Monroeville | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Unit 4 is a limestone, referred to as Glendon Limestone Member of the Byram Formation and is 14 ft thick. It underlies the 5.5 ft thick Marl member and overlies the 7 ft thick lower limestone unit of the Glendon Limestone member of the Byram Formation. The Byram Formation overlies the 1 ft + thick Marianna Limestone. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal,gray,white lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: Limestone, white to gray, hard and dense but containing soft streaks and solution cavities, which can give it a horesbone appearence. Contains ledges almost entirely of shells. | |
| Environment: | carbonate indet. |
| Geology comments: No paleoenvironmental data provided. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | selective quarrying,field collection,observed (not collected) |
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: Unknown repository. Page 86 | |
| Taxonomic list comments:Probably not representative. Includes mollusca and foraminifera. | |
Metadata
| Also known as: | Unit 3, Glendon Limestone Member (Byram Formation), Randons Creek | ||
| Database number: | 42161 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-07-25 00:02:57 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2004-07-25 00:02:57 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11240. | J. B. Ivey. 1957. Geology and ground water in the Monroeville area, Alabama. Geological Survey of Alabama Bulletin 66 [A. Miller/A. Hendy/A. Hendy] |