Alabama Highway 37 Sample 90-11-15-2b: Late/Upper Santonian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Ostracoda
- Platycopida
- Cytherellidae
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Cytherella tuberculifera
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Ostracoda
- Podocopida
- Bairdiidae
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Antibythocypris nephrotrema
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Ostracoda
- Podocopida
- Cytheruridae
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Eocytheropteron mutafoveata n. sp.
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| original and current combination Cytheropteron (Eocytheropteron) | |||||||
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Ostracoda
- Podocopida
- Trachyleberididae
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Brachycythere asymmetrica
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Fissocarinocythere gapensis
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Ostracoda
- Podocopida
- Cytherideidae
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? Haplocytheridea eutawensis n. sp.
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Russell |
| Coordinates: | 32.4° North, 85.4° West (view map) | ||||
| Paleocoordinates: | 32.4° North, 54.5° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Santonian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Late/Upper Santonian | ||
| Age range of interval: | 86.30000 - 83.60000 m.y. ago |
Stratigraphy
| Formation: | Eutaw | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "late Santonian age (Zone 16 of Sissingh, 1977)" based on calcareous nannofossils | |||||
Lithology and environment
| Primary lithology: | micaceous poorly lithified sandy,calcareous mudstone |
| Lithology description: "fairly loose, sandy, calcareous, micaceous, silty mud, with rare plant debris" | |
| Environment: | reef, buildup or bioherm |
| Geology comments: brackish environment oyster reef | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection size: | 300 specimens |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Lousiana State University and Geological Survey of Alabama collections
"300 specimens were picked from each sample... The samples were then picked extensively for the less abundant species" | |
Metadata
| Database number: | 93951 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2010-02-07 11:17:31 | Last modified: | 2010-02-07 13:17:31 |
| Access level: | the public | Released: | 2010-02-07 11:17:31 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 4140. | T. M. Puckett. 1994. New Ostracoda species from an Upper Cretaceous oyster reef, northern Gulf Coastal Plain, U.S.A. Journal of Paleontology 68(6):1321-1335 [W. Kiessling/W. Kiessling/J. Alroy] |