Braggs-Pine Barren-10-11: Danian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
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Thalassinoidea indet.
(Latreille 1831)
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Gymnolaemata
- Cheilostomata
- Antroporidae
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? Antropora damicornis
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Stenolaemata
- Cyclostomata
- Cerioporidae
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Ceriopora vesiculosa
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Bivalvia
- Carditida
- Carditidae
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Venericardia sp.
Lamarck 1801
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Bivalvia
- Ostreida
- Gryphaeidae
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Gryphaeostrea vomer
(Morton 1828)
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea crenulimarginata
Gabb 1860
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Lowndes |
| Coordinates: | 32.1° North, 86.8° West (view map) | ||||
| Paleocoordinates: | 34.9° North, 66.8° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Danian | 10 m.y. bin: | Cenozoic 1 |
| Key time interval: | Danian | ||
| Age range of interval: | 66 - 61.6 m.y. ago |
Stratigraphy
| Geological group: | Midway | Formation: | Clayton | Member: | Pine Barren |
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The Clayton Formation disconformably overlies the Prairie Bluff Formation. | |||||
Lithology and environment
| Primary lithology: | glauconitic poorly lithified silty "limestone" |
| Secondary lithology: | glauconitic unlithified sandstone |
| Lithology description: Beds 10 & 11 Consists of alternating indurated and unconsolidated sandy calcareous silts and limestones approximately 1m thick. Bed 10 is unconsolidated glaucanitic sandy silt. Bed 11 is slightly lithified calcareous glaucanitic limestone. At Braggs there are numerous lithologies including limestones, marls, coarse transgressive lags and glauconitic sands. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection methods: | bulk,surface (in situ),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Some areas were sampled on the outcrop surface, others were excavated with pick and shovel and some more specimens came from screenwashing bulk sediments. Collection efforts were focused on the basal Clayton Formation. | |
Metadata
| Database number: | 83292 | ||
| Authorizer: | A. Miller | Enterer: | J. Sessa |
| Modifier: | L. Eccles | Research group: | GCP,marine invertebrate |
| Created: | 2008-08-15 05:21:39 | Last modified: | 2010-10-04 08:55:02 |
| Access level: | the public | Released: | 2008-08-15 05:21:39 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27936. | J. R. Bryan and D. S. Jones. 1989. Fabric of the Cretaceous-Tertiary Marine Macrofaunal Transition at Braggs, Alabama. Palaeogeography, Palaeoclimatology, Palaeoecology 69:279-301 [A. Miller/J. Sessa] |