Braggs-Pine Barren-beds 3-6: Danian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Cliona microtuberum
Stephenson 1941
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Anthoza indet.
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Echinoidea
- Cidaroida
- Cidaridae
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Cidaris sp.
Leske 1778
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Stenolaemata
- Cyclostomata
- Cerioporidae
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Ceriopora vesiculosa
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Stenolaemata
- Cyclostomata
- Entalophoridae
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Entalophora sp.
Lamoureux 1821
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Stenolaemata
- Cyclostomata
- Plagioeciidae
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? Plagioecia sp.
Canu 1918
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Stenolaemata
- Cyclostomata
- Tubuliporidae
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Pleuronea alveolata
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Gymnolaemata
- Cheilostomata
- Onychocellidae
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Euritina tecta
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Gymnolaemata
- Cheilostomata
- Antroporidae
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? Antropora damicornis
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? Antropora sp.
Norman 1903
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Polychaeta
- Serpulimorpha
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Hamulus onyx
Morton 1834
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Polychaeta
- Sabellida
- Serpulidae
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Serpula sp.
Linnaeus 1758
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Serpula ? adnata
Wade 1926
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Bivalvia
- Mytilida
- Mytilidae
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Botula carolinensis
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Bivalvia
- Ostreida
- Flemingostreidae
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Ostrea tecticosta
Gabb 1860
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| recombined as Cubitostrea tecticosta | ||||||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Gryphaeostrea vomer
(Morton 1828)
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Exogyra costata
(Say 1820)
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| original and current combination Exogyra (Exogyra) costata | ||||||||||
| Reworked? | ||||||||||
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Bivalvia
- Pectinida
- Anomiidae
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Anomia argentaria
Morton 1833
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| Reworked? | ||||||||||
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites sp.
Lamarck 1799
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| Reworked? | ||||||||||
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Malacostraca
- Decapoda
- Callianassidae
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Callianassa sp.
Leach 1814
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Malacostraca
- Decapoda
- Xanthidae
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Xanthidae informal sp. A
MacLeay 1838
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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: | 66.00000 - 61.60000 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: | lithified silty,sandy "limestone" |
| Secondary lithology: | glauconitic poorly lithified silty,sandy sandstone |
| Lithology description: Beds 3-6 Consists of alternating indurated and unconsolidated sandy calcareous silts and limestones. Bed 3 is well cemented micritic lithified limestone. Bed 4 is poorly lithified calcareous glaucanitic silty sand. Bed 5 is lithified limestone w/ recrystallized fossils. Bed 6 is unlithified sandy silt. 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: | 83261 | ||
| Authorizer: | A. Miller | Enterer: | J. Sessa |
| Modifier: | L. Eccles | Research group: | GCP,marine invertebrate |
| Created: | 2008-08-14 08:14:45 | Last modified: | 2010-10-04 08:54:31 |
| Access level: | the public | Released: | 2008-08-14 08:14:45 |
| 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] |