Where: Lowndes County, Alabama (32.1° N, 86.8° W: paleocoordinates 34.9° N, 66.8° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Pine Barren Member (Clayton Formation), Danian (66.0 - 61.6 Ma)
• The Clayton Formation disconformably overlies the Prairie Bluff Formation.
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, silty, sandy limestone and poorly lithified, glauconitic, silty, sandy sandstone
•At Braggs there are numerous lithologies including limestones, marls, coarse transgressive lags and glauconitic sands.
Size class: mesofossils
Collection methods: bulk, surface (in situ),
• 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.
Primary reference: 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]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 83261: authorized by Arnold Miller, entered by Jocelyn Sessa on 14.08.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Malacostraca | |
Callianassa sp. Leach 1814 decapod | |
Xanthidae "sp. A" MacLeay 1838 stone crab | |
Polychaeta | |
Serpula sp. Linnaeus 1758
Serpula ? adnata Wade 1926 | |
Hamulus onyx Morton 1834 | |
Gymnolaemata | |
? Antropora sp. Norman 1903 | |
Stenolaemata | |
Entalophora sp. Lamoureux 1821 | |
? Plagioecia sp. Canu 1918 | |
Bivalvia | |
Botula carolinensis mussel | |
"Exogyra costata" = Exogyra (Exogyra) costata, Gryphaeostrea vomer
Gryphaeostrea vomer Morton 1828 oyster | |
"Ostrea tecticosta" = Cubitostrea tecticosta
"Ostrea tecticosta" = Cubitostrea tecticosta Gabb 1860 oyster | |
| |
Cephalopoda | |
| |
Echinoidea | |
Cidaris sp. Leske 1778 pencil urchin |