Braggs-Pine Barren-Beds 7-9 (Paleocene of the United States)

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, glauconitic, sandy limestone

• Beds 7-9 are glauconitic lithified limestones mostly recrystallized fossils containing small clay lenses where most of the fossils come from.

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 83297: authorized by Arnold Miller, entered by Jocelyn Sessa on 15.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Callianassidae
Callianassa sp. Leach 1814 decapod
 Decapoda - Potamidae
Potamidae indet. Ortmann 1896 crab
 Decapoda - Xanthidae
Xanthidae sp. MacLeay 1838 stone crab
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Polychaeta
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Bivalvia
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
 Pectinida - Plicatulidae
Plicatula sp. Lamarck 1801 scallop
 Ostreida - Gryphaeidae
Gryphaeostrea vomer Morton 1828 oyster
 Ostreida - Ostreidae
Ostrea pulaskensis Harris 1892 oyster
Ostrea crenulimarginata Gabb 1860 oyster
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel
 Carditida - Crassatellidae
Crassatella sp. Lamarck 1799 clam
 Carditida - Carditidae
Venericardia sp. Lamarck 1801 clam
 Cardiida - Veneridae
? Dosinia sp. Scopoli 1777 venus clam
? Pitar ripleyanus venus clam
 Protobranchia - Nuculanidae
Nuculana "sp. B" Link 1807 pointed nut clam
Nuculana "sp. A" Link 1807 pointed nut clam
Gastropoda
 Ptenoglossa - Fasciolariidae
? Latirus sp. Monfort 1810 snail
 Ptenoglossa - Epitoniidae
Epitoniidae indet. Berry 1910 wentletrap
 Cephalaspidea - Cylichnidae
? Cylichna sp. Lovén 1846 snail
 Triphoroidea - Cerithiopsidae
? Cerithiopsis sp. Hanley 1849 snail
 Cerithiacea - Thiaridae
Turritella "sp. C" Lamarck 1799 turret shell
Turritella "sp. B" Lamarck 1799 turret shell
Turritella "sp. A" Lamarck 1799 turret shell
? Turritella "sp. D" Lamarck 1799 turret shell
 Neogastropoda - Cancellariidae
? Cancellaria sp. Lamarck 1799 snail
 Neogastropoda - Muricidae
? Trophon sp. Montfort 1810 murex snail
 Mesogastropoda - Naticidae
Natica "sp. B" Scopoli 1777 moon snail
Natica "sp. A" Scopoli 1777 moon snail
 Vanikoroidea - Eulimidae
Melanella sp. Bowdich 1822 snail
 Rissooidea - Rissoidae
 Rissooidea - Vitrinellidae
Vitrinellidae indet. Bush 1897 snail
 Heterostropha - Acteonidae
Acteonidae indet. d'Orbigny 1835 snail
 Architectonicoidea - Architectonicidae
Pseudomalaxis sp. Fischer 1850 snail
Gymnolaemata
 Cheilostomata - Quadricellariidae
 Cheilostomata -
 Cheilostomata - Romancheinidae
 Cheilostomata - Cribrilinidae
 Cheilostomata - Bitectiporidae
 Cheilostomata - Calloporidae
 Cheilostomata - Antroporidae
Stenolaemata
 Cyclostomata - Cerioporidae
 Cyclostomata - Plagioeciidae
? Plagioecia sp. Canu 1918
 Cyclostomata - Entalophoridae
Entalophora sp. Lamoureux 1821
 Cyclostomata -
Echinoidea
 Cidaroida - Cidaridae
Cidaris sp. Leske 1778 pencil urchin
Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
 Scleractinia - Dendrophylliidae
? Balanophyllia sp. Wood 1844 stony coral
 Scleractinia - Caryophylliidae
? Trochocyathus sp. Milne-Edwards and Haime 1848 stony coral