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

Where: Lowndes County, Alabama (32.1° N, 86.8° W)

• Paleocoordinates: 37.0° N, 56.1° W (Wright 2013)

• 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: CC0 (CC0)

Taxonomic list

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Malacostraca
 Decapoda - Callianassidae
Callianassa sp.
Callianassa sp. Leach 1814 decapod
 Decapoda - Xanthidae
Xanthidae sp.
Xanthidae sp. MacLeay 1838 stone crab
 Decapoda - Potamidae
Potamidae indet.
Potamidae indet. Ortmann 1896 crab
Sedentaria
 Sabellida - Serpulidae
Serpula sp.
Serpula sp. Linnaeus 1758
Gastropoda
 Opisthobranchiata - Cylichnidae
? Cylichna sp.
? Cylichna sp. Lovén 1846 snail
 Sorbeoconcha - Naticidae
Natica "sp. B", Natica "sp. A"
Natica "sp. B" Scopoli 1777 moon snail
Natica "sp. A" Scopoli 1777 moon snail
 Neogastropoda - Cancellariidae
? Cancellaria sp.
? Cancellaria sp. Lamarck 1799 snail
 Neogastropoda - Muricidae
? Trophon sp.
? Trophon sp. Montfort 1810 murex snail
 Neogastropoda - Fasciolariidae
? Latirus sp.
? Latirus sp. Monfort 1810 snail
 Sorbeoconcha - Cerithiopsidae
? Cerithiopsis sp.
? Cerithiopsis sp. Hanley 1849 snail
 Sorbeoconcha - Rissoidae
Rissoina ? alabamenesis
 Sorbeoconcha - Vitrinellidae
Vitrinellidae indet.
Vitrinellidae indet. Bush 1897 snail
 Epitonioidea - Epitoniidae
Epitoniidae indet.
Epitoniidae indet. Berry 1910 wentletrap
 Cerithioidea - Turritellidae
Turritella "sp. C", Turritella "sp. B", Turritella "sp. A", ? Turritella "sp. D"
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
 Vanikoroidea - Eulimidae
Melanella sp.
Melanella sp. Bowdich 1822 snail
 Heterostropha - Acteonidae
Acteonidae indet.
Acteonidae indet. d'Orbigny 1835 snail
 Heterostropha - Architectonicidae
Pseudomalaxis sp.
Pseudomalaxis sp. Fischer 1850 snail
Bivalvia
 Nuculanida - Nuculanidae
Nuculana "sp. B", Nuculana "sp. A"
Nuculana "sp. B" Link 1807 pointed nut clam
Nuculana "sp. A" Link 1807 pointed nut clam
 Ostreida - Ostreidae
Ostrea crenulimarginata, Ostrea pulaskensis
Ostrea crenulimarginata Gabb 1860 oyster
Ostrea pulaskensis Harris 1892 oyster
 Ostreida - Gryphaeidae
Gryphaeostrea vomer
Gryphaeostrea vomer Morton 1828 oyster
 Pectinida - Plicatulidae
Plicatula sp.
Plicatula sp. Lamarck 1801 scallop
 Arcida - Cucullaeidae
Cucullaea sp.
Cucullaea sp. Lamarck 1801 clam
 Mytilida - Mytilidae
Modiolus sp.
Modiolus sp. Lamarck 1801 mussel
 Cardiida - Veneridae
? Pitar ripleyanus, ? Dosinia sp.
? Dosinia sp. Scopoli 1777 venus clam
 Carditida - Crassatellidae
Crassatella sp.
Crassatella sp. Lamarck 1799 clam
 Carditida - Carditidae
Venericardia sp.
Venericardia sp. Lamarck 1801 clam
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Stenolaemata
 Tubuliporata - Entalophoridae
Entalophora sp.
Entalophora sp. Lamoureux 1821
 Tubuliporata - Plagioeciidae
? Plagioecia sp.
? Plagioecia sp. Canu 1918
 Tubuliporata - Tubuliporidae
Pleuronea "sp. B", Pleuronea "sp. A", Pleuronea fibrosa, Pleuronea alveolata
Pleuronea "sp. B" Canu and Bassler 1920
Pleuronea "sp. A" Canu and Bassler 1920
 Tubuliporata - Cerioporidae
Ceriopora vesiculosa
Gymnolaemata
 Cheilostomata - Bitectiporidae
Hippoporina midwayaica
 Cheilostomata - Quadricellariidae
Nellia midwayanica
 Cheilostomata - Exochellidae
Bathosella ? undata
 Cheilostomata - Onychocellidae
Euritina tecta
 Cheilostomata - Cribrilinidae
? Membraniporella sp.
 Cheilostomata - Calloporidae
Stamenocella midwayanica
 Cheilostomata - Antroporidae
? Antropora sp., ? Antropora wadei, ? Antropora damicornis
? Antropora sp. Norman 1903
Echinoidea
 Cidaroida - Cidaridae
Cidaris sp.
Cidaris sp. Leske 1778 pencil urchin
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
 Scleractinia - Caryophylliidae
? Trochocyathus sp.
? Trochocyathus sp. Milne-Edwards and Haime 1848 stony coral
 Scleractinia - Dendrophylliidae
? Balanophyllia sp.
? Balanophyllia sp. Wood 1844 stony coral