AWi-8 (Porters Creek) (Paleocene of the United States)

Where: Wilcox County, Alabama (32.1° N, 87.3° W: paleocoordinates 35.1° N, 67.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: lower Member (Porters Creek Formation), Danian (66.0 - 61.6 Ma)

• Local section name: AWi-8

•Lower Porters Creek=Danian (JAS 14Oct2010)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; unlithified, gray, calcareous claystone

• The lower 2 m of the PCF are well exposed and include laminated mudstone and claystone with dispersed glauconite and foraminifera and centimeter-diameter, glauconite-filled, horizontal burrows. The lower part of the PCF is overlain by a 2–3 m interval of discontinuous iron oxide concretions. Above the concretion zone, the upper PCF is massive mudstone in medium to thick beds. (Larsen et al. 2015)

Size class: mesofossils

Primary reference: L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2859: authorized by Mark Patzkowsky, entered by Karen Layou on 21.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Flabellidae
Flabellum conoideum
Flabellum conoideum Vaughan 1900 stony coral
 Scleractinia - Oculinidae
? Oculina smithi
? Oculina smithi Vaughan 1900 stony coral
originally entered as "Oculina? smithi"
Malacostraca
 Decapoda - Erymidae
Enoploclytia tumimanus
Enoploclytia tumimanus Rathbun 1935 decapod
originally entered as "Enoploclitia tumimanus"
 Decapoda - Tumidocarcinidae
Xanthilites alabamensis
Xanthilites alabamensis Rathbun 1935 crab
Bivalvia
 Cardiida - Veneridae
? Pitar ripleyanus
? Pitar ripleyanus venus clam
originally entered as "Pitar? ripleyanus"
 Carditida - Crassatellidae
"Crassatella sepulcollis" = Crassatella aquiana
"Crassatella sepulcollis" = Crassatella aquiana Clark 1895 clam
 Carditida - Carditidae
"Venericardia wilcoxensis" = Venericardia (Baluchicardia) wilcoxensis
"Venericardia wilcoxensis" = Venericardia (Baluchicardia) wilcoxensis Dall 1903 clam
 Arcida - Cucullaeidae
Cucullaea macrodonta
 Ostreida - Ostreidae
Ostrea sp.
Ostrea sp. Linnaeus 1758 oyster
originally entered as "Ostrea spp."
 Nuculanida - Nuculanidae
Jupiteria smirna
Jupiteria smirna pointed nut clam
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium nediaviense
Gastropoda
 Sorbeoconcha - Naticidae
Euspira perspecta
 Neogastropoda - Volutidae
"Volutocorbis rugatus" = Athleta (Volutocorbis)
"Volutocorbis rugatus" = Athleta (Volutocorbis) volute
 Neogastropoda - Costellariidae
Orthosurcula adeona
Orthosurcula adeona ribbed mitre
 Neogastropoda - Buccinidae
Pseudoliva sp.
Pseudoliva sp. Swainson 1840 true whelk
 Sorbeoconcha - Rostellariidae
Calyptraphorus sp.
Calyptraphorus sp. Conrad 1857 snail
originally entered as "Calyptraphorus spp."
 Cerithioidea - Turritellidae
"Turritella alabamiensis" = Mesalia alabamiensis, Turritella aldrichi, Turritella sp.
"Turritella alabamiensis" = Mesalia alabamiensis De Gregorio 1890 turret shell
Turritella aldrichi turret shell
Turritella sp. Lamarck 1799 turret shell
originally entered as "Turritella spp."
Cephalopoda
 Nautilida - Hercoglossidae
Hercoglossa ulrichi
Sedentaria
 Sabellida - Serpulidae
Rotularia mcglameryae
unclassified
  -
Vertebrata indet., Vertebrata indet.
Vertebrata indet. Lamarck 1801
otolith
Vertebrata indet. Lamarck 1801
shark tooth