ACl-11 (Shubuta) (Eocene of the United States)

Where: Clarke County, Alabama (31.5° N, 87.8° W: paleocoordinates 31.9° N, 80.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Shubuta Member (Yazoo Clay Formation), Priabonian (38.0 - 33.9 Ma)

• supposedly "Ludian"; stage assignment based on Baum et al. 1994; Section ACl-11

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified, glauconitic, yellow, calcareous shale

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 3550: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Vertebrata indet. Lamarck 1801
shark teeth
Echinoidea
 Spatangoida - Brissidae
Macropneustes mortoni Conrad 1850 heart urchin
Bivalvia
 Ostreida - Gryphaeidae
Gryphaeostrea plicatella oyster
Gryphaeostrea vomer plicatella
 Ostreida - Ostreidae
"Alectryonia vicksburgensis" = Lopha (Lopha) vicksburgensis, Ostrea falco
"Alectryonia vicksburgensis" = Lopha (Lopha) vicksburgensis Conrad 1848 oyster
Ostrea falco oyster
 Pectinida - Pectinoidae
Chlamys sp. Röding 1798 scallop
originally entered as "Chlamys spp."
 Nuculanida - Nuculanidae
Nuculana multilineata pointed nut clam