ACl-10 (Shubuta) (Eocene of the United States)

Where: Clarke County, Alabama (31.7° N, 87.7° W: paleocoordinates 32.1° N, 79.9° 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-10

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified, glauconitic, yellow, argillaceous carbonate

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 3549: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Flabellidae
Flabellum sp. Lesson 1831 stony coral
Echinoidea
 Cidaroida - Cidaridae
Cidaris pratti Clark and Twitchell 1915 pencil urchin
 Spatangoida - Brissidae
Macropneustes mortoni Conrad 1850 heart urchin
 Spatangoida - Schizasteridae
"Schizaster armiger" = Paraster armiger
"Schizaster armiger" = Paraster armiger Clark and Twitchell 1915 heart urchin
unclassified
  -
Vertebrata indet. Lamarck 1801
shark teeth
Bivalvia
 Ostreida - Ostreidae
"Alectryonia vicksburgensis" = Lopha (Lopha) vicksburgensis
"Alectryonia vicksburgensis" = Lopha (Lopha) vicksburgensis Conrad 1848 oyster
 Ostreida - Gryphaeidae
Gryphaeostrea plicatella oyster
Gryphaeostrea vomer plicatella
 Pectinida - Pectinoidae
Chlamys sp. Röding 1798 scallop
originally entered as "Chlamys spp."
Gastropoda
 Epitonioidea - Epitoniidae
 Neogastropoda - Conidae
"Conus tortilis" = Conus sauridens
"Conus tortilis" = Conus sauridens Conrad 1833 cone shell
Rhynchonellata
 Terebratulida - Cancellothyrididae