ACl-12 (Eocene of the United States)

Where: Clarke County, Alabama (31.7° N, 87.8° W: paleocoordinates 32.3° N, 78.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Moodys Branch Formation, Bartonian (41.3 - 38.0 Ma)

• supposedly "Auversian"; stage assignment based on Baum et al. 1994. Local section ACl-12.

•Moodys Branch=Bartonian (JAS 14 October 2010)

• bed-level stratigraphic resolution

Environment/lithology: marine; gray, green sandstone

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 3506: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
originally entered as "Ostrea spp."
unclassified
  -
Vertebrata indet. Lamarck 1801
shark teeth
Echinoidea
 Clypeasteroida - Protoscutellidae
Periarchus lyelli Conrad 1834 sand dollar
 Spatangoida - Schizasteridae
"Schizaster armiger" = Paraster armiger
"Schizaster armiger" = Paraster armiger Clark and Twitchell 1915 heart urchin
originally entered as "Scizaster armiger"