ACl-7 (Moodys Branch) (Eocene of the United States)

Where: Clarke County, Alabama (31.5° N, 87.8° W: paleocoordinates 32.1° N, 79.0° W)

• coordinate based on political unit

• 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-7.

•Moodys Branch=Bartonian (JAS 14 October 2010)

• group of beds-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 3505: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Gryphaeidae
Gigantostrea trigonalis Conrad 1854 oyster
 Pectinida - Pectinoidae
Eburneopecten scintillatus Conrad 1854 scallop
Chlamys deshayesii Lea 1833 scallop
Scaphopoda
 Dentaliida - Fustiariidae
Fustiaria danai tusk shell
Gastropoda
 Neogastropoda - Fasciolariidae
unclassified
  -
Vertebrata indet. Lamarck 1801
fish vertebra
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