Where: Henry County, Alabama (30.7° N, 84.9° W: paleocoordinates 33.2° N, 65.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Clayton Formation, Danian (66.0 - 61.6 Ma)
• Middle part of the Clayton, overlain by upper Clayton "earthy limestone". Beds 10 and 11 of Toulmin & LaMoreaux, 1963. Middle part of the Clayton Formation belongs to the upper part of NP2, and the mid-upper part of P1a (Schulte & Speijer 2009).
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, gray, sandy packstone
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 2814: authorized by Mark Patzkowsky, entered by Karen Layou on 21.07.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
"Rhopostoma cruciferum" = Plagiochasma cruciferum
"Rhopostoma cruciferum" = Plagiochasma cruciferum Morton 1830 sea urchin | |
Gastropoda | |
"Turritella alabamiensis" = Mesalia alabamiensis
"Turritella alabamiensis" = Mesalia alabamiensis De Gregorio 1890 turret shell | |
Cephalopoda | |
Hercoglossa ulrichi White 1882 | |
Bivalvia | |
"Venericardia smithii" = Venericardia (Venericor) smithii, Venericardia mediaplata
"Venericardia smithii" = Venericardia (Venericor) smithii Aldrich 1894 clam
Venericardia mediaplata Gardner and Bowles 1939 clam | |
Ostrea crenulimarginata Gabb 1860 oyster |