Also known as Locality ADa-1 of Toulmin, 1977
Where: Dale County, Alabama (31.5° N, 85.6° W: paleocoordinates 33.2° N, 71.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Bashi Member (Hatchetigbee Bluff Formation), Ypresian (56.0 - 47.8 Ma)
• rep 1 is 1m above Rep 2
•Rep 3 is 1 m laterally from rep 1
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; unlithified, gray, muddy sandstone
Size class: mesofossils
Collection methods: bulk, sieve
• Gastropod shells were only counted if they contained the apex of the shell; bivalve shells were only counted if they contained the umbo.
Primary reference: J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 90148: authorized by Jocelyn Sessa, entered by Laurie Eccles on 08.07.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Turritella gilberti turret shell | |
Scaphopoda | |
Dentalium microstria Heilprin 1880 tusk shell | |
Bivalvia | |
Vokesula aldrichi Meyer 1885 clam | |
Pitar nuttalliopsis venus clam | |
"cf. Acanthocardia hatchetigbeensis" = Schedocardia hatchetigbeensis
"cf. Acanthocardia hatchetigbeensis" = Schedocardia hatchetigbeensis Aldrich 1886 cockle | |
Tellina subtriangularis tellin clam | |
| |
Venericardia indet. Lamarck 1801 clam | |
Calorhadia aldrichiana, "Calorhadia pharcida" = Calorhadia (Calorhadia) pharcida
Calorhadia aldrichiana pointed nut clam
"Calorhadia pharcida" = Calorhadia (Calorhadia) pharcida Dall 1898 pointed nut clam |