Where: Coffee County, Alabama (31.3° N, 86.0° W: paleocoordinates 33.1° N, 71.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Upper Hatchetigbee Bluff Member (Hatchetigbee Bluff Formation), Ypresian (55.8 - 48.6 Ma)

• Rep 1 is on the north bank of the stream, & Reps 2 & 3 are from the south bank Rep 3 is 6m from Rep 2

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; unlithified, gray, silty, sandy claystone

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 90145: authorized by Jocelyn Sessa, entered by Laurie Eccles on 08.07.2009