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MGS #75a (Oligocene of the United States)

Where: Wayne County, Mississippi (31.0° N, 88.7° W: paleocoordinates 31.3° N, 82.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Forest Hill Formation, Rupelian (33.9 - 28.4 Ma)

• The upper part of the Forest Hill Formation consists of estuarine clays and sands which locally contain a marine fauna. In Wayne county at localities 75a and 88a, numerous, wel preserved fossils were collected from sand lenses in this interval. Also present in this interval are leaf fossils which occur along beddind planes in the clay. These estuarine and marine sediments are the initial stage in the marine transgression of the Mint Spring seaway.

• formation-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, gray, silty, sandy claystone and sandstone

Size class: mesofossils

Preservation: original aragonite, original calcite

Collection methods: bulk, mechanical,

• bivalves only

Primary reference: D. T. Dockery. 1982. Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi. Mississippi Department of Natural Resources Bureau of Geology 123:1-261 [L. Ivany/S. DeLong] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5791: authorized by Linda Ivany, entered by Sarah DeLong on 02.12.1999

Creative Commons license: CC BY (attribution)