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Gateway to the Paleobiology Database
MGS #35b (Oligocene of the United States)

Where: Wayne County, Mississippi (31.7° N, 88.7° W: paleocoordinates 31.9° N, 82.2° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Red Bluff Formation, Rupelian (33.9 - 28.4 Ma)

• The basal member of the VicksburGroup, the Red Bluff formation occurs just above the Yazoo Clay.

• formation-level stratigraphic resolution

Environment/lithology: prodelta; unlithified, gray, silty claystone and siltstone

• fossiliferous, dark gray, silty clay with zones of iron concretions in the lower part. also common, sandy lenses.

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 7113: authorized by Linda Ivany, entered by Elizabeth Kowalski on 26.04.2000

Creative Commons license: CC BY (attribution)