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Gateway to the Paleobiology Database
MGS #115 (Oligocene of the United States)

Where: Warren County, Mississippi (32.3° N, 90.9° W: paleocoordinates 32.7° N, 84.3° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Byram Formation, Rupelian (33.9 - 28.4 Ma)

• The Byram is the middle formation in a regressive sequence.

• formation-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; unlithified, argillaceous sandstone

• fossiliferous, clayey sands

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: biostratigraphic analysis

PaleoDB collection 7111: authorized by Linda Ivany, entered by Elizabeth Kowalski on 26.04.2000

Creative Commons license: CC BY (attribution)