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Gateway to the Paleobiology Database
MGS #37 (Oligocene of the United States)

Where: Wayne County 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: Red Bluff Formation, Rupelian (33.9 - 28.4 Ma)

• Type Section of Red Bluff

• formation-level stratigraphic resolution

Environment/lithology: offshore; unlithified, gray, silty claystone and ironstone

• fossiliferous, dark gray, silty clay with zones of ironstone concretions in lower part

Size class: mesofossils

Preservation: original aragonite, original calcite

Collection methods: surface (in situ),

• bivalves only**abundances are given as counts ONLY for those species with fewer than 100 specimens - for 100 or more, he just gives "A" for "abundant". In the case where a collection includes an "A", we enter abundance classes for species instead of counts as follows: Fewer than 10 specimens = R (rare)10 to 99 specimens = C (common)Greater than 99 specimens(Dockery's "A") = A (abundant)In this reference, "specimens" equals "valves"

•Categories are listed in the comments field, absolute abundances are given in the abundance field.

•Since taxa with greater than 99 specimens were not counted with absolute abundances, these were reported with category "A" for abundant.

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 5501: authorized by Linda Ivany, entered by Sarah DeLong on 07.10.1999, edited by Laurie Eccles

Creative Commons license: CC BY (attribution)