MGS Loc. 117b - Waynesboro [Mint Spring Fm] (Oligocene of the United States)

Where: Wayne County, Mississippi (31.7° N, 88.6° W: paleocoordinates 32.0° N, 82.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mint Spring Formation, Rupelian (33.9 - 28.1 Ma)

• The Mint Spring Formation consists of fossiliferous sands that lie disconformably above the estuarine clays and sands of the Forest Hill Formation. The sands of the Mint Spring Formation are moderately clean and often show cross-bedding. These sands indicate a near-shore shelf environment and have a macrofauna dominated by bivalves.

• formation-level stratigraphic resolution

Environment/lithology: offshore; lithified, conglomeratic, calcareous conglomerate and wackestone

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/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5950: authorized by Linda Ivany, entered by Sarah DeLong on 04.01.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• List uses catagories. For example: R = rare, 1 - 9 valves collected. C = common, 10-99 valves collected. A = abundant, 100+ valves collected.

•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.

 Carditida - Crassatellidae
Crassatella lirasculpta n. sp. Dockery 1982 clam
R category
 Pholadida - Pholadidae
Jouannetia triquetra clam
100+ valves collected
 Arcida - Glycymerididae
Glycymeris suwannensis Mansfield 1937 clam
R category
 Pectinida - Pectinoidae
"Spondylus filiaris" = Spondylus (Spondylus) filiaris
"Spondylus filiaris" = Spondylus (Spondylus) filiaris Dall 1916 scallop
R category