Where: Rankin County, Mississippi (32.2° N, 90.2° W: paleocoordinates 32.5° N, 83.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Marianna Limestone Formation, Rupelian (33.9 - 28.4 Ma)
• Marianna Limeatone similar to Mint Spring Formation. Highly carbonaceous, here aragonitic shells generally have been leached leaving only the molds.
• formation-level stratigraphic resolution
Environment/lithology: offshore; lithified, conglomeratic, calcareous conglomerate and carbonate
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 5953: authorized by Linda Ivany, entered by Sarah DeLong on 04.01.2000
Creative Commons license: CC BY (attribution)