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 - 28.1 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
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: biostratigraphic analysis
PaleoDB collection 7112: authorized by Linda Ivany, entered by Elizabeth Kowalski on 26.04.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Conus protractus, "Conus alveatus" = Conus sauridens
Conus protractus cone shell
"Conus alveatus" = Conus sauridens Conrad 1833 cone shell | |
Bathytoma congesta snail | |
"Coronia tenella" = Gemmula (Coronia), Scobinella pluriplicata, Scobinella caelata, Pleuroliria cochlearis
"Coronia tenella" = Gemmula (Coronia) turrid
Scobinella caelata Conrad 1848 turrid
Pleuroliria cochlearis turrid | |
Siphonochelus curvirostratus Conrad 1848 murex snail | |
"Oliva mississippiensis" = Agaronia mississippiensis
"Oliva mississippiensis" = Agaronia mississippiensis Conrad 1848 snail | |
Oliva affluens olive snail | |
Vexillum cellulifera ribbed mitre | |
Terebra divisura auger snail
Terebra tantula Conrad 1848 auger snail | |
"Tritiaria mississippiensis" = Nassarius (Tritiaria)
"Tritiaria mississippiensis" = Nassarius (Tritiaria) snail | |
Latirus protractus snail | |
Volema hopkinsi n. sp.
Volema hopkinsi n. sp. snail | |
Distorsio crassidens snail | |
Semicassis caelatura snail | |
Scaphopoda | |
Dentalium mississippiense Conrad 1848 tusk shell
Dentalium strenuum tusk shell | |
Bivalvia | |
Glycymeris arctata Conrad 1848 clam | |
"Scapharca lesueuri" = Cunearca lesueuri, Barbatia (Cucullaearca) lima
"Scapharca lesueuri" = Cunearca lesueuri Dall 1848 ark | |
Pecten byramensis scallop |