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 Formation is fossiliferous in most places, and clayey in others. Macrofauna dominated by bivalves.
• formation-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified, shelly/skeletal, sandy, calcareous claystone and 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: taxonomic analysis
PaleoDB collection 6006: authorized by Linda Ivany, entered by Sarah DeLong on 13.01.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
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Nuculana akidota n. sp.
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Lucina triloba n. sp., Lucina posteocurta n. sp.
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"Nemocardium diversum" = Nemocardium (Nemocardium) diversum
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"Crassatella mississippiensis" = Crassatella (Crassatella) mississippiensis
"Crassatella mississippiensis" = Crassatella (Crassatella) mississippiensis Conrad 1848 clam 2 valves
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Astarte menthifontis n. sp.
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Crenella fenestra n. sp.
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"Scapharca lesueuri" = Cunearca lesueuri, "Barbatia mississippiensis" = Barbatia (Cucullaearca) mississippiensis
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Scaphopoda | |
Dentalium strenuum tusk shell
Dentalium mississippiense Conrad 1848 tusk shell | |
Gastropoda | |
Crassispira abundans Conrad 1840 snail | |
Phalium mississippiensis Conrad 1848 snail
Semicassis caelatura snail
"Galeodaria tricarinata" = Galeodea snail | |
Distorsio crassidens snail | |
"Conus alveatus" = Conus sauridens, Conorbis porcellanus
"Conus alveatus" = Conus sauridens Conrad 1833 cone shell
Conorbis porcellanus cone shell | |
Bathytoma congesta snail | |
Terebra divisura auger snail
Terebra tantula Conrad 1848 auger snail | |
"Tropiscurcula caseyi" = Tropisurcula
"Tropiscurcula caseyi" = Tropisurcula snail | |
Pleuroliria cochlearis turrid
Scobinella caelata Conrad 1848 turrid | |
Siphonochelus curvirostratus Conrad 1848 murex snail | |
Oliva affluens olive snail | |
"Oliva mississippiensis" = Agaronia mississippiensis
"Oliva mississippiensis" = Agaronia mississippiensis Conrad 1848 snail | |
Turbinella wilsoni Conrad 1848 snail | |
Latirus mississippiensis snail
Latirus protractus snail | |
"Tritiaria mississippiensis" = Nassarius (Tritiaria)
"Tritiaria mississippiensis" = Nassarius (Tritiaria) snail | |
Pseudofulgur vicksburgensis true whelk |