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 7111: authorized by Linda Ivany, entered by Elizabeth Kowalski on 26.04.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Conus alveatus" = Conus sauridens, Conorbis porcellanus
"Conus alveatus" = Conus sauridens Conrad 1833 cone shell
Conorbis porcellanus cone shell | |
Bathytoma congesta snail | |
"Coronia tenella" = Gemmula (Coronia), Scobinella pluriplicata, Scobinella caelata, Pleuroliria cochlearis, Pleurofusia longirostropis, "Cochlespira cristata" = Pleurotoma cristata
"Coronia tenella" = Gemmula (Coronia) turrid
Scobinella caelata Conrad 1848 turrid
Pleuroliria cochlearis turrid
Pleurofusia longirostropis turrid
"Cochlespira cristata" = Pleurotoma cristata Conrad 1848 turrid | |
Siphonochelus curvirostratus Conrad 1848 murex snail | |
Caricella demissa Conrad 1848 volute
Lyria mississippiensis Conrad 1843 volute | |
"Oliva mississippiensis" = Agaronia mississippiensis
"Oliva mississippiensis" = Agaronia mississippiensis Conrad 1848 snail | |
Oliva affluens olive snail | |
Turbinella wilsoni Conrad 1848 snail | |
Terebra divisura auger snail
Terebra tantula Conrad 1848 auger snail | |
Latirus protractus snail | |
Levifusus spiniger snail | |
Pseudofulgur vicksburgensis true whelk | |
Distorsio crassidens snail | |
Sconsia lintea, "Galeodaria tricarinata" = Galeodea
Sconsia lintea Conrad 1848 snail
"Galeodaria tricarinata" = Galeodea snail | |
Aporrhais lirata snail | |
Crassispira lyopleura n. sp.
Crassispira lyopleura n. sp. snail | |
Scaphopoda | |
Dentalium mississippiense Conrad 1848 tusk shell
Dentalium strenuum tusk shell | |
Bivalvia | |
"Crassatella mississippiensis" = Crassatella (Crassatella) mississippiensis
"Crassatella mississippiensis" = Crassatella (Crassatella) mississippiensis Conrad 1848 clam | |
Dinocardium vicksburgensis, "Nemocardium diversum" = Nemocardium (Nemocardium) diversum
Dinocardium vicksburgensis cockle
"Nemocardium diversum" = Nemocardium (Nemocardium) diversum Conrad 1848 cockle | |
Callista sobrina venus clam | |
Panopea oblongata Conrad 1848 clam | |
Glycymeris arctata Conrad 1848 clam | |
"Scapharca lesueuri" = Cunearca lesueuri, Barbatia (Cucullaearca) lima, "Barbatia mississippiensis" = Barbatia (Cucullaearca) mississippiensis
"Scapharca lesueuri" = Cunearca lesueuri Dall 1848 ark
"Barbatia mississippiensis" = Barbatia (Cucullaearca) mississippiensis Conrad 1848 clam | |
Ostrea paroxis Lesueur 1829 oyster
Lopha vicksburgensis Conrad 1848 oyster | |
Pecten byramensis scallop |