Where: Warren County, Mississippi (32.5° N, 90.8° W: paleocoordinates 32.9° N, 84.3° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Byram Formation, Rupelian (33.9 - 28.1 Ma)
• The Byram Formation is fossiliferous in most places and clayey in other areas. 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 5999: authorized by Linda Ivany, entered by Sarah DeLong on 13.01.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
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•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.
unclassified | |
Scaphopoda | |
Dentalium strenuum tusk shell
Dentalium mississippiense Conrad 1848 tusk shell | |
Gastropoda | |
Crassispira abundans Conrad 1840 snail | |
Aclis matsoni n. sp.
Aclis matsoni n. sp. aclis | |
Triphora bilineata snail | |
Ficus mississippiensis Conrad 1848 fig shell | |
Cymatium vicksburgense n. sp.
Cymatium vicksburgense n. sp. triton shell | |
Semicassis caelatura snail | |
Lyria mississippiensis Conrad 1843 volute | |
Cymia subalveata murex snail
Siphonochelus curvirostratus Conrad 1848 murex snail | |
Oliva affluens olive snail | |
"Oliva mississippiensis" = Agaronia mississippiensis
"Oliva mississippiensis" = Agaronia mississippiensis Conrad 1848 snail | |
Levifusus spiniger snail | |
"Tritiaria mississippiensis" = Nassarius (Tritiaria)
"Tritiaria mississippiensis" = Nassarius (Tritiaria) snail | |
Latirus protractus snail | |
Bathytoma congesta snail | |
Pleurofusia servata, Pleurofusia longirostropis, "Coronia tenella" = Gemmula (Coronia), Pleuroliria cochlearis, Scobinella pluriplicata, Scobinella caelata
Pleurofusia servata turrid
Pleurofusia longirostropis turrid
"Coronia tenella" = Gemmula (Coronia) turrid
Pleuroliria cochlearis turrid
Scobinella caelata Conrad 1848 turrid | |
Terebra divisura auger snail
Terebra tantula Conrad 1848 auger snail | |
"Conus alveatus" = Conus sauridens, Conorbis porcellanus
"Conus alveatus" = Conus sauridens Conrad 1833 cone shell
Conorbis porcellanus cone shell | |
Turbinella wilsoni Conrad 1848 snail | |
Acteocina crassiplica barrel-bubble | |
Bivalvia | |
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"Barbatia mississippiensis" = Barbatia (Cucullaearca) mississippiensis, "Scapharca lesueuri" = Cunearca lesueuri
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