Where: Clarke County, Mississippi (32.2° N, 88.8° W: paleocoordinates 33.4° N, 77.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Winona Formation (Claiborne Group), Lutetian (47.8 - 41.3 Ma)
• member-level stratigraphic resolution
Environment/lithology: marine; sandstone
Size class: mesofossils
Primary reference: D. T. Dockery. 1980. Invertebrate Macropaleontolgy of the Clarke County Mississippi Area. Bulletin - Mississippi Geological, Economic and Topographic Survey 122 [M. Kosnik/M. Kosnik/L. Eccles]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 99668: authorized by Jocelyn Sessa, entered by Laurie Eccles on 18.11.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Nemocardium sp. Meek 1876 cockle | |
Crassatella sp. Lamarck 1799 clam | |
Chlamys clarkeana Aldrich 1895 scallop | |
Cubitostrea lisbonensis Harris 1919 oyster
Cubitostrea perplicata Dall 1898 oyster | |
Gastropoda | |
Lacinia alveata Conrad 1833 true whelk | |
Athleta "sp. A" Conrad 1853 volute | |
Calyptraphorus sp. Conrad 1857 snail | |
Malacostraca | |
Callianassa sp. Leach 1814 decapod | |
Echinoidea | |
"Maretia arguta" = Hemipatagus argutus
"Maretia arguta" = Hemipatagus argutus Clark and Twitchell 1915 heart urchin | |
Protoscutella mississippensis sand dollar | |
Ophiomorpha sp. Lundgren 1891 |