Also known as W.M. 18-29. Stuart Weller 1918
Where: Johnson County, Illinois (37.4° N, 89.0° W: paleocoordinates 13.1° S, 31.3° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Glen Dean Formation (Okaw Group), Chesterian (339.4 - 318.1 Ma)
• Uppermost Hombergian substage
• formation-level stratigraphic resolution
Environment/lithology: ooidal limestone
Size class: macrofossils
Reposited in the FMNH
Primary reference: M.L. Thein and M.H. Nitecki. 1974. Chesterian (Upper Mississippian) Gastropoda of the Illinois basin. Fieldiana: Geology, New Series 34:1-238 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 59824: authorized by Pete Wagner, entered by Pete Wagner on 15.04.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Tergomya | |
Lepetopsis chesterensis Worthen 1884 | |
Gastropoda | |
"Borestus chesterensis" = Salterospira chesterensis
"Borestus chesterensis" = Salterospira chesterensis Meek and Worthen 1860 snail | |
Porcellia chesterensis Thein and Nitecki 1974 snail | |
Euconospira sturgeoni Thein and Nitecki 1974 snail | |
"Platyceras (Orthonychia) chesterense" = Orthonychia chesterense
"Platyceras (Orthonychia) chesterense" = Orthonychia chesterense Meek and Worthen 1867 snail var. 1 and var. 2
| |
"Knightites (Cymatospira) welleri" = Cymatospira welleri, Patellilabia chesterensis, Bellerophon (Bellerophon) chesterensis
"Knightites (Cymatospira) welleri" = Cymatospira welleri Thein and Nitecki 1974 snail
Patellilabia chesterensis Thein and Nitecki 1974 snail
Bellerophon (Bellerophon) chesterensis Weller 1920 snail | |
Platyceras (Platyceras) subrotundum Snider 1915 snail | |
Platyzona "sp. 2" Knight 1945 snail | |
Naticopsis (Naticopsis) sp. M'Coy 1844 snail |