Above C.P. & St. Louis RR tracks, ΒΌ mile east of Piasa Creek (Carboniferous of the United States)
Also known as 2 miles north of Alton
Where: Madison County, Illinois (38.9° N, 90.2° W: paleocoordinates 14.9° S, 35.1° W)
• outcrop-level geographic resolution
When: Taphrognathus varians conodont zone, Salem Formation, Meramecian (343.0 - 335.5 Ma)
• bed-level stratigraphic resolution
Environment/lithology: gray limestone
• Gray or buff limestone, granular in texture, heavy bedded with scaly weathered surface. Fossils abundant. Weller 1908.
Size classes: macrofossils, mesofossils
Primary reference: S. Weller. 1908. The Salem Limestone. Illinois Geological Survey Bulletin 8:81-102 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 129931: authorized by Pete Wagner, entered by Pete Wagner on 03.07.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
• Only gastropods and rostroconchs entered so far; updated taxonomic data needed before other groups can be entered.
Show authors, comments, and common names
| Gastropoda | |
"Pleurotomaria piasaensis n. sp." = Rhineoderma piasaensis
"Pleurotomaria piasaensis n. sp." = Rhineoderma piasaensis Hall 1856 snail | |