| Ames Limestone | |
| Type: | Member |
| Age: | Carboniferous ~ |
| Prilithology: | Limestone |
| Namedfor: | Amesville, Ohio |
| Region: | ,, |
| Unitof: | Conewango Group |
| Subunits: | None |
| Thickness: | 1 - 4' |
The Ames Limestone is a geologic formation in Ohio, Kentucky, Pennsylvania and West Virginia. It is part of the Conemaugh Group. Formerly know at "Crinoidal Limestone" and "Green Fossiliferous Lime" it was renamed to Ames.[1]
Fossils of Echinoderm, Brachiopod, and Gastropoda are commonly found in the Ames.[2]
The Ames is a thin Marker bed of Limestone and/or Fossiliferous limestone. It marks a transition from a predominantly marine environment to predominantly alluvial environment. The Ames serves as a marker for the boundary for the Casselman Formation and the Glenshaw Formation.