- Author:
- Cross,A.T.
- Year:
- 1952
- Title:
- The geology of the Pittsburgh Coal: Stratigraphy, petrology, origin and composition, and geologic interpretation of mining problems.
- Reference:
- Cross,A.T. (1952) The geology of the Pittsburgh Coal: Stratigraphy, petrology, origin and composition, and geologic interpretation of mining problems. Conference on the Origin and Constitution of Coal,Proceedings,2nd.Nova Scotia Research Foundation,Halifax,1952 P. 32- 99
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Triletes | Triletes silvanus | West Virginia | Late Pennsylvanian | |
| Triletes | Triletes silvanus | Ohio | Late Pennsylvanian | |
| Triletes | Triletes triangulatus | Pennsylvania | Late Pennsylvanian | |
| Triletes | Triletes triangulatus | West Virginia | Late Pennsylvanian | |
| Triletes | Triletes triangulatus | Ohio | Late Pennsylvanian | |
| Triquitrites | Triquitrites sp | Pennsylvania | Late Pennsylvanian | |
| Triquitrites | Triquitrites sp | West Virginia | Late Pennsylvanian | |
| Triquitrites | Triquitrites sp | Ohio | Late Pennsylvanian | |
| Triquitrites | Triquitrites spinosus | Pennsylvania | Late Pennsylvanian | |
| Triquitrites | Triquitrites spinosus | West Virginia | Late Pennsylvanian | |
| Triquitrites | Triquitrites spinosus | Ohio | Late Pennsylvanian |