| details |
Middle Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynological studies of Middle Pennsylvanian Coal Beds of the proposed Pennsylvania system stratotype in West Virginia |
1988 |
| details |
Late Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynological analyses of Upper Pennsylvanian Coal Beds and adjacent strata from the proposed Pennsylvanian system stratotype in West Virginia |
1988 |
| details |
Late Mississippian |
Early Pennsylvanian |
West Virginia |
Kosanke,R.M. Palynological studies of Lower Pennsylvanian Coal Beds and adjacent strata of the proposed Pennsylvanian System stratotype in Virginia and West Virginia. |
1988 |
| details |
Permian |
Triassic |
Alaska |
Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska |
1981 |