| details |
Asselian |
|
Switzerland |
Hochuli,P.A. Palynostratigraphic classification and correlation of Permo-Carboniferous of northern Switzerland |
1985 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Allegheny |
|
Pennsylvania |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Allegheny |
|
Pennsylvania |
Frederiksen,N.O. Sporomorphs of the Brookville Seam near Brookville, Pennsylvania. |
1961 |
| details |
|
|
India(Andhra Pradesh) |
Mehrotra,N.C. et al. Krishna-Godavari Basin. (In: Palynology in Hydrocarbon Exploration:The Indian Scenario. Part 1: Category I : Basins) |
2002 |