| details |
Permian |
|
Oklahoma |
Bond,T.A. Permian palynological assemblage from the Wellington Formation, Kay County, Oklahoma. |
1968 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Allegheny |
|
Pennsylvania |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of the Middle Kittanning Coal in Ohio |
1966 |
| details |
Middle Pennsylvanian |
|
Kentucky |
Gray,L.R. et al. Palynology of the Schultztown Coal in Western Kentucky. |
1967 |
| details |
Westphalian C |
|
Canada(Newfoundland) |
Hyde,R.S. et al. Petrology, palynology and depositional environments of Coals of the Upper Carboniferous Barachois Group, (Westphalian A and C), SouthWestern Newfoundland. |
1991 |