| details |
Allegheny |
|
Ohio |
Gray,L.R. Palynology of four Allegheny Coals, northern Appalachian Coal Field. |
1967 |
| details |
Early Keuper |
Early Rhaetian |
Poland |
Orlowska-Zwolinska,T. Microfloristic criteria for age determination of the beds occurring at the Triassic-Jurassic boundary in the Extra-Carpthian areas of Poland. |
1967 |
| details |
Desmoinesian |
|
Iowa |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |
| details |
Westphalian C |
Westphalian D |
United Kingdom |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |
| details |
Triassic |
|
Poland |
Orlowska-Zwolinska,T. et al. Flora of the Triassic microflora |
1970 |
| original |
Stephanian B |
Stephanian C |
USA |
Clendening,J.A. Sporological evidence on the geological age of the Dunkard strata in the Appalachian Basin. |
1970 |
| details |
Pennsylvanian |
|
Kentucky |
Kosanke,R.M. Palynological studies of the Coals of the Princess Reserve District in northeastern Kentucky |
1973 |
| details |
Permian |
|
Rhodesia |
Falcon,R.M.S. Application of palynology in Sub-Dividing the Coal-bearing Formations of the Karoo sequence in Southern Africa |
1975 |