original |
Pennsylvanian |
|
Oklahoma |
Clarke,R.T. Palynology of the Secor Coal (Pennsylvanian) of Oklahoma |
1961 |
original |
Chesterian |
Westphalian |
Sinai |
Saad,S.I. Pollen and spores recently discovered in the Coals of the Sinai Region. 2.Um Bogma District. |
1965 |
original |
Middle Albian |
Early Cenomanian |
Colorado |
Pannella,G. Palynology of the Dakota Group and Graneros Shale of the Denver Basin. |
1966 |
original |
Middle Albian |
Early Cenomanian |
Nebraska |
Pannella,G. Palynology of the Dakota Group and Graneros Shale of the Denver Basin. |
1966 |
original |
Stephanian B |
Stephanian C |
USA |
Clendening,J.A. Sporological evidence on the geological age of the Dunkard strata in the Appalachian Basin. |
1970 |
original |
Gearyan |
|
Kansas |
Clendening,J.A. Palynological evidence for a Pennsylvanian age assignment of the Dunkard Group in the Appalachian Basin. |
1974 |
original |
Late Carboniferous |
Early Permian |
Argentina(Mendoza) |
Ottone,E.G. Santa Maxima Formation palynoflores, Upper Paleozoic, Argentine Republic. |
1989 |