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 |
Cimarronian |
|
Kansas |
Clendening,J.A. Palynological evidence for a Pennsylvanian age assignment of the Dunkard Group in the Appalachian Basin. |
1974 |
original |
Kazanian |
|
Brazil(Rio Grande Sul) |
Dellazana,J.G. Contribution to the palynology of the Irati form Ation, (Permian), Rio Grande do Sul, Brazil. |
1976 |
original |
Permian |
|
Brazil(Rio Grande Sul) |
Dellazana,J.G. Contribution to the palynology of the Irati Formation (Permian), Rio Grande do Sul, Brazil. |
1976 |