| details |
Late Westphalian B |
|
W.Germany(N.Rhine) |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |
| details |
Early Permian |
|
China(Liaoning) |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |
| details |
Rotliegendes |
|
Germany(Leipzig) |
Schaarschmidt,F. Palynological investigation of the Lower Permian of the Thuringen Wald. |
1957 |
| details |
Early Permian |
|
China(Liaoning) |
Imgrund,R. Dispersed spores of the Kaiping Basin, their paleontologic and stratigraphic comparison with the Upper Carboniferous of the Ruhr area and the Pennsylvanian of Illinois. |
1960 |
| details |
Early Artinskian |
|
Turkey |
Agrali,B. et al. Palynologic study of the coals of Hazro and estimation of the age of lacustrine horizons of the Permian-Carboniferous. |
1967 |
| details |
Artinskian |
Early Kungurian |
Turkey |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |