| details |
Orenburgian |
Sakmarian |
China(Hopei) |
Hart,G.F. Permian palynofloras and their bearing on Continental Drift. (In: Paleogeographic Provinces and Provinciality, Charles A. Ross, editor) |
1974 |
| details |
Late Stephanian |
Zechstein |
Poland |
GŠ³recka,T. et al. Results of palynological investigations of Permo-Carboniferous in the North East of Wroclaw. |
1980 |
| 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 |