| 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 |
Nd |
|
Nd |
Hart,G.F. The systematics and distribution of Permian miospores. |
1965 |
| 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 |
Nd |
|
Nd |
Poort,R.J. et al. Aspects of Permian palaeobotany and palynology XVII: Conifer extinction in Europe at the Permian-Triassic Junction: Morpholo ultrastructure and geographic/Stratigraphic distribution of Nuskoisporites dulhuntyi (Prepollen of Ortiseia, Walchiaceae) |
1997 |