| original |
Late Carboniferous |
Early Permian |
USSR(Ukrainian SSR) |
Inosova,K.I. et al. Atlas of microspores and pollen of Upper Carboniferous and Lower Permian of Donets Basin. |
1976 |
| details |
Early Asselian |
|
USSR(Rostov) |
Inosova,K.I. et al. Miospores. (In: Key section of boundary Carboniferous and Permian Beds of the South of the eastern-European Platform, (Gzhelian and Asselian Stages, Skosyrskaya Borehole N4199) |
1983 |
| details |
Late Gzelian |
|
USSR(Kazakh SSR) |
Podgainaya,N.N. et al. Assemblages of Middle and Upper Carboniferous Zonal miospores from the south-western Precaspian Depression, Russia |
1996 |