| details |
Kungurian |
Kazanian |
USSR(Urals) |
Samoilovich,S.R. Pollen and spores of Permian deposits of Cherdyn and Aktyubinsk in the Lower Urals. (In: Palaeobotanical Symposium) |
1953 |
| details |
Late Kungurian |
Kazanian |
USSR(Pre-Urals) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |
| details |
Sakmarian |
Kungurian |
USSR(Kazakh SSR) |
Bogomolova,L.L. et al. Subsalt deposits on the East Side of the Caspian Syneclise (Kenkiyak-Mortuk-Zhanazhol area). |
1963 |
| original |
Early Permian |
Late Permian |
USSR(Pre-Urals) |
Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. |
1941 |
| details |
Kungurian |
Ufimian |
USSR(Permsk Oblast) |
Sivertseva,I.A. The spore-pollen complexes of the Kungurian and Ufimian Stages of the Solikamian Region |
1969 |