| original |
Kungurian |
|
USSR(Urals) |
Samoilovich,S.R. Pollen and spores of Permian deposits of Cherdyn and Aktyubinsk in the Lower Urals. (In: Palaeobotanical Symposium) |
1953 |
| details |
Early Permian |
|
USSR(Chelyabinskaya) |
Silina,Y.N. et al. Permian strata on the East Side of the Urals |
1962 |
| details |
Permian |
|
USSR(Pre-Urals) |
Hart,G.F. The systematics and distribution of Permian miospores. |
1965 |
| details |
Anisian |
|
Romania |
Antonescu,E. Study of the Anisian microflora from the Cristian Valley (Brasov). |
1970 |
| details |
Anisian |
Ladinian |
Czechoslovakia |
Biely,A. et al. Triassic age of Limestones enveloping crystalline rocks of the Veporides, (Struzchike Area). |
1975 |
| details |
Devonian |
|
USSR(Ukrainian SSR) |
Medvedeva,A.M. Palynological investigation of Petroleum |
1978 |