| details |
Orenburgian |
|
USSR(Urals) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |
| details |
Sakmarian |
|
USSR(Urals) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Sakmarian |
|
USSR(Aktyubinskaya) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Late Carboniferous |
|
USSR(Urals) |
Naumova,S.N. et al. On the stratigraphic position of the Autunian and its Analogs |
1964 |