| details |
Early Permian |
Late Permian |
USSR(Tyumenskaya Oblast) |
Dibner,A.F. Stratigraphic significance of spore and pollen assemblages of Imangda Coal deposits in the Norilsk Region. |
1961 |
| details |
Permian |
|
USSR(Kazakh SSR) |
Chepikov,K.R. et al. Spores and pollen from oils of the Volga-Ural Region and their significance in solving the problem of oil migration. |
1960 |
| details |
Permian |
|
USSR |
Chepikov,K.R. et al. Spores and pollen in oils and Gases as migration Indices. |
1971 |
| details |
Late Carboniferous |
Early Permian |
USSR(E.Kazakh Oblast) |
Bublichenko,N.L. et al. On the age of the Gremiachinskaya Suite and new type of Copper mineralization in the Rudny Altai. |
1972 |
| details |
Permian |
|
USSR |
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 |