| details |
Volgian |
Valanginian |
USSR(Khabarovsk Kray) |
Shugaevskaya,O.V. et al. Upper Mesozoic spore and pollen assemblages of southern Far East and their significance for stratigraphy. |
1974 |
| details |
Bathonian |
|
USSR(European) |
Dobrutskaya,N.A. Jurassic and Early Cretaceous spore-pollen assemblages of the northern part of the Russian Platform and their importace for stratigraphic and paleofloristic definition. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Barremian |
Aptian |
USSR(Far East) |
Shugaevskaya,O.V. et al. Spores and pollen from the coal sequence of the Bureyan Basin with reference to their stratigraphic significance. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Late Jurassic |
Early Cretaceous |
USSR(Amurskaya Oblast) |
Shugaevskaya,O.V. et al. Spores with area from the Coal-bearing strata of Bureya Basin. |
1973 |
| details |
Early Jurassic |
|
USSR(Ukrainian SSR) |
Semenova,E.V. Spore and pollen assemblages of deposits of the Jurassic and Triassic Boundary of the Don Basin. |
1970 |
| details |
Jurassic |
|
USSR(Siberia) |
Semenova,E.V. Spore and pollen assemblages of deposits of the Jurassic and Triassic Boundary of the Don Basin. |
1970 |