| details |
Middle Jurassic |
Early Cretaceous |
USSR(Yakut ASSR) |
Bobrov,A.K. The geological make-up of Yakuts ASSR and its oil gas potential. (In: Geological Symposium #5) |
1960 |
| details |
Aptian |
Albian |
USSR(Siberia) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Aptian |
Albian |
USSR(Far East) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Aptian |
Albian |
USSR(WSL) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Bajocian |
|
Nd |
Neviani,I. The stratigraphic value of conifer pollen in the Mesozoic |
1963 |