| details |
Hauterivian |
Barremian |
USSR(WSL) |
Markova,L.G. et al. Spores and pollen of the Lower Cretaceous layers of the Turukhansk borehole. |
1960 |
| details |
Hauterivian |
Barremian |
USSR(Siberia) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Late Albian |
Early Campanian |
USSR(Yakut ASSR) |
Samoilovich,S.R. Palynological characterization of the Upper Cretaceous deposits in Western Yakutia. (In: Questions of Phytostratigraphy. S.R.Samoilovich et al, editors) |
1977 |