| original |
Late Albian |
|
USSR(Kazakh SSR) |
Bolkhovitina,N.A. Spore and pollen characteristics of Cretaceous layers in the Central Regions of the USSR. |
1953 |
| details |
Early Cretaceous |
|
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |
| details |
Valanginian |
|
USSR(Kursk) |
Shramkova,G.V. Spore and pollen complexes of the Lower Volgian Stage and the Neocomian Superstage on the Territory of Kursk magnetic anomal. (In: The Importance of Palynological Analysis for the Stratigraphic and Paleofloristic Investigations. M.I. Nejshtadt, editor. Papers for the Second International Palynology Conference., Utrecht,1966) |
1966 |
| details |
Aptian |
|
USSR(Ukrainian SSR) |
Voronova,M.A. Stratigraphic subdivision of Lower Cretaceous sediments of the Dnieper-Donets Basin, based on palynology. |
1971 |
| details |
Coniacian |
Maastrichtian |
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 |