| original |
Early 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(Kazakh SSR) |
Barbashinova,V.N. Spore and pollen complexes of Mesozoic Layers of the northern part of the Turgayskaya Basin |
1956 |
| details |
Late Cretaceous |
|
USSR(Kazakh SSR) |
Barbashinova,V.N. Spore and pollen complexes of Mesozoic Layers of the northern part of the Turgayskaya Basin |
1956 |
| details |
Aptian |
Albian |
USSR(Ukrainian SSR) |
Pokrovskaya,I.M. Lower Cretaceous spore-pollen complexes of the Russian Platform and the Crimea. (In: Atlas of Lower Cretaceous spore-pollen complexes of some regions of USSR. I.M.Pokyovsksys and N.K.Stel'mak, editors) |
1964 |
| details |
Aptian |
Middle Albian |
USSR(Kazakh SSR) |
Boytsova,E.P. Lower Cretaceous spore-pollen complexes of Western Kazakhstan. (In: Atlas of Lower Cretaceous spore-pollen complexes of some regions of USSR. I.M.Pokyovsksys and N.K.Stel'mak, editors) |
1964 |