| original |
Aptian |
Danian |
USSR(WSL) |
Gromova,N.S. et al. Short description of spores and pollen from Upper Cretaceous and Paleocene deposits of the central and southeastern regions of the Western Siberian Lowland. (In: Atlas of Upper Cretaceous, Paleocene and Eocene spore-pollen complexes of various Regions of the USSR). |
1960 |
| original |
Middle Eocene |
|
USSR(Ukrainian SSR) |
Asatkina,E.F. et al. Short description of spores and pollen from Mid-Eocene deposits of the Ukraine. (In: Atlas of Upper Cretaceous, Paleocene and Eocene spore-pollen complexes of various Regions of the USSR). |
1960 |
| original |
Hauterivian |
Barremian |
USSR(Buryat ASSR) |
Sedova,M.A. Description of spores and pollen in Neocomian Deposits of the Vitimsk Plateau and Transbaikal. (In: Atlas of Lower Cretaceous spore-pollen complexes of some regions of USSR. I.M.Pokyovsksys and N.K.Stel'mak, editors) |
1964 |