| details |
Aptian |
Albian |
Austria |
Corna,O. Palynological study and nannofossils. (In: Study of the Lower Cretaceous of the Vienna Woods. Grun et al) |
1972 |
| details |
Hauterivian |
Aptian |
USSR(Ukrainian SSR) |
Voronova,M.A. On stratigraphical position and paleogeographical importance of the Sphagnumsporites, Raatz, genus spores |
1972 |
| details |
Aptian |
Albian |
Austria |
Gruen,W. et al. Studies in the Lower Cretaceous of the Vienna Woods. |
1972 |
| details |
Anisian |
|
USSR(Pre-Urals) |
Tverdokhlebov,V.P. et al. Age of Surakay graycolored deposits and the time-range of Bukobai Group. |
1976 |