| original |
Early Valanginian |
|
E.Germany(Rostock) |
Dжring,H. Spore-palynologic classification of the Wealdean in Western Mecklenburg (Werlestructure). |
1965 |
| details |
Late Berriasian |
Hauterivian |
E.Germany |
Dжring,H. The stratigraphic classification of spores from the Lower Cretaceous of northern Central Europe. |
1966 |
| details |
Early Berriasian |
|
USSR(Ukrainian SSR) |
Kuvayeva,S.B. et al. Palynological characteristic of the Lower Cretaceous deposits of the mountain part of Crimea. |
1973 |
| details |
Valanginian |
|
Europe |
Dжrhжfer,G. Distribution and stratigraphic utility of Oxfordian to Valanginian miospores in Europe and North America. |
1976 |