| details |
Volgian |
Valanginian |
USSR(Russian Platform) |
Kuznetsova,N.I. et al. Flora and vegetation of the South Western Russian Platform in the Mesozoic and Cenozoic (According to palynological evidence) |
1988 |
| details |
Volgian |
|
USSR(Ukrainian SSR) |
Voronova,M.A. Palynological characteristic of the contiguous Upper Jurassic-Lower Cretaceous formations of the Dnepr-Donets Trough. |
1971 |
| details |
Ypresian |
|
France(Marne) |
Gruas-Cavagnetto,C. et al. A fossilized mangrove soil in the Lignites of Soissonnais, (Ypresian), at Verzenay (Marne). |
1980 |