| details |
Hauterivian |
Barremian |
USSR(European) |
Voronova,M.A. Subdivision of Lower Cretaceous deposits in the northwestern part of the Dnieper-Donetsk Depression on the ground of resuts of sporopollen analysis. (In: The Importance of Palynological Analysis for the Stratigraphic and Paleofloristic Investigations. M.I. Nejshtadt, editor. Papers for the Second International Palynology Conference., Utrecht,1966) |
1966 |
| details |
Valanginian |
Hauterivian |
USSR(Ukrainian SSR) |
Yanovskaya,G.G. Spore-pollen complexes of the Upper Jurassic-Lower Cretaceous from the Prut-Dnester Interfluve. |
1971 |
| details |
Early Jurassic |
|
USSR(Caucasus) |
Yaroshenko,O.P. Spores and pollen complexes of Jurassic and Lower Cretaceous deposits of northern Caucasus and their stratigraphic importance |
1965 |
| details |
Early Cretaceous |
|
USSR(Caucasus) |
Yaroshenko,O.P. Spores and pollen complexes of Jurassic and Lower Cretaceous deposits of northern Caucasus and their stratigraphic importance |
1965 |