| details |
Barremian |
Aptian |
Germany |
Dжring,H. Spore-stratigraphic comparison between the Wealdean of northern Germany and of Southern England |
1966 |
| details |
Neocomian |
|
USSR(WSL) |
Bolkhovitina,N.A. Connection of Gleicheniaceae and Schizaeaceae fern with paleofloristic Regions of the Jurassic Period and Cretaceous Epoch in Euasia by palynological data. |
1971 |
| details |
Wealden |
Aptian |
E.Germany |
Bolkhovitina,N.A. Distribution of Schizaeaceous spores in Jurassic and Lower Cretaceous deposits of Eurasia. |
1971 |
| details |
Neocomian |
|
USSR(Siberia) |
Bolkhovitina,N.A. Distribution of Schizaeaceous spores in Jurassic and Lower Cretaceous deposits of Eurasia. |
1971 |
| details |
Hauterivian |
Barremian |
USSR(Yakut ASSR) |
Bolkhovitina,N.A. Distribution of Schizaeaceous spores in Jurassic and Lower Cretaceous deposits of Eurasia. |
1971 |