| 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 |
Hauterivian |
Aptian |
USSR(Primorsk Kray) |
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 |
Nd |
|
Nd |
Davies,E.H. The Anemiacean, Schizaeacean and related spores. An index to genera and species. |
1985 |
| details |
Hauterivian |
Barremian |
Mongolian Republic |
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 |
Barremian |
Aptian |
Germany |
Dжring,H. Spore-stratigraphic comparison between the Wealdean of northern Germany and of Southern England |
1966 |
| details |
Middle Barremian |
Early Aptian |
E.Germany |
Dжring,H. The stratigraphic classification of spores from the Lower Cretaceous of northern Central Europe. |
1966 |