| original |
Hauterivian |
Barremian |
Mongolian Republic |
Malyavkina,V.S. Spores and pollen of the Lower Cretaceous of the eastern Gobi Depression. |
1958 |
| details |
Late Jurassic |
Oligocene |
USSR(Russian Platform) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Late Jurassic |
Oligocene |
USSR(Ukrainian SSR) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Late Jurassic |
Oligocene |
USSR(Kazakh SSR) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Aptian |
|
USSR(Pre-Urals) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Aptian |
Oligocene |
USSR(WSL) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Middle Senonian |
Early Tertiary |
W.Germany |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |