original |
Cenomanian |
Turonian |
Spain |
Amerom,H.W.J.Van Upper-Cretaceous pollen and spores assemblages from the so-called "Wealden" of the Province of Leon (Northern Spain). |
1965 |
original |
Late Jurassic |
Oligocene |
USSR(Russian Platform) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
original |
Late Jurassic |
Oligocene |
USSR(Ukrainian SSR) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
original |
Late Jurassic |
Oligocene |
USSR(Kazakh SSR) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
original |
Aptian |
|
USSR(Pre-Urals) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
original |
Aptian |
Oligocene |
USSR(WSL) |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
original |
Middle Senonian |
Early Tertiary |
W.Germany |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |