| details |
Cenomanian |
Turonian |
USSR(WSL) |
Chlonova,A.F. The composition in species of spores and pollen in the deposits of the Upper Cretaceous of the Chulym-Yenisyei Lowlands. |
1960 |
| details |
Cenomanian |
Turonian |
USSR(WSL) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Meotian |
|
USSR(Georgian SSR) |
Purtseladze,Kh.N. Palynological characteristics of the Meotian deposits of Western Georgia. |
1977 |
| details |
Middle Pontian |
|
Georgian |
Shatilova,I.I. et al. The genus Pteris L. in the Neogene deposits of Western Georgia |
1996 |