| details |
Middle Oligocene |
|
USSR(WSL) |
Gladkova,A.N. Fossil Myricaceae of Western Siberia. |
1965 |
| details |
Campanian |
|
USSR(Krasnoyarsk Kray) |
Bondarenko,N.M. Palynological characteristics of deposits of the Campanian Stage of the Ust-Yenisei Depression |
1969 |
| details |
Middle Oligocene |
|
USSR(Ukrainian SSR) |
Shchekina,N.A. Results of spore And-pollen investigation of the Middle Maikop deposits of the South of the Ukraine |
1969 |
| details |
Late Oligocene |
|
USSR(Ukrainian SSR) |
Shchekina,N.A. Results of spore And-pollen investigation of the Middle Maikop deposits of the South of the Ukraine |
1969 |
| details |
Middle Miocene |
|
USSR(Georgian SSR) |
Ramishvili,I.Sh. The Middle Miocene flora of the Western Caucasus and the further stages of their development. |
1977 |