| details |
Early Oligocene |
Middle Oligocene |
USSR(Siberia) |
Lyubomirova,K.A. The vegetation of northwest Siberia in the Late Paleogene. (In: Palynology in Petroleum Geology. N.M.Ivanova, editor) |
1971 |
| original |
Late Eocene |
Middle Oligocene |
USSR(WSL) |
Lyubomirova,K.A. Fossil pollen of Magnoliaceae and its significance for stratigraphy and paleofloristics of Oligocene of Western Siberia. |
1973 |
| details |
Late Eocene |
|
USSR(Yamalo-Nenets) |
Lyubomirova,K.A. The palynological characteristics of the Chegansk horizon of North West Siberia. (In: Palynological Studies. Collected Articles. S.R.Samoilovich, editor) |
1976 |