| details |
Late Eocene |
Oligocene |
USSR(Kazakh SSR) |
Zhezhel,O.N. The boundary between Eocene and Oligocene deposits at North Ustyurt (according to palynological data). (In: Palynology, Method and Stratigraphy) |
1973 |
| details |
Paleocene |
Pliocene |
USSR(Siberia) |
Fradkina,A.F. Palynocomplexes and stratigraphy of Paleogene and Neogene in Northeastern Russia |
1996 |
| details |
Paleocene |
Pliocene |
USSR(Chukchi Aut.Okrug) |
Fradkina,A.F. Palynocomplexes and stratigraphy of Paleogene and Neogene in Northeastern Russia |
1996 |
| details |
Paleocene |
Pliocene |
USSR(Yakut ASSR) |
Fradkina,A.F. Palynocomplexes and stratigraphy of Paleogene and Neogene in Northeastern Russia |
1996 |
| details |
Bartonian |
Priabonian |
USSR(WSL) |
Kulkova,I.A. Eocene plant microfossils of West Siberia. (In: Mikrofitofossilii i stratigrafiya Mezozzoya i Kainozoya Sibiri. S.B. Shatskiy, editor) |
1988 |