| details |
Miocene |
Middle Pliocene |
USSR(Kazakh SSR) |
Bertels-Uspenskaya,I.A. et al. Caspian Lowland and Sub-Ural Plate. (In: Stratigrafiya SSSR, Neogenova Sistema. M.V.Muratov and L.A.Nevesskaya, editors) |
1986 |
| details |
Late Oligocene |
Early Miocene |
USSR(Siberia) |
Semochkina,T.G. et al. Palynological evidence of the Paleogene-Neogene boundary boundary of the West Siberian Plain. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |
| details |
Early Pliocene |
|
France(Bretagne) |
Pons,A.H. Palynologic contribution to the study of the Pliocene flora and vegetation of the Rhodanian Region |
1964 |