| original |
Early Oligocene |
|
USSR(WSL) |
Ushakova,M.V. et al. Lower Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Early Oligocene |
|
USSR(WSL) |
Ushakova,M.V. et al. Lower Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Miocene |
|
USSR(WSL) |
Ivanova,E.A. et al. Miocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Late Oligocene |
|
USSR(WSL) |
Filippova,E.A. Late Oligocene. (In: Stratigraphy of Mesozoic and Cenozoic Periods of Western Siberian Lowland. E.A.Filippova, editor) |
1957 |
| original |
Miocene |
|
USSR(WSL) |
Filippova,E.A. Miocene. (In: Stratigraphy of Mesozoic and Cenozoic Periods of Western Siberian Lowland. E.A.Filippova, editor) |
1957 |
| original |
Nd |
|
Nd |
Chlonova,A.F. Spores and pollen of the upper half of the Upper Cretaceous of the eastern part of the Western Siberian Lowland. |
1961 |
| details |
Maastrichtian |
|
USSR(WSL) |
Grigoreva,K.N. Spore-pollen assemblages of Maestrichtian deposits of the Western Siberian Lowland. |
1966 |
| details |
Maastrichtian |
|
USSR(WSL) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Late Eocene |
Early Oligocene |
Kazakstan |
Krasheninnikov,V.A. et al. Reference sections of the Eocene - Oligocene boundary strata on the territory of the former Soviet Union. The Northern Ustyurt sections (the Sandal Mountain and Aszeiryk Ravine, Western Kazakhstan). (In: Late Eocene-Early Oligocene geological and Biotical events on the Territory of the Former Soviet Union.Part 2: the regional geology of the Upper Eocene and ower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors) |
1996 |