| original |
Eocene |
|
USSR(WSL) |
Yshakova,M.V. et al. Eocene. (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 |
Late Oligocene |
Early Miocene |
USSR(WSL) |
Ivanova,E.A. et al. Upper Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Late Oligocene |
Early Miocene |
USSR(WSL) |
Ivanova,E.A. et al. Upper 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. Upper Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Eocene |
|
USSR(Koryak Okrug) |
Sedova,M.A. Short description of spores and pollen from Eocene deposits of Kamchatka. (In: Atlas of Upper Cretaceous, Paleocene and Eocene spore-pollen complexes of various Regions of the USSR). |
1960 |