| original |
Cenomanian |
Turonian |
USSR(WSL) |
Zauer,V.V. et al. Spore-pollen complexes of Mesozoic and Cenozoic deposits of the Region of the City Tyumen. |
1954 |
| details |
Cenomanian |
|
USSR(WSL) |
Ivanova,E.A. et al. Cenomanian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| details |
Cenomanian |
|
USSR(WSL) |
Filippova,E.A. Cenomanian. (In: Stratigraphy of Mesozoic and Cenozoic Periods of Western Siberian Lowland. E.A.Filippova, editor) |
1957 |
| details |
Middle Eocene |
|
W.Germany(Hesse) |
Krutzsch,W. Micropaleontologic (spore paleontology), investigation of the Brown Coal of the Geiseltal. |
1959 |