| details |
Maastrichtian |
|
USSR(WSL) |
Grigoreva,K.N. Spore-pollen assemblages of Maestrichtian deposits of the Western Siberian Lowland. |
1966 |
| original |
Senonian |
Danian |
USSR(Siberia) |
Skuratenko,A.V. Some new spore species of Davalliaceae and Aspidiaceae from the Upper Cretaceous-Paleogene of Western Siberia. |
1968 |
| details |
Turonian |
|
USSR(Siberia) |
Grigoreva,K.N. Spores and pollen from the Senonian sediments of the West Siberian Lowland. (In: Stratigraphic and Paleontological Material of Siberia. V.I.Krasbov and Y.V.Teslanko, editors) |
1969 |