| details |
Aptian |
Turonian |
USSR(Siberia) |
Markova,L.G. Distribution of Schizaeaceae spores in the Cretaceous Layers of the Western Siberian Lowland and their importance for Sratigraphy. |
1966 |
| details |
Aptian |
Albian |
USSR(WSL) |
Ivanova,E.A. et al. Pollen and spores of Western Siberia; Jurassic to Paleocene. |
1961 |
| details |
Aptian |
Albian |
USSR(WSL) |
Markova,L.G. The history of development of the Early Cretaceous flora from the Western Siberian Lowlands (Based on palynological facts). |
1971 |
| details |
Aptian |
Turonian |
USSR(WSL) |
Song,Z.-C. et al. Fossil Spores and Pollen of China. Volume 2: The Mezozoic Spores and Pollen. |
2000 |