| details |
Paleocene |
Danian |
USSR(WSL) |
Zaklinskaya,E.D. Subdivision of Maestrichtian-Danian-Paleocene sediments of Western Siberia on the basis of data on spore and pollen Aalysis |
1960 |
| details |
Paleocene |
Danian |
USSR(Siberia) |
Vakhrameev,V.A. Paleobotanical characteristic of Continental deposits on the boundary between the Cretaceous and Paleogene systems of Sberia |
1960 |
| details |
Cretaceous |
|
USSR(WSL) |
Chlonova,A.F. Significance of individual forms of spores and pollen for correlation of continental deposits. (In: Problems of Biostratigraphy of the Continental Massif) |
1959 |
| original |
Early Paleogene |
Danian |
USSR(WSL) |
Chlonova,A.F. Isolation of guide species for the determination of age of sediments by spore-pollen analysis. |
1957 |