| details |
Aptian |
|
USSR(Azerbaijan SSR) |
Menner,V.V. The spore-pollen analysis method of direct correlation of strata of diverse facies. Chapter 2: Biostratigraphic principles of correlation of marine, lagoon and continental formations. |
1962 |
| details |
Danian |
|
USSR(WSL) |
Grigoreva,K.N. et al. On the question of the presence of Danian (?) deposits in the eastern West Siberia. (In: Paleopalynology Material of Central Siberia. L.E.Markova, editor) |
1971 |
| details |
Recent |
|
Nd |
Khan,A.M. et al. A note on genus Polypodiisporites, R. Potonie |
1971 |
| details |
Late Cretaceous |
Early Tertiary |
USSR(WSL) |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |