Radiolaria
- Citations total:
- 3
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| details | Middle Eocene | Late Eocene | USSR(Kalinin) | Pokrovskaya,I.M. et al. Palynological basis of the age of the Baltic Amber-bearing deposits | 1960 |
| details | Early Oligocene | USSR(Ukrainian SSR) | Korallova,V.V. Khaduman spore-pollen complex from Oligocene sediments of the eastern Black Sea Region. | 1963 | |
| details | Late Miocene | Early Pliocene | USSR(Arkhangelsk Oblast) | Belkin,V.I. Neogene deposits of the Bol'shezemel Skaya Tundra | 1963 |