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| details | Early Permian | Late Permian | USSR(Tyumenskaya Oblast) | Dibner,A.F. Stratigraphic significance of spore and pollen assemblages of Imangda Coal deposits in the Norilsk Region. | 1961 |
| details | Early Permian | USSR(Tyumenskaya Oblast) | Dibner,A.F. Stratigraphic significance of spore and pollen assemblages of Imangda Coal deposits in the Norilsk Region. | 1961 | |
| details | Permian | USSR(Evenki Nat.Okrug) | Medvedeva,A.M. Stratigraphic subdivision of lower horizons of the Tunguska Series by spore-pollen analysis. | 1960 |