| details |
Middle Pliocene |
|
USSR(Yakut ASSR) |
Khitrova,P.M. et al. Palynological Grounds for stratigraphical subdivision of Neogene-Lower Quaternary deposits from the South Margin of the Yamo-Indigirka Lowland |
1971 |
| details |
Rhaetian |
Albian |
USSR(Yakut ASSR) |
Verbitskaya,Z.I. Characteristics of the Basic spore-pollen complexes of Mesozoic deposits. (In: The History of Upper Mesozoic Coal Accumulation in the Territory of Buryat ASSR and the Southeast Part of the Lensk Basin.) |
1963 |
| details |
Early Valanginian |
Middle Valanginian |
USSR(Yakut ASSR) |
Kara-Murza,E.N. Some data on the composition of spore-pollen complexes of the marine Lower Cretaceous of the Nordvik Region. |
1958 |
| details |
Late Liassic |
|
USSR(Yakut ASSR) |
Ilina,V.U. Palynological characteristics of Jurassic Layers of Siberia. |
1971 |
| details |
Toarcian |
|
USSR(Yakut ASSR) |
Ilyina,V.I. Biostratigraphic significance of Toarcian spore-pollen assemblage of Siberia. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |