| details |
Late Permian |
Early Triassic |
USSR(Yakut ASSR) |
Safyainikov,Y.V. Concerning the formation, size and age of the Lower Triassic Tuffogenic structure of South Western Yakuts. (In: Material on the Biostratigraphy and Paleogeography of Eastern Siberia) |
1975 |
| 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 |
Aptian |
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 |
Valanginian |
Hauterivian |
USSR(Yakut ASSR) |
Boltenhagen,E. State of knowledge of Lower Cretaceous palynology |
1966 |
| details |
Liassic |
|
W.Germany |
Reissinger,A. Pollen analysis extended to all sedimentary rocks of the geological past. |
1950 |