| details |
Valanginian |
|
USSR(Taymyr Nat.Okrug) |
Kara-Murza,E.N. Palynological basis of stratigraphical subdivision of the Mesozoic deposits of the Khatanga Depression. |
1960 |
| details |
Valanginian |
|
USSR(Taymyr Nat.Okrug) |
Kara-Murza,E.N. Palynological basis of stratigraphical subdivision of the Mesozoic deposits of the Khatanga Depression. |
1960 |
| details |
Ladinian |
|
USSR(Siberia) |
Dagis,A.S. et al. Stratigraphy of the Ladinian Stage of North Central Siberia. (In: The Palaeontology and Stratigraphy of the Middle Triassic of Siberia) |
1980 |
| details |
Early Triassic |
|
USSR(Kalmyr ASSR) |
Medvedeva,A.M. Palynological investigation of Petroleum |
1978 |