| details |
Early Triassic |
|
USSR(Far East) |
Sukhov,L.G. et al. Biostratigraphy of Volcanic Formations in the western part of the Tunguska Syneclise |
1966 |
| details |
Early Triassic |
|
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |
| details |
Early Triassic |
|
USSR(Arkhangelsk Oblast) |
Molin,V.A. Vetluzhsk series |
1969 |
| 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 |