| details |
Early Triassic |
|
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Tatarian and Triassic deposits of the Pechorsk Basin and age of the fold area of the northern Pre -Ural Trough. (In: Collected Articles on the Geology of the Arctic. #14, B.V.Tkachenko, editor) |
1960 |
| details |
Early Scythian |
|
USSR(Komi ASSR) |
Budanov,G.D. et al. Triassic Vetluga series of the Mezen' Basin |
1963 |
| details |
Early Triassic |
Late Triassic |
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |