| details |
Late Permian |
|
USSR(Gorki) |
Dibner,A.F. On two spore-pollen complexes from deposits of the Pechora Series. (In: Scientific Notes, Palaeontology and biostratigraphy) |
1963 |
| details |
Ufimian |
|
USSR(Yakut ASSR) |
Dibner,A.F. Separation of Permian deposits of the Oleneks Rise into formations on palynological data. |
1965 |
| details |
Early Permian |
|
USSR(Yakut ASSR) |
Borshcheva,N.A. et al. The Permian of the Udzha River Basin |
1969 |
| details |
Kungurian |
Kazanian |
USSR(Yakut ASSR) |
Hart,G.F. The biostratigraphy of Permian palynofloras. |
1970 |