| details |
Late Permian |
|
USSR(Arkhangelsk Oblast) |
Molin,V.A. Ufimsk Stage |
1969 |
| details |
Late Permian |
|
USSR(Komi ASSR) |
Molin,V.A. et al. Palynological characteristic of the Ufimsk deposits in Western Pritiman |
1967 |
| details |
Early Triassic |
Middle Triassic |
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |
| details |
Nd |
|
Nd |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| details |
Keuper |
|
Switzerland |
Leschik,G. The Keuper flora of Neuewelt near Basel.2. TheIso and microspores. |
1955 |