| original |
Early Keuper |
|
USSR(WSL) |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| original |
Keuper |
|
USSR(WSL) |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| details |
Middle Triassic |
|
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |
| details |
Middle Keuper |
|
USSR(Urals) |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |
| details |
Middle Keuper |
|
USSR(Urals) |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |