| original |
Early Keuper |
Middle Keuper |
USSR(WSL) |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| original |
Early Keuper |
Middle Keuper |
USSR(Russian Platform) |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| details |
Early Carnian |
|
USSR(Bashkir ASSR) |
Tuzhikova,V.I. On the age and Extent of the Surakaisk Suite and Bukobaisk series of the Southern Cis-Urals. (In: Triassic Stratigraphy of the Urals and Cis-Urals. Symposium on the Problems of Stratigraphy. #27). V.I.Tuzhikova and G.N.Papulov, editors) |
1979 |
| details |
Middle Triassic |
|
USSR(Chelyabinskaya) |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |