| original |
Late Triassic |
|
USSR(WSL) |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| details |
Middle Triassic |
Late Triassic |
USSR(Komi ASSR) |
Chalyshev,V.I. et al. Biostratigraphy of the Triassic of the Pechorsk District. |
1966 |
| details |
Middle Triassic |
|
USSR(Chelyabinskaya) |
Tuzhikova,V.I. On the dating of the deposits of the Turinsk phytostratigraphy horizon, Turinsk and Bitkuyevskaya Suites of the Suhoyaksk Region Chelyabinsk Basin. (In: New data on the Triassic stratigraphy of the Paleo-Urals. V.I. Tuzikova and G.N. Papulov, editors) |
1980 |
| details |
Keuper |
|
USSR(Chelyabinskaya) |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |