| original |
Early Triassic |
|
USSR(WSL) |
Malyavkina,V.S. Spores and pollen from Triassic deposits of the West Siberian Lowland. |
1964 |
| details |
Late Ladinian |
Early Carnian |
USSR(Urals) |
Tuzhikova,V.I. The age of Basel deposits of the Turin and Chelyabin series of the eastern Urals. (In: The Paleozoic and Mesozoic geology of the Urals and Transurals. Collection on the problems of stratigraphy,22.) |
1975 |
| details |
Induan |
|
USSR(Urals) |
Tuzhikova,V.I. Miospores and stratigraphy of supporting sections of the Uralian Triassic. (Lower Triassic - Upper Permian Boundary) |
1985 |
| details |
Early Triassic |
|
USSR(Siberia) |
Boersma,M. et al. Triassic palynomorphs, index to genera and species |
1987 |