| original |
Early Triassic |
|
USSR(Russian Platform) |
Varyukhina,L.M. Spores and pollen of the red-colored coal-bearing Permian and Triassic sediments of the northeastern part of European SSSR. |
1971 |
| details |
Late Tatarian |
|
USSR(Kirov) |
Olferev,A.G. On the correlation of Stratotypic sections of the Upper Tatavian Substage |
1974 |
| details |
Middle Triassic |
|
USSR(Tomskaya Oblast) |
Markkova,L.G. et al. New palynological evidence in the study of Triassic Striata of Tomsk area. |
1980 |
| details |
Induan |
|
USSR(Irkutskaya Oblast) |
Portnyagina,L.A. et al. To the problem of Karamazar Permian-Triassic deposits age. (In: Palynology in the USSR. A.F.Chlonova, editor) |
1988 |