| details |
Late Tatarian |
|
USSR(Komi ASSR) |
Chalyashev,V.I. On stratigraphy of the Upper Permian and Triassic of northern Pre-Ural |
1963 |
| details |
Early Cambrian |
|
USSR(Russian Platform) |
Naumova,S.N. Spore complexes of the Riphean and Lower Cambrian in the USSR |
1961 |
| details |
Tatarian |
Induan |
USSR(Pre-Urals) |
Kyrbezhekova,A.N. Spore-pollen complexes in sediments inclosed in basalts of the Chernysheva Range. (In: Upper Paleozoic Terrigenous Deposits of the Urals.) |
1970 |
| details |
Ufimian |
Induan |
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 |