| details |
Late Permian |
|
USSR(Yakut ASSR) |
Romanovskaya,G.M. et al. The boundary between the Permian and Triassic in Central Siberia (according to palynological data). (In: Palynology, Method and Stratigraphy) |
1973 |
| details |
Late Permian |
|
USSR(Krasnoyarsk Kray) |
Orlova,E.F. et al. Upper Permian and Triassic stratigraphy of rocks from the southeast part of the Tungussian Syneclise. |
1974 |
| details |
Late Permian |
|
USSR(European) |
Dryagina,L.L. Palynological characteristics of the Rrunak key section of Upper Permian deposits of the Kolchuginsk Series in the Uznetsk Basin. |
1980 |
| details |
Late Permian |
|
USSR(Yakut ASSR) |
Fedotova,L.I. et al. News in stratigraphy of Upper Paleozoic sediments in the Anabarskaya Anteclise |
1986 |
| details |
Permian |
|
USSR(Yakut ASSR) |
Grausman,V.V. et al. Stratigraphy of Upper Paleozoic deposits of the Vilyuy Synecline |
1987 |
| details |
Middle Tatarian |
|
USSR(Krasnoyarsk Kray) |
Betekhtina,O.A. et al. Palaeontological characteristics of the regional horizons of the Kuznetz Basin. (In: The Upper Paleozoic of the Angara Basins;Fauna and Flora. I.T. Zhuravleva and V.I.Ilina, editor) |
1988 |
| details |
Tatarian |
|
USSR(Siberia) |
Dryagina,L.L. Biostratigraphic analysis of some groups of organic remains; evolutionary stages and methods of stratigraphic utilization; spores and pollen. (In: The Upper Paleozoic of the Angara Basins;Fauna and Flora. I.T. Zhuravleva and V.I.Ilina, editor) |
1988 |