| details |
Rhaetian |
Liassic |
USSR(WSL) |
Klimko,S.A. Rhaetian Lias. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| details |
Permian |
|
USSR(Urals) |
Bochkarev,V.S. On the conditions of appearance and spreading of basic Permian flora in the Eastern Slope of the Urals and the Pre-Urals. (In: Questions of Paleogeographical Zonation in the Light of Paleontological Data). |
1967 |
| details |
Late Permian |
|
USSR(Kazakh SSR) |
Kyunttsel,M.K. Palynological characteristics of Upper Permian and Lower Triassic sediments in Vetluga Basin and Volga-Unzha interfluve within boundaries of Kostromia Province |
1965 |
| details |
Early Triassic |
|
USSR(Kazakh SSR) |
Kyunttsel,M.K. Palynological characteristics of Upper Permian and Lower Triassic sediments in Vetluga Basin and Volga-Unzha interfluve within boundaries of Kostromia Province |
1965 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 |
1958 |