| details |
Early Permian |
|
USSR(Urals) |
Dyupina,G.V. Lower Permian spore-pollen assemblage from Bagagyaka River and Karabolki River. (In: Permian deposits of the East Slope of the Urals. Collection on Problems of Stratigraphy #9. N.P.Malakhov, editor) |
1967 |
| details |
Late Devonian |
|
USSR(Ukrainian SSR) |
Ishchenko,A.M. Spore and pollen analysis of the Lower Carboniferous deposits of the Dnieper-Donets Basin. |
1958 |
| details |
Early Carboniferous |
|
USSR(Siberia) |
Dibner,A.F. Palynologic Proof of the Carboniferous and Permian age of deposits in Severnaya Zemlya |
1981 |