| details |
Late Tournaisian |
Early Visean |
USSR(Moscow Basin) |
Umnova,N.I. et al. On Malinovsky deposits of Lower Carboniferous age on the Southern Limb of Moscow Basin |
1962 |
| original |
Early Visean |
|
USSR(Belorussian SSR) |
Kedo,G.I. Spores of the Lower Carboniferous of the Pripyat Trough, (Yasmopolyanskii Substage). (In: Paleontology and Stratigraphy of the BSSR) |
1966 |
| details |
Early Carboniferous |
|
USSR(Ukrainian SSR) |
Shkrebta,G.P. et al. On the spores and pollen Compexes in crude oils and oil bearing Rocks |
1971 |