| details |
Early Frasnian |
|
USSR(Urals) |
Chibrikova,E.V. Boundaries and subdivisions of the Middle Devonian based on palynological data. (In: Middle Devonian of the USSR; Its Boundaries and Stage Subdivision. M.A. Kamaletdinova and M.A.Kzhonskitskaya, editors) |
1985 |
| details |
Frasnian |
|
Belarus |
Obukhovskaya,T.G. Miospores of the Givetian-Frasnian boundary deposits in Belarus. |
2000 |
| details |
Frasnian |
|
USSR(Kaliningrad) |
Yalysheva,A.A. Palynostratigraphy of Devonian deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |
| details |
Frasnian |
|
USSR(Komi ASSR) |
Liu,S.-W. et al. Conchostracans and spores of Upper Devonian Huangjiadeng Formation in Hubei Province. |
1985 |