| details |
Givetian |
|
USSR(Ukrainian SSR) |
Raskatova,L.G. A detailed stratigraphic subdivision of the Devonian of the Central Devonian Field in the light of palynological evidence. |
1974 |
| details |
Givetian |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. Stratigraphy of Devonian and older Paleozoic deposits of the Southern Urals and the Pre-Urals (According to plant Microfssils). |
1977 |
| details |
Givetian |
|
USSR(Komi ASSR) |
Yalysheva,A.A. Palynological bases for the Middle Devonian age of Sublaterite ore-bearing formations of Timan. (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |