| details |
Givetian |
|
USSR(Belorussian SSR) |
Kedo,G.I. Spores of the Middle Devonian of the Northeast of Belorussian Ssr |
1955 |
| details |
Eifelian |
|
USSR(Russian Platform) |
Krylova,A.K. et al. Devonian System. (In: Stratigraphy and Paleogeography of the Sinian, Paleozoic and Triassic of the Western Russian Platform. E.M.Lutkevich and A.K.Krilova, editor) |
1973 |
| details |
Middle Siegenian |
Early Emsian |
USSR(Latvian SSR) |
Lyarskaya,L.A. The Lower/Middle Devonian boundary deposits of the Baltic Region. (In: Regional Geology of the Baltic Area.) |
1974 |