| details |
Givetian |
Frasnian |
USSR(Kemerovskaya) |
Andreeva,E.M. et al. New data on the phytostratigraphy of Devonian Deposits in the Altay-Sayan Mountain Region. (In: Contributions to the Phytostratigraphy of Devonian Deposits in the Altay-Sayon Mountain Region, Collected Articles) |
1962 |
| details |
Late Givetian |
|
USSR(Tuvinskaya A.O.) |
Predtechenskii,N.N. Stratigraphy of Devonian deposits of Tuvy and Western Sayan. (In: Contributions to the geology of the Sayan-Altai Folded Region) |
1967 |
| details |
Famennian |
|
USSR(Urals) |
Chibrikova,E.V. Stratigraphy of Devonian and older Paleozoic deposits of the Southern Urals and the Pre-Urals (According to plant Microfssils). |
1977 |