| original |
Early Frasnian |
|
USSR(Komi ASSR) |
Arkhangelskaya,A.D. New types of spores in Devonian deposits of the Russian Platform). (In: Spore-pollen Complexes and Stratigraphy of the Upper Proterozoic, Paleozoic and Mesozoic of the Volga-Uragarea and Central Asia. A.B.Filimonova and A.D.Archangelskaya, editors) |
1963 |
| details |
Frasnian |
|
England(Bedfordshire) |
Mortimer,M.G. et al. Devonian megaspores from the Wyboston borehole, Bedfordshire, England |
1967 |
| original |
Frasnian |
|
USSR(Udmurt ASSR) |
Arkhangelskaya,A.D. New species of spores from Devonian deposits of the Russian Platform. |
1963 |
| original |
Frasnian |
|
USSR(Komi ASSR) |
Arkhangelskaya,A.D. New species of spores from Devonian deposits of the Russian Platform. |
1963 |
| original |
Eifelian |
|
USSR(Nenets Nat.Okrug) |
Voitovich,I.A. The stratigraphic significance of the differentiation of the Middle Devonian and Lower Part of Upper Devonian of Iman on the basis of the study of spore and pollen assemblges. |
1967 |