| details |
Early Frasnian |
|
USSR(Bashkir ASSR) |
Pykhova,N.G. The use of the method of spore analysis for the correlation of the Pashiya deposits in the Upper Zaitov Field. (In: Oil Field geology and Reservoir Capacity) |
1963 |
| details |
Early Frasnian |
|
USSR(E.Kazakh Oblast) |
Mikhailova,N.I. Spore-pollen assemblages of Frasnian deposits of Rudny Altai |
1967 |
| details |
Late Frasnian |
|
USSR(Baltic) |
Sorokin,V.S. Upper Frasnian Substage of the main Devonian Field. (In: Phanerozoic Stratigraphy of the Baltic States Paleontological Assemblages, Structure and Composition of Sediments. V.S.Sorokin, editor) |
1978 |