| details |
Volgian |
|
USSR(Siberia) |
Vakhrameev,V.A. et al. Paleobotanical data and the Jurassic-Cretaceous boundary. |
1975 |
| details |
Volgian |
|
USSR(Taymyr Nat.Okrug) |
Vakhrameev,V.A. et al. Paleobotanical data and the Jurassic-Cretaceous boundary. |
1975 |
| details |
Late Permian |
|
USSR(Kazakh SSR) |
Polukhina,V.A. Spore and pollen assemblages of effusive sedimentary layers of Kushmur in the Turgavskaya Basin. |
1960 |
| details |
Aalenian |
|
USSR(Ukrainian SSR) |
Semenova,E.V. Spore-pollen complexes of Triassic (Ret), and Lower and Middle Jurassic of the northwestern part of the Donetz Basin. (In: The Importance of Palynological Analysis for the Stratigraphic and Paleofloristic Investigations. M.I. Nejshtadt, editor. Papers for the Second International Palynology Conference., Utrecht,1966) |
1966 |
| details |
Middle Jurassic |
|
USSR(Bashkir ASSR) |
Yakhimovich,N.N. Jurassic stratigrapahy of Tanalyk-Baymak Depression of South Wal |
1996 |
| original |
Early Jurassic |
|
USSR(Siberia) |
Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. |
1956 |