| details |
Early Purbeckian |
|
United Kingdom |
Bolkhovitina,N.A. Comparison of Upper Jurassic palynological assemblages of the Russian Platform and England. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Late Aalenian |
Bathonian |
USSR(Uzbek SSR) |
Barash,B.I. et al. Stratigraphy of Jurassic deposits of Pitnyak Region |
1970 |
| details |
Early Callovian |
Middle Callovian |
USSR(Kazakh SSR) |
Alimov,K.A. et al. Jurassic spore and pollen assemblages of Ustyurt. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |