| original |
Kimmeridgian |
Valanginian |
USSR(Siberia) |
Zatonskaya,S.G. Algae of the Upper Jurassic and the lowest Parts of the Lower Cretaceous in the Shaim oil-bearing Region |
1983 |
| details |
Early Aalenian |
|
USSR(Siberia) |
Ilyina,V.I. Jurassic marine and nonmarine palynostratigraphy of Siberia. |
1985 |
| details |
Late Toarcian |
Early Aalenian |
USSR(Siberia) |
Ilyina,V.I. Subdivision and correlation of the marine and Non-Marine Jurassic sediments in Siberia based on palynological evidence |
1986 |
| details |
Bathonian |
|
USSR(Kazakh SSR) |
Duludenko,M.P. et al. The flora of the Borolsay Formation of the Karatau range (Southern Kazakhstan) |
1989 |
| details |
Late Hauterivian |
Early Barremian |
W.Germany(Niedersachsen) |
Kirsch,K.-H. et al. Quantitative studies of dinoflagellate cysts profile of the boundary beds of the Hauterivian - Barremian Boundary of the Claypit Otto Gott near Sarstedt, (Niedersachsen, northern Germany). |
1995 |
| details |
Middle Volgian |
|
Russian Platform |
Riding,J.B. et al. Jurassic and Lowermost Cretaceous dinoflagellate cyst biostratigraphy of the Russian Platform and Northern Siberia, Russia. |
1999 |