| details |
Early Ryazanian |
|
Greenland |
Hakansson,E. et al. Jurassic-Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland). |
1981 |
| details |
Valanginian |
|
France(Alpes,Hautes) |
Eland,H.B. Dinoflagellate cysts from the Valanginian at Angles (S.E.France) biostratigraphy and palaeoenvironmental implications |
1989 |
| details |
Late Barremian |
|
W.Germany(Niedersachsen) |
Lister,J.K. et al. Palynostratigraphy of the Barremian-Aptian succession in the Wiechendorf 1/86 and Hoheneggelsen Kb9 boreholes in the Lower Saxony Basin, North Germany. (In: The Barremian-Aptian Boundary. A Study of profiles from the boreal Cretaceous.E.Kemper, editor) |
1995 |