| details |
Early Aptian |
|
North Sea |
Duxbury,S. A palynological zonation scheme for the Lower Cretaceous: United Kingdom Sector, Central North Sea. |
2001 |
| details |
Berriasian |
Early Barremian |
Portugal |
Berthou,P.Y. et al. Stratigraphic implications of palynological studies on Berriasian to Albian deposits from Western and Southern Portugal. |
1990 |
| original |
Berriasian |
Barremian |
England(Yorkshire) |
Duxbury,S. A palynostratigraphy of the Berriasian to Barremian of the Speeton Clay of Speeton, England. |
1977 |
| details |
Barremian |
|
Spitsbergen |
Grosfjeld,K. Palynoligocal age constraints on the base of the Helvetiafjellet Formation, (Barremian) on Spitsbergen. |
1992 |
| details |
Barremian |
|
England(Yorkshire) |
Harding,I.C. A dinocyst calibration of the European Boreal Barremian |
1990 |
| details |
Barremian |
|
England(Lincolnshire) |
Harding,I.C. A dinocyst calibration of the European Boreal Barremian |
1990 |
| details |
Barremian |
Early Aptian |
W.Germany(Niedersachsen) |
Heilmann-Clausen,C. et al. A dinoflagellate correlation of Barremian-Aptian (Lower Cretaceous) strata in Lower Saxony (Germany). (In: The Barremian-Aptian Boundary. A Study of profiles from the boreal Cretaceous.E.Kemper, editor) |
1995 |
| details |
Barremian |
Middle Aptian |
W.Germany(Niedersachsen) |
Heilmann-Clausen,C. et al. Barremian-Aptian dinoflagellates and calcareous nannofossils in the Ahlum 1 Borehole and the Otto Gott Claypit, Sarstedt, Lower Saxony Basin, Germany. (In: The Barremian-Aptian Boundary. A Study of profiles from the Boreal Cretaceous.E.Kemper, editor) |
1995 |
| details |
Barremian |
|
Barents Sea |
Smelror,M. et al. The Klippfisk Formation: A new lithostratigraphic unit of Lower Cretaceous platform carbonates on the western Barents Shelf. |
1998 |
| details |
Aptian |
|
England(Isle of Wight) |
Duxbury,S. A study of dinoflagellate cysts and acritarchs from the Lower Greensand (Aptian to Lower Albian) of the Isle of Wight,
southern England. |
1983 |