| details |
Early Hauterivian |
|
North Sea |
Wilkinson,I.P. et al. Appendix: Cretaceous biostratigraphic biomarkers. (In: Cretaceous of the Central northern North Sea. H.Johnson and G.K.Lott, editors) |
1993 |
| details |
Valanginian |
|
England(Isle of Wight) |
Fensome,R.A. et al. The Eisenack Catalog of Fossil Dinoflagellates. New Series. Volume 2. |
1993 |
| details |
Valanginian |
|
USSR(Siberia) |
Shulgina,N.I. et al. Distribution of ammonites, foraminifera and dinoflagellate cysts in the Lower Cretaceous reference sections of Khatanga Basin, and Boreal Valanginian biogeography. |
1994 |
| details |
Late Aptian |
|
W.Germany(Niedersachsen) |
Below,R. et al. The distribution of palynophytoplancton in a dark / light / dark sequence of Uppermost Aptian, (Jacobi-Zone) from Vohrum, (Germany, Nierersachsen). New analytical method for the quantative analysis of marine flora. |
1994 |
| 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 |
Late Barremian |
|
Germany(Niedersachsen) |
Below,R. et al. The kerogen facies of Claystone-Foliated Claystone-Rhythmites of the Upper Barremian-Lower Aptian in the Lower Saxony Basin (Northern Germany) as an example of the Drillhole Hoheneggelsen Kb50 |
1997 |
| details |
Valanginian |
|
Norway |
Norborg,A.K. et al. Catalogue of Jurassic/Cretaceous fossils and sedimentary rocks from Andиya, northern Norway. Collections in the Paleontological Museum, Oslo, the Bergen Museum, the Tromsи Museum, and the Swedish Museum of Natural History, Stockholm. |
1997 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Middle Volgian |
Early Valanginian |
North Sea |
Dybkjaer,K. Palynological dating of the Mandal Formation (Uppermost Jurassic - Lowermost Cretaceous, Norwegian Central Graben) and correlation to organic-rich shales in the Danish sector. |
1998 |
| details |
Early Hauterivian |
|
England(Yorkshire) |
Davey,R.J. A summary of the palynology of the lower Hauterivian (Lower Cretaceous) from Speeton, east England. |
2001 |
| details |
Early Hauterivian |
|
North Sea |
Duxbury,S. A palynological zonation scheme for the Lower Cretaceous: United Kingdom Sector, Central North Sea. |
2001 |