| details |
Aptian |
|
Colombia |
Dueбas-Jimenez,H. Dinoflagellates, a new tool for the biostratigraphic control of sediments from the Middle and Upper Cretaceous. |
1990 |
| 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 |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Middle Albian |
Late Albian |
Venezuela |
Helenes,J. et al. Palynology and sequence stratigraphy of the Cretaceous of eastern Venezuela. |
1999 |