| details |
Middle Barremian |
Early Aptian |
North Sea |
Heilmann-Clausen,C. Lower Cretaceous dinoflagellate biostratigraphy in the Danish Central Trough |
1987 |
| details |
Kimmeridgian |
Portlandian |
France(Pas-de-Calais) |
Dмrr,G. Palynostratigraphy of the Kimmeridgian and Tithonian of Southern Germany and correlation with Boreal flora |
1988 |
| original |
Late Aptian |
|
W.Germany(Schleswig) |
Eisenack,A. Microplankton from the Aptian of North Germany, with some remarks on the fossil dinoflagellates. |
1958 |
| original |
Late Aptian |
|
W.Germany(Schleswig) |
Eisenack,A. Microplankton from the north German Aptian. |
1958 |