| original |
Cretaceous |
|
Baltic |
Wetzel,O. New microfossils from Baltic Cretaceous flintstones. |
1961 |
| details |
Cretaceous |
|
Baltic |
Wetzel,O. New microfossils from Baltic Cretaceous flintstones. |
1961 |
| details |
Early Maastrichtian |
|
Netherlands |
Robaszynski,F. et al. The Campanian-Maestrichtian boundary in the chalky facies close to the type-Maestrichtian area. |
1985 |
| details |
Miocene |
|
Germany |
Benedek,P.N. Results of phytoplankton investigations of the Northwest German Tertiary. (In: Northwest Germany during the Tertiary. H.Tobien, editor) |
1986 |