| details |
Middle Oligocene |
Late Oligocene |
Germany |
Eisenack,A. Catalog of fossil dinoflagellates, hystrichospheres and microfossils |
1964 |
| details |
Middle Oligocene |
Late Oligocene |
Germany |
Eisenack,A. Catalog of fossil dinoflagellates, hystrichospheres and microfossils |
1964 |
| details |
Late Oligocene |
|
W.Germany(Hesse) |
Brosius,M. Plankton of the Kassel, North Hessen, marine Sand (Upper Oligocene). |
1963 |
| details |
Middle Oligocene |
Late Oligocene |
E.Germany |
Alberti,G. Towards the knowledge of Mesozoic and Early Tertiary dinoflagellates and Hystrichospheres from North and Central Germany, as well as some other European localities. |
1961 |
| details |
Oligocene |
Miocene |
W.Germany(Niedersachsen) |
Gerlach,E. Oligocene and Miocene microfossils of Northwestern Germany, with special consideration of Hystrichospheres and dinoflagellate. |
1961 |
| original |
Middle Oligocene |
Late Oligocene |
W.Germany(Niedersachsen) |
Gerlach,E. Oligocene and Miocene microfossils of Northwestern Germany, with special consideration of Hystrichospheres and dinoflagellate. |
1961 |
| details |
Middle Oligocene |
|
W.Germany |
Maier,D. Investigation of plankton in Tertiary and Quaternary marine sediments. |
1959 |
| original |
Middle Oligocene |
|
Germany(Rhineland) |
Weiler,H. A find of dinoflagellates, coccoliths and hystrichospheres in the Tertiary of the Rhine Basin. |
1956 |