| details |
Early Oligocene |
|
Poland |
Eisenack,A. Microfossils from the Lower Oligocene phosphorites of Samland and concerning the uniformity of Hystrichospheres. |
1954 |
| details |
Tortonian |
|
Romania |
Dumitrica,P. Consideration on the micropaleontology of the Tortonian Clay horizon of the Carpathian Regions |
1968 |
| details |
Early Miocene |
Middle Miocene |
Italy |
Martini,E. Silicoflagellate zones in the Late Oligocene and Early Miocene of Europe. |
1972 |
| details |
Early Miocene |
Middle Miocene |
Austria |
Martini,E. Silicoflagellate zones in the Late Oligocene and Early Miocene of Europe. |
1972 |
| details |
Maastrichtian |
|
California |
Cornell,W.C. Maastrichtian silicoflagellates of the Great Valley, California. |
1974 |
| details |
Maastrichtian |
|
California |
Cornell,W.C. Maastrichtian silicoflagellates of the Great Valley, California. |
1974 |
| details |
Maastrichtian |
Maastrichtian |
California |
Cornell,W.C. Maastrichtian silicoflagellates of the Great Valley, California. |
1974 |