| details |
Late Oligocene |
Middle Miocene |
W.Germany(Niedersachsen) |
Gerlach,E. Oligocene and Miocene microfossils of Northwestern Germany, with special consideration of Hystrichospheres and dinoflagellate. |
1961 |
| details |
Wealden |
|
France(Pas-de-Calais) |
Delcourt,A.F. et al. Spores and pollen grains, Hystrichoshperes and Peridinians in the Wealdian of Feron-Glageon. |
1959 |
| details |
Wealden |
|
France(Pas-de-Calais) |
Delcourt,A.F. et al. A curious association of microfossils from the Wealdian of Feron-Glageon, France. |
1959 |
| details |
Hauterivian |
|
W.Germany(Niedersachsen) |
Gocht,H. Microplankton from the northwest Germany Neocomian (Part II). |
1959 |
| details |
Wealden |
|
Belgium |
Delcourt,A.F. et al. Some microfossils from the Wealdian of Feron-Glageon. |
1957 |
| details |
Senonian |
Eocene |
Germany |
Matthes,H.W. Introduction to micropaleontology |
1956 |
| details |
Danian |
|
W.Germany(Schleswig) |
Wetzel,W. The Danian sediments of Katharinenhof, (Fehmarn), and their plankton content. |
1955 |
| details |
Senonian |
|
France |
Deflandre-Rigaud,M. Microfossils of the Senonian Chert of Treport (Seine-Maritime). |
1955 |
| details |
Cretaceous |
|
France(Cher) |
Valensi,L. Micropaleontologic study of flint from the Magdelenian of Saint Amand, (Cher). |
1955 |
| details |
Danian |
|
Europe |
Wetzel,W. Contribution to the knowledge of Danian marine plankton. |
1952 |
| details |
Senonian |
|
France(Paris Basin) |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Oligocene |
|
Germany |
Gocht,H. Hystrichospheres and other microorganisms in Oligocene deposits of North and Central Germany. |
1952 |
| details |
Ypresian |
|
Belgium |
Pastiels,A. Contribution to the study of microfossils of the Belgian Eocene. |
1948 |
| details |
Maastrichtian |
|
Netherlands |
de Wit,R. Hystrichosphaeridae of the Limburg Flint. |
1943 |
| details |
Maastrichtian |
|
Belgium |
Conrad,W. Notes on protistologiques, XIX. Some microfossils of the Cretaceous Flint. |
1941 |
| details |
Senonian |
|
France(Normandie) |
Deflandre,G. et al. Preliminary note on the microfossils from the Cretaceous flint of Cambresis. |
1939 |
| details |
Senonian |
|
France(Seine) |
Mercier,J. Upper Cretaceous microplankton from Western Basin of Paris.Preliminary Note. |
1938 |