| details |
Late Bathonian |
Callovian |
France(Cher) |
Valensi,L. Micropaleontologic study of flint from the Magdelenian of Saint Amand, (Cher). |
1955 |
| details |
Eocene |
|
Australia |
Deflandre,G. et al. On the fossil microplankton preserved in several Australian sedimentary rocks running from the Lower Cretaceous to the Upper Miocene. |
1954 |
| details |
Oligocene |
|
Australia(Victoria) |
Cookson,I.C. Records of the occurrence of Botryococcus braunii, Pediastrum and the Hystrichosphaerideae in Cainozoic deposits of Australia. |
1953 |
| details |
Oxfordian |
|
France(Paris Basin) |
Deflandre,G. On a new Hystrichosphere from Cretaceous Flint and on the affinities of the genus Cannosphaeropsis |
1947 |
| details |
Jurassic |
|
Nd |
Deflandre,G. The problem of Hystrichospheres. |
1947 |