Genus Prediscosphaera
- Species total:
- 3
- Age range:
- 100 - 82 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Prediscosphaera columnatus | Cenomanian | Early Turonian |
|
| Prediscosphaera cretacea | Cenomanian | Coniacian |
|
| Prediscosphaera spinosa | Cenomanian | Coniacian |
|