Genus Helicopontosphaera
- Species total:
- 6
- Age range:
- 54.5 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Helicopontosphaera kamptneri | Miocene | Quaternary |
|
| Helicopontosphaera obliqua | Chattian | Chattian |
|
| Helicopontosphaera perch-nielseniae | Chattian | Chattian |
|
| Helicopontosphaera recta | Rupelian | Chattian |
|
| Helicopontosphaera reticulata | Eocene | Eocene |
|
| Helicopontosphaera sp | Miocene | Late Neogene |
|