Genus Hystrichosphaeridae
- Species total:
- 20
- Age range:
- 4100 - 0.01 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridae sp.3 | Tertiary | Tertiary |
|
| Hystrichosphaeridae sp.C | Oligocene | Oligocene |
|
| Hystrichosphaeridae sp.9 | Tertiary | Tertiary |
|