Genus Hystrichosphaera
- Species total:
- 88
- Age range:
- 1600 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaera asteroidea | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaera assamica | Eocene | Eocene |
|
| Hystrichosphaera | Givetian | Recent |
|