Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium pilosum | Oxfordian | Oxfordian |
|
| Hystrichosphaeridium sp.B Drug.,1967 | Danian | Danian |
|
| Hystrichosphaeridium classicum | Devonian | Devonian |
|