Genus Hystrichosphaera
- Species total:
- 88
- Age range:
- 1600 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaera xanthiopyxides | Senonian | Danian |
|
| Hystrichosphaera tertiaria | Early Santonian | Nd |
|
| Hystrichosphaera bulbosa | Late Senonian | Danian |
|
| Hystrichosphaera hamatae | Late Senonian | Danian |
|
| Hystrichosphaera granulata | Campanian | Danian |
|
| Hystrichosphaera membranacea | Campanian | Recent |
|
| Hystrichosphaera supparus | Maastrichtian | Danian |
|
| Hystrichosphaera cristata | Maastrichtian | Maastrichtian |
|
| Hystrichosphaera bulloidea | Haumurian | Miocene |
|
| Hystrichosphaera sp.2 Zait.,1967 | Maastrichtian | Late Maastrichtian |
|
| Hystrichosphaera oligacanthum | Danian | Danian |
|
| Hystrichosphaera sp.5 | Paleocene | Paleocene |
|
| Hystrichosphaera heterostyla | Danian | Danian |
|
| Hystrichosphaera incerta | Early Tertiary | Early Tertiary |
|
| Hystrichosphaera sp.B Drug.,1967 | Danian | Danian |
|
| Hystrichosphaera sp.A Drug.,1967 | Danian | Danian |
|
| Hystrichosphaera assamica | Eocene | Eocene |
|