Genus Hystrichosphaera
- Species total:
- 88
- Age range:
- 1600 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaera ceratioides | Cretaceous | Campanian |
|
| Hystrichosphaera clavigera | Cretaceous | Cretaceous |
|
| Hystrichosphaera ovum | Cretaceous | Middle Miocene |
|
| Hystrichosphaera intermedia | Cretaceous | Danian |
|
| Hystrichosphaera wetzelii | Early Cretaceous | Maastrichtian |
|
| Hystrichosphaera speciosa | Early Cretaceous | Miocene |
|
| Hystrichosphaera pseudofurcata | Neocomian | Oligocene |
|
| Hystrichosphaera tenuicapillata | Cretaceous | Danian |
|
| Hystrichosphaera cornigera | Cretaceous | Danian |
|
| Hystrichosphaera hyperacantha | Early Cretaceous | Late Miocene |
|
| Hystrichosphaera spinimarginata | Late Berriasian | Valanginian |
|
| Hystrichosphaera duplifurcata | Late Berriasian | Valanginian |
|
| Hystrichosphaera dentata | Hauterivian | Middle Barremian |
|
| Hystrichosphaera sp. Dave.et al,1966 | Early Barremian | Early Barremian |
|
| Hystrichosphaera pterota | Aptian | Early Maastrichtian |
|
| Hystrichosphaera sp.K | Late Aptian | Late Aptian |
|
| Hystrichosphaera sp.A | Albian | Early Turonian |
|