Genus Hystrichosphaeropsis
- Species total:
- 30
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeropsis pontiana | Middle Oligocene | Early Pliocene |
|
| Hystrichosphaeropsis | Mesozoic | Cenozoic |
|
| Hystrichosphaeropsis obscura | Early Ypresian | Recent |
|
| Hystrichosphaeropsis ovatum | Nd | Nd |
|
| Hystrichosphaeropsis nuda | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeropsis sp.B | Middle Eocene | Middle Eocene |
|
| Hystrichosphaeropsis downiei | Kimmeridgian | Kimmeridgian |
|
| Hystrichosphaeropsis jubata | Maastrichtian | Maastrichtian |
|
| Hystrichosphaeropsis somphosa | Late Miocene | Late Miocene |
|
| Hystrichosphaeropsis tubulata | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeropsis minimum | Badenian | Badenian |
|
| Hystrichosphaeropsis sp.A Pros.,1997 | Middle Rupelian | Middle Rupelian |
|
| Hystrichosphaeropsis sp.1 | Eocene | Eocene |
|