Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium form a | Early Cenomanian | Early Cenomanian |
|
| Hystrichosphaeridium follium | Albian | Albian |
|
| Hystrichosphaeridium fluctuans | Silurian | Silurian |
|
| Hystrichosphaeridium flosculus | Cretaceous | Cretaceous |
|
| Hystrichosphaeridium floripes | Campanian | Middle Oligocene |
|
| Hystrichosphaeridium fimbriatum | Volgian | Aptian |
|
| Hystrichosphaeridium ferox | Early Ordovician | Oligocene |
|
| Hystrichosphaeridium fabium | Albian | Albian |
|
| Hystrichosphaeridium exoticum | Famennian | Famennian |
|
| Hystrichosphaeridium espiritosantense | Mesozoic | Mesozoic |
|
| Hystrichosphaeridium erraticum | Silurian | Late Ludlovian |
|
| Hystrichosphaeridium erectum | Albian | Paleocene |
|
| Hystrichosphaeridium equispinosum | Early Permian | Early Permian |
|
| Hystrichosphaeridium eoplanctonicum | Llandoverian | Llandoverian |
|
| Hystrichosphaeridium eoinodes | Oxfordian | Early Aptian |
|
| Hystrichosphaeridium entomium | Albian | Albian |
|
| Hystrichosphaeridium ellipticum | Middle Eocene | Middle Eocene |
|