Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium robustum | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium franconium | Late Lochkovian | Late Lochkovian |
|
| Hystrichosphaeridium viticulosum | Middle Ordovician | Middle Ordovician |
|
| Hystrichosphaeridium biforme | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeridium placacantha | Miocene | Miocene |
|
| Hystrichosphaeridium hippocrepicum | Late Precambrian | Late Precambrian |
|
| Hystrichosphaeridium aruncium | Albian | Albian |
|
| Hystrichosphaeridium sp.H | Late Aptian | Late Aptian |
|
| Hystrichosphaeridium reniforme | Albian | Albian |
|
| Hystrichosphaeridium spinoglobosum | Late Devonian | Late Devonian |
|
| Hystrichosphaeridium denticulatum | Cretaceous | Cretaceous |
|
| Hystrichosphaeridium microcystis | Ordovician | Ordovician |
|
| Hystrichosphaeridium sp.12 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium rjabininii | Ordovician | Ordovician |
|
| Hystrichosphaeridium simulatum | Middle Clintonian | Middle Clintonian |
|
| Hystrichosphaeridium fucosum | Wenlockian | Wenlockian |
|
| Hystrichosphaeridium echinosum | Late Devonian | Late Devonian |
|