Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium sp.G | Late Aptian | Late Aptian |
|
| Hystrichosphaeridium sp.E | Early Eocene | Early Eocene |
|
| Hystrichosphaeridium sp. Down.,1958 | Tremadocian | Tremadocian |
|
| Hystrichosphaeridium corollatum | Ordovician | Ordovician |
|
| Hystrichosphaeridium integrum | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium notoense | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium sylhetii | Tertiary | Tertiary |
|
| Hystrichosphaeridium gracilis | Late Eocene | Late Eocene |
|
| Hystrichosphaeridium tenuicapillatum | Senonian | Senonian |
|
| Hystrichosphaeridium clavatum | Cambrian | Cambrian |
|
| Hystrichosphaeridium sp. Eise.,1938 | Silurian | Silurian |
|
| Hystrichosphaeridium ichikawaii | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium majus | Cretaceous | Cretaceous |
|
| Hystrichosphaeridium rigens | Early Ordovician | Early Ordovician |
|
| Hystrichosphaeridium huecospinosum | Devonian | Devonian |
|
| Hystrichosphaeridium ocuminatum | Llandeilian | Llandeilian |
|
| Hystrichosphaeridium sp. Olar.,1971 | Early Tertiary | Early Tertiary |
|