Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium molodovense | Late Ordovician | Late Ordovician |
|
| Hystrichosphaeridium borracherosum | Late Ordovician | Late Ordovician |
|
| Hystrichosphaeridium podolicum | Late Ordovician | Late Ordovician |
|
| Hystrichosphaeridium castanea | Late Ordovician | Late Ordovician |
|
| Hystrichosphaeridium malum | Late Ordovician | Late Ordovician |
|
| Hystrichosphaeridium trisulcum | Late Ordovician | Late Ordovician |
|
| Hystrichosphaeridium monacantha | Caradocian | Caradocian |
|
| Hystrichosphaeridium alloiteauii | Caradocian | Caradocian |
|
| Hystrichosphaeridium williereae | Ashgillian | Early Taranakian |
|
| Hystrichosphaeridium oligofurcatum | Silurian | Late Llandoverian |
|
| Hystrichosphaeridium geometricum | Silurian | Ypresian |
|
| Hystrichosphaeridium semanticum | Silurian | Silurian |
|
| Hystrichosphaeridium sp. Eise.,1938 | Silurian | Silurian |
|
| Hystrichosphaeridium erraticum | Silurian | Late Ludlovian |
|
| Hystrichosphaeridium patriarchum | Silurian | Silurian |
|
| Hystrichosphaeridium intermedium | Silurian | Middle Eocene |
|
| Hystrichosphaeridium bohemicum | Silurian | Silurian |
|