Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium rjabininii | Ordovician | Ordovician |
|
| Hystrichosphaeridium robustum | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium rotundatum | Middle Cambrian | Middle Cambrian |
|
| Hystrichosphaeridium rubinum | Neocomian | Aptian |
|
| Hystrichosphaeridium saalfeldiensis | Nd | Nd |
|
| Hystrichosphaeridium sahii | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeridium salpingophorum | Jurassic | Neogene |
|
| Hystrichosphaeridium salvadorense | Senonian | Senonian |
|
| Hystrichosphaeridium saturnium | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium saxoniensis | Cenomanian | Turonian |
|
| Hystrichosphaeridium scabridum | Llandeilian | Llandeilian |
|
| Hystrichosphaeridium scaffoldii | Tertiary | Oligocene |
|
| Hystrichosphaeridium scapigerum | Early Ordovician | Early Ordovician |
|
| Hystrichosphaeridium scissospinum | Early Santonian | Early Santonian |
|
| Hystrichosphaeridium scoriaceum | Tithonian | Hauterivian |
|
| Hystrichosphaeridium sectum | Llandeilian | Llandeilian |
|
| Hystrichosphaeridium selheti | Nd | Nd |
|