Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium paraense | Early Miocene | Early Miocene |
|
| Hystrichosphaeridium spectabile | Miocene | Late Neogene |
|
| Hystrichosphaeridium polyplasium | Miocene | Late Miocene |
|
| Hystrichosphaeridium placacantha | Miocene | Miocene |
|
| Hystrichosphaeridium globosus | Miocene | Miocene |
|
| Hystrichosphaeridium shimizui | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium ukaiense | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium rehdense | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium saturnium | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium notoense | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium ichikawaii | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium sp.11 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium sp.12 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium sp.10 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium type 1 | Tortonian | Tortonian |
|
| Hystrichosphaeridium type 2 | Tortonian | Tortonian |
|
| Hystrichosphaeridium type 3 | Tortonian | Tortonian |
|