Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium sp. Levy & Harw.,2000 | Middle Eocene | Late Eocene |
|
| Hystrichosphaeridium breviatum | Late Thanetian | Late Eocene |
|
| Hystrichosphaeridium colligerum | Albian | Eocene |
|
| Hystrichosphaeridium deanei | Albian | Eocene |
|
| Hystrichosphaeridium multifurcatum | Late Bathonian | Late Eocene |
|
| Hystrichosphaeridium sp.1 Venk.& Rawa.,1972 | Paleocene | Eocene |
|
| Hystrichosphaeridium hirsutum | Ordovician | Eocene |
|
| Hystrichosphaeridium truswelliae | Late Paleocene | Late Eocene |
|
| Hystrichosphaeridium granulatum | Late Paleocene | Eocene |
|
| Hystrichosphaeridium sp.3 Venk.& Rawa.,1972 | Paleocene | Eocene |
|
| Hystrichosphaeridium brevispinosum | Late Cambrian | Late Eocene |
|
| Hystrichosphaeridium simplicispinum | Jurassic | Eocene |
|
| Hystrichosphaeridium grande | Paleocene | Eocene |
|
| Hystrichosphaeridium sp.4 Venk.& Rawa.,1972 | Paleocene | Eocene |
|
| Hystrichosphaeridium digitatum | Tremadocian | Late Eocene |
|
| Hystrichosphaeridium asterium | Late Paleocene | Eocene |
|
| Hystrichosphaeridium perifurcatum | Paleocene | Eocene |
|