Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium type 4 | Oligocene | Oligocene |
|
| Hystrichosphaeridium sp.4 Math.,1964 | Eocene | Eocene |
|
| Hystrichosphaeridium spiciferum | Middle Devonian | Middle Devonian |
|
| Hystrichosphaeridium sp.8 | Devonian | Devonian |
|
| Hystrichosphaeridium bulbosum | Cretaceous | Cretaceous |
|
| Hystrichosphaeridium claviculorum | Early Oxfordian | Early Oxfordian |
|
| Hystrichosphaeridium spicatum | Late Devonian | Late Devonian |
|
| Hystrichosphaeridium spinipansatum | Early Cretaceous | Early Cretaceous |
|
| Hystrichosphaeridium follium | Albian | Albian |
|
| Hystrichosphaeridium dignum | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium venustum | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium sp.10 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium seminudum | Danian | Danian |
|
| Hystrichosphaeridium marsupium | Albian | Albian |
|
| Hystrichosphaeridium sp.38 | Pannonian | Pannonian |
|
| Hystrichosphaeridium collum | Albian | Albian |
|
| Hystrichosphaeridium kiowanum | Albian | Albian |
|