Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium corollatum | Ordovician | Ordovician |
|
| Hystrichosphaeridium costatum | Bathonian | Middle Albian |
|
| Hystrichosphaeridium crassipes | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeridium cribrotubiferum | Early Oxfordian | Early Oxfordian |
|
| Hystrichosphaeridium cristatum | Tremadocian | Tremadocian |
|
| Hystrichosphaeridium cruciatum | Turonian | Maastrichtian |
|
| Hystrichosphaeridium cylindratum | Barremian | Rupelian |
|
| Hystrichosphaeridium danicum | Danian | Danian |
|
| Hystrichosphaeridium deanei | Albian | Eocene |
|
| Hystrichosphaeridium deflandrei | Precambriam | Recent |
|
| Hystrichosphaeridium denticulatum | Cretaceous | Cretaceous |
|
| Hystrichosphaeridium dichotomospinum | Late Devonian | Late Devonian |
|
| Hystrichosphaeridium dictyophorum | Early Ordovician | Early Ordovician |
|
| Hystrichosphaeridium dictyostilum | Eocene | Oligocene |
|
| Hystrichosphaeridium dictyum | Bartonian | Bartonian |
|
| Hystrichosphaeridium differtum | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium difficile | Cretaceous | Oligocene |
|