Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium erectum | Albian | Paleocene |
|
| Hystrichosphaeridium sp.D | Albian | Middle Eocene |
|
| Hystrichosphaeridium follium | Albian | Albian |
|
| Hystrichosphaeridium striatoconum | Albian | Campanian |
|
| Hystrichosphaeridium marsupium | Albian | Albian |
|
| Hystrichosphaeridium kiowanum | Albian | Albian |
|
| Hystrichosphaeridium collum | Albian | Albian |
|
| Hystrichosphaeridium paracostatum | Albian | Campanian |
|
| Hystrichosphaeridium readei | Albian | Senonian |
|
| Hystrichosphaeridium dowlingii | Albian | Maestrichtian |
|
| Hystrichosphaeridium triradicosum | Albian | Albian |
|
| Hystrichosphaeridium protellipticum | Albian | Albian |
|
| Hystrichosphaeridium entomium | Albian | Albian |
|
| Hystrichosphaeridium alagoense | Late Albian | Miocene |
|
| Hystrichosphaeridium type 411 | Late Albian | Early Cenomanian |
|
| Hystrichosphaeridium type 459 | Late Albian | Early Cenomanian |
|
| Hystrichosphaeridium multicornutum | Cenomanian | Cenomanian |
|