Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium sp.3 | Precambriam | Recent |
|
| Hystrichosphaeridium sp.27a | Valanginian | Hauterivian |
|
| Hystrichosphaeridium sp.27 | Hauterivian | Hauterivian |
|
| Hystrichosphaeridium sp.22 | Cenomanian | Cenomanian |
|
| Hystrichosphaeridium sp.2 Venk.& Rawa.,1972 | Paleocene | Eocene |
|
| Hystrichosphaeridium sp.2 Stre.et al,1977 | Late Campanian | Early Maastrichtian |
|
| Hystrichosphaeridium sp.2 McIn.,1974 | Albian | Albian |
|
| Hystrichosphaeridium sp.2 Math.,1964 | Eocene | Eocene |
|
| Hystrichosphaeridium sp.2 | Precambriam | Recent |
|
| Hystrichosphaeridium sp.15 | Neocomian | Neocomian |
|
| Hystrichosphaeridium sp.13 | Miocene | Miocene |
|
| Hystrichosphaeridium sp.12 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium sp.11 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium sp.10 | Late Miocene | Late Miocene |
|
| Hystrichosphaeridium sp.1 Zait.& Cros.,1970 | Early Santonian | Early Santonian |
|
| Hystrichosphaeridium sp.1 Venk.& Rawa.,1972 | Paleocene | Eocene |
|
| Hystrichosphaeridium sp.1 Stre.et al,1977 | Late Campanian | Early Maastrichtian |
|