Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium cambayense | Eocene | Early Miocene |
|
| Hystrichosphaeridium sp.C Salu.et al,1969 | Early Eocene | Early Eocene |
|
| Hystrichosphaeridium perplexum | Eocene | Oligocene |
|
| Hystrichosphaeridium calospinum | Eocene | Oligocene |
|
| Hystrichosphaeridium senii | Eocene | Eocene |
|
| Hystrichosphaeridium sp.4 Math.,1964 | Eocene | Eocene |
|
| Hystrichosphaeridium breviatum | Late Thanetian | Late Eocene |
|
| Hystrichosphaeridium sp. Stre.et al,1977 | Landenian | Landenian |
|
| Hystrichosphaeridium sp. Schu.& Chat.,1976 | Early Landenian | Early Landenian |
|
| Hystrichosphaeridium latirictum | Thanetian | Miocene |
|
| Hystrichosphaeridium truswelliae | Late Paleocene | Late Eocene |
|
| Hystrichosphaeridium granulatum | Late Paleocene | Eocene |
|
| Hystrichosphaeridium spinulosum | Late Paleocene | Middle Eocene |
|
| Hystrichosphaeridium asterium | Late Paleocene | Eocene |
|
| Hystrichosphaeridium paucifurcatum | Early Tertiary | Early Tertiary |
|
| Hystrichosphaeridium sylhetii | Tertiary | Tertiary |
|
| Hystrichosphaeridium sp.2 Venk.& Rawa.,1972 | Paleocene | Eocene |
|