Genus Impletosphaeridium
- Species total:
- 102
- Age range:
- 500 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Impletosphaeridium commixtum | Late Eocene | Middle Oligocene |
|
| Impletosphaeridium huanghuaense | Eocene | Middle Oligocene |
|
| Impletosphaeridium cracens | Late Thanetian | Middle Oligocene |
|
| Impletosphaeridium minus | Early Oligocene | Middle Oligocene |
|
| Impletosphaeridium oblongatum | Early Thanetian | Middle Oligocene |
|
| Impletosphaeridium conicosum | Early Oligocene | Middle Oligocene |
|
| Impletosphaeridium tianjinense | Early Oligocene | Middle Oligocene |
|
| Impletosphaeridium bifurcatum | Early Oligocene | Middle Oligocene |
|
| Impletosphaeridium liaoningense | Early Oligocene | Middle Oligocene |
|
| Impletosphaeridium sp. Jux,1971 | Middle Oligocene | Late Oligocene |
|
| Impletosphaeridium pycnospinosum | Middle Oligocene | Late Oligocene |
|
| Impletosphaeridium bahiaense | Eocene | Oligocene |
|
| Impletosphaeridium multispinosum | Early Tertiary | Early Miocene |
|
| Impletosphaeridium sp.2 Bene.,1972 | Middle Oligocene | Early Miocene |
|
| Impletosphaeridium sp.3 Bene.,1972 | Middle Oligocene | Early Miocene |
|
| Impletosphaeridium scalenofurcatum | Late Paleocene | Middle Miocene |
|
| Impletosphaeridium rugosum | Paleocene | Middle Miocene |
|