Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Oligosphaeridium jixiense | Late Valanginian | Early Hauterivian |
|
| Oligosphaeridium junctum | Hauterivian | Hauterivian |
|
| Oligosphaeridium levimarginatum | Early Maastrichtian | Early Maastrichtian |
|
| Oligosphaeridium longicercale | Cenomanian | Cenomanian |
|
| Oligosphaeridium macrotubulum | Oxfordian | Hauterivian |
|
| Oligosphaeridium membranaceum | Early Oligocene | Middle Oligocene |
|
| Oligosphaeridium minus | Eocene | Oligocene |
|
| Oligosphaeridium nannus | Valanginian | Albian |
|
| Oligosphaeridium operculata | Late Hauterivian | Motuan |
|
| Oligosphaeridium ovatum | Eocene | Oligocene |
|
| Oligosphaeridium paradoxum | Late Eocene | Late Eocene |
|
| Oligosphaeridium patulum | Jurassic | Middle Volgian |
|
| Oligosphaeridium perforatum | Late Hettangian | Late Santonian |
|
| Oligosphaeridium poculum | Kimmeridgian | Middle Lutetian |
|
| Oligosphaeridium porosum | Late Valanginian | Early Cenomanian |
|
| Oligosphaeridium prolixispinosum | Valanginian | Paleocene |
|
| Oligosphaeridium pseudoabaculum | Early Barremian | Early Barremian |
|