Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Oligosphaeridium xinjiangense | Paleocene | Middle Eocene |
|
| Oligosphaeridium verrucosum | Hauterivian | Middle Albian |
|
| Oligosphaeridium vasiformum | Early Cretaceous | Priabonian |
|
| Oligosphaeridium umbratus | Thanetian | Thanetian |
|
| Oligosphaeridium umbraculum | Early Hauterivian | Early Hauterivian |
|
| Oligosphaeridium tubulatum | Oligocene | Oligocene |
|
| Oligosphaeridium trabeculosum | Middle Cenomanian | Middle Cenomanian |
|
| Oligosphaeridium totum | Cretaceous | Santonian |
|
| Oligosphaeridium tenuiprocessum | Vraconian | Early Cenomanian |
|
| Oligosphaeridium swanense | Oxfordian | Kimmeridgian |
|
| Oligosphaeridium suibinense | Valanginian | Hauterivian |
|
| Oligosphaeridium spinigerum | Neocomian | Neocomian |
|
| Oligosphaeridium specialis | Middle Eocene | Late Eocene |
|
| Oligosphaeridium sp.II | Barremian | Barremian |
|
| Oligosphaeridium sp.I | Late Hauterivian | Late Hauterivian |
|
| Oligosphaeridium sp.GE McIn.& Brid.,1980 | Early Barremian | Early Barremian |
|
| Oligosphaeridium sp.GE | Late Volgian | Early Hauterivian |
|