Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Oligosphaeridium paradoxum | Late Eocene | Late Eocene |
|
| Oligosphaeridium spinigerum | Neocomian | Neocomian |
|
| Oligosphaeridium trabeculosum | Middle Cenomanian | Middle Cenomanian |
|
| Oligosphaeridium breviconispinum | Early Cenomanian | Early Cenomanian |
|
| Oligosphaeridium levimarginatum | Early Maastrichtian | Early Maastrichtian |
|
| Oligosphaeridium sp.GE McIn.& Brid.,1980 | Early Barremian | Early Barremian |
|
| Oligosphaeridium coelenteratum | Early Cretaceous | Early Cretaceous |
|
| Oligosphaeridium umbratus | Thanetian | Thanetian |
|
| Oligosphaeridium byersense | Cretaceous | Cretaceous |
|
| Oligosphaeridium sp.B | Late Aptian | Late Aptian |
|
| Oligosphaeridium centrocarpum | Paleocene | Paleocene |
|
| Oligosphaeridium longicercale | Cenomanian | Cenomanian |
|
| Oligosphaeridium sp.4 | Nd | Nd |
|
| Oligosphaeridium amplexum | Early Hauterivian | Early Hauterivian |
|
| Oligosphaeridium sp.A Duan.,1996 | Valanginian | Valanginian |
|
| Oligosphaeridium sp. Sun,1994 | Eocene | Eocene |
|
| Oligosphaeridium pseudoabaculum | Early Barremian | Early Barremian |
|