Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Oligosphaeridium dictyophorum | Jurassic | Cretaceous |
|
| Oligosphaeridium diastema | Portlandian | Cenomanian |
|
| Oligosphaeridium dharmpurense | Late Paleocene | Eocene |
|
| Oligosphaeridium complex | Late Triassic | Pleistocene |
|
| Oligosphaeridium coelenteratum | Early Cretaceous | Early Cretaceous |
|
| Oligosphaeridium cephalum | Barremian | Paleocene |
|
| Oligosphaeridium centrocarpum | Paleocene | Paleocene |
|
| Oligosphaeridium byersense | Cretaceous | Cretaceous |
|
| Oligosphaeridium buciniferum | Late Albian | Maestrichtian |
|
| Oligosphaeridium breviconispinum | Early Cenomanian | Early Cenomanian |
|
| Oligosphaeridium asterigerum | Late Triassic | Santonian |
|
| Oligosphaeridium aphalum | Paleocene | Paleocene |
|
| Oligosphaeridium anthophorum | Jurassic | Pleistocene |
|
| Oligosphaeridium amplexum | Early Hauterivian | Early Hauterivian |
|
| Oligosphaeridium albertense | Kimmeridgian | Paleocene |
|
| Oligosphaeridium abbreviatum | Middle Eocene | Late Eocene |
|
| Oligosphaeridium abaculum | Berriasian | Albian |
|