Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Oligosphaeridium dividuum | Late Kimmeridgian | Santonian |
|
| Oligosphaeridium perforatum | Late Hettangian | Late Santonian |
|
| Oligosphaeridium totum | Cretaceous | Santonian |
|
| Oligosphaeridium sp.A Will.& Brid.,1975 | Late Hauterivian | Santonian |
|
| Oligosphaeridium asterigerum | Late Triassic | Santonian |
|
| Oligosphaeridium reticulatum | Valanginian | Early Campanian |
|
| Oligosphaeridium sp.A Sumn.,1992 | Campanian | Late Campanian |
|
| Oligosphaeridium dictyophorum | Jurassic | Cretaceous |
|
| Oligosphaeridium buciniferum | Late Albian | Maestrichtian |
|
| Oligosphaeridium intermedium | Late Hauterivian | Paleocene |
|
| Oligosphaeridium albertense | Kimmeridgian | Paleocene |
|
| Oligosphaeridium prolixispinosum | Valanginian | Paleocene |
|
| Oligosphaeridium cephalum | Barremian | Paleocene |
|
| Oligosphaeridium poculum | Kimmeridgian | Middle Lutetian |
|
| Oligosphaeridium sp. Mehr.& Sinh.,1981 | Late Cretaceous | Middle Eocene |
|
| Oligosphaeridium xinjiangense | Paleocene | Middle Eocene |
|
| Oligosphaeridium sp. Xu et al,1997 | Middle Eocene | Late Eocene |
|