Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Oligosphaeridium operculata | Late Hauterivian | Motuan |
|
| Oligosphaeridium quadrum | Late Hauterivian | Late Hauterivian |
|
| Oligosphaeridium intermedium | Late Hauterivian | Paleocene |
|
| Oligosphaeridium sp.I | Late Hauterivian | Late Hauterivian |
|
| Oligosphaeridium sp.A Will.& Brid.,1975 | Late Hauterivian | Santonian |
|
| Oligosphaeridium cephalum | Barremian | Paleocene |
|
| Oligosphaeridium djenn | Barremian | Cenomanian |
|
| Oligosphaeridium sp.II | Barremian | Barremian |
|
| Oligosphaeridium sp.2 | Early Barremian | Middle Oligocene |
|
| Oligosphaeridium sp.GE McIn.& Brid.,1980 | Early Barremian | Early Barremian |
|
| Oligosphaeridium pseudoabaculum | Early Barremian | Early Barremian |
|
| Oligosphaeridium sp.B Brid.,1971 | Aptian | Late Albian |
|
| Oligosphaeridium sp.A Brid.,1971 | Aptian | Late Albian |
|
| Oligosphaeridium indicum | Late Aptian | Early Cenomanian |
|
| Oligosphaeridium sp.1 Nиhr.,1993 | Late Aptian | Albian |
|
| Oligosphaeridium sp.B | Late Aptian | Late Aptian |
|
| Oligosphaeridium dictyotum | Late Aptian | Late Aptian |
|