Genus Cyclusphaera
- Species total:
- 12
- Age range:
- 174 - 5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Cyclusphaera | Cretaceous | Oligocene |
|
| Cyclusphaera crassa | Cretaceous | Cretaceous |
|
| Cyclusphaera doubingeri | Late Eocene | Early Miocene |
|
| Cyclusphaera euribei | Cenomanian | Miocene |
|
| Cyclusphaera intacta | Neocomian | Senonian |
|
| Cyclusphaera patagonica | Cretaceous | Early Albian |
|
| Cyclusphaera psilata | Middle Jurassic | Early Turonian |
|
| Cyclusphaera radiata | Cretaceous | Cenomanian |
|
| Cyclusphaera sp | Early Cretaceous | Early Turonian |
|
| Cyclusphaera sp.A | Early Cretaceous | Early Albian |
|
| Cyclusphaera sp.A Volk.et al,1977 | Hauterivian | Barremian |
|
| Cyclusphaera sutschanica | Late Hauterivian | Barremian |
|