Genus Retisphaera
- Species total:
- 4
- Age range:
- 160 - 50.4 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Retisphaera | Late Jurassic | Albian |
|
| Retisphaera macroreticulata | Berriasian | Albian |
|
| Retisphaera microreticulata | Eocene | Early Cuisian |
|
| Retisphaera perforata | Eocene | Eocene |
|