Genus Microsphaera
- Species total:
- 3
- Age range:
- 1600 - 1.8 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Microsphaera | Paleogene | Neogene |
|
| Microsphaera foveolata | Late Proterozoic | Early Cambrian |
|
| Microsphaera sp. Mack.,1957 | Early Miocene | Early Miocene |
|