Genus Rugasphaera
- Species total:
- 11
- Age range:
- 540 - 1.8 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Rugasphaera asperata | Early Tertiary | Late Eocene |
|
| Rugasphaera sp.2 | Late Eocene | Early Oligocene |
|
| Rugasphaera corrugis | Early Tertiary | Early Miocene |
|
| Rugasphaera operculata | Early Eocene | Early Miocene |
|
| Rugasphaera micirugis | Early Eocene | Early Miocene |
|
| Rugasphaera minor | Middle Eocene | Early Miocene |
|
| Rugasphaera sp | Late Triassic | Middle Miocene |
|
| Rugasphaera maxima | Late Miocene | Late Neogene |
|
| Rugasphaera | Middle Cambrian | Middle Cambrian |
|
| Rugasphaera terranovana | Middle Cambrian | Middle Cambrian |
|
| Rugasphaera sp.1 | Late Oligocene | Late Oligocene |
|