Genus Sphaeria
- Species total:
- 6
- Age range:
- 141 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Sphaeria interpungens | Paleocene | Paleocene |
|
| Sphaeria cretacea | Cretaceous | Cretaceous |
|
| Sphaeria arctica | Miocene | Miocene |
|
| Sphaeria annulifera | Miocene | Miocene |
|
| Sphaeria aegeritoides | Miocene | Miocene |
|
| Sphaeria | Nd | Nd |
|