Genus Spinarcella
- Species total:
- 3
- Age range:
- 54.5 - 37.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Spinarcella batiformis | Middle Eocene | Late Eocene |
|
| Spinarcella crenella | Nd | Nd |
|
| Spinarcella guttiformis | Early Eocene | Middle Eocene |
|