Genus Monoporosa
- Species total:
- 3
- Age range:
- 54.5 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Monoporosa | Nd | Nd |
|
| Monoporosa type 12 | Eocene | Eocene |
|
| Monoporosa type 13 | Eocene | Eocene |
|