Genus Tril
- Species total:
- 3
- Age range:
- 65 - 49 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tril bac | Paleocene | Early Eocene |
|
| Tril ridge | Paleocene | Early Eocene |
|
| Tril smooth | Paleocene | Early Eocene |
|