Genus Trivalvadinium
- Species total:
- 4
- Age range:
- 90.33 - 40.25 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Trivalvadinium | Early Eocene | Middle Eocene |
|
| Trivalvadinium formosum | Paleocene | Middle Eocene |
|
| Trivalvadinium plenum | Late Cretaceous | Middle Eocene |
|
| Trivalvadinium sp.2 | Zanclean | Zanclean |
|