Genus Tetraprionid
- Species total:
- 1
- Age range:
- 446.67 - 435 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tetraprionid | Middle Caradocian | Late Ashgillian |
|
Genus Tetraprionid
- Species total:
- 1
- Age range:
- 446.67 - 435 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tetraprionid | Middle Caradocian | Late Ashgillian |
|