Genus Tretoprion
- Species total:
- 2
- Age range:
- 442.27 - 436.15 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tretoprion | Pirgu | Pirgu |
|
| Tretoprion astae | Vormsi | Pirgu |
|
Genus Tretoprion
- Species total:
- 2
- Age range:
- 442.27 - 436.15 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tretoprion | Pirgu | Pirgu |
|
| Tretoprion astae | Vormsi | Pirgu |
|