Genus Polylophothylax
- Species total:
- 2
- Age range:
- 280 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polylophothylax crossii | Early Guadalupian | Early Guadalupian |
|
| Polylophothylax | Permian | Permian |
|
Genus Polylophothylax
- Species total:
- 2
- Age range:
- 280 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Polylophothylax crossii | Early Guadalupian | Early Guadalupian |
|
| Polylophothylax | Permian | Permian |
|