Ptyonius
| Ptyonius | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Subclass: | Lepospondyli |
| Order: | Nectridea |
| Family: | Urocordylidae |
| Genus: | Ptyonius Cope, 1875 |
Ptyonius is an extinct genus of nectridean lepospondyl within the family Urocordylidae.
| Basal lepospondyls | 
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| Holospondyli |
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