Phlegethontiidae
| Phlegethontiidae | |
|---|---|
| Life restoration of Phlegethontia longissima | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Sarcopterygii | 
| Clade: | Tetrapodomorpha | 
| Order: | †Aistopoda | 
| Clade: | †Phlegethontioidea | 
| Family: | †Phlegethontiidae Cope, 1875 | 
Phlegethontiidae is a family of extinct aistopod tetrapodomorphs including the genera Phlegethontia and Sillerpeton.