Abyssomedon
| Abyssomedon Temporal range: Early Permian, | |
|---|---|
| Illustration of the holotype fossil | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | †Parareptilia |
| Order: | †Procolophonomorpha |
| Family: | †Nyctiphruretidae |
| Genus: | †Abyssomedon MacDougall & Reisz, 2014 |
| Type species | |
| †Abyssomedon williamsi MacDougall & Reisz, 2014 | |
Abyssomedon (meaning "Guardian of the Abyss") is an extinct genus of a nyctiphruretid parareptile known from Early Permian (Artinskian age) fissure fills at Richards Spur in Comanche County, Oklahoma, south-central United States. It contains a single species, Abyssomedon williamsi, which represents oldest known nyctiphruretid species and the first to be discovered in North America.