Unguinychus
| Unguinychus Temporal range: Late Triassic, | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | †Drepanosauromorpha |
| Family: | †Drepanosauridae |
| Genus: | †Unguinychus Pugh et al., 2024 |
| Species: | †U. onyx |
| Binomial name | |
| †Unguinychus onyx Pugh et al., 2024 | |
Unguinychus (meaning "claw claw") is an extinct genus of drepanosaurid reptiles from the Late Triassic Garita Creek Formation of New Mexico, United States. The genus contains a single species, U. onyx, known from several partial claws. In contrast to some of its relatives that may have been arboreal, Unguinychus may have been a more fossorial species. Based on the morphology of the claws, Unguinychus appears to be most similar to Skybalonyx, another possibly fossorial drepanosaur from the Chinle Formation of Arizona.