Unguinychus Temporal range: Late Triassic,
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Clade: | †Drepanosauromorpha |
Family: | †Drepanosauridae |
Genus: | †Unguinychus Pugh et al., 2024 |
Species: | †U. onyx
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Binomial name | |
†Unguinychus onyx Pugh et al., 2024
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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.[1] 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.[2]