Back Hesperonyx Czech Hesperonyx martinhotomasorum Spanish Hesperonyx Dutch Hesperonyx Ukrainian 西葡爪龙属 Chinese
| Hesperonyx Temporal range: Late Jurassic,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Ornithopoda |
| Clade: | †Dryomorpha |
| Genus: | †Hesperonyx Rotatori et al., 2024 |
| Species: | †H. martinhotomasorum
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| Binomial name | |
| †Hesperonyx martinhotomasorum Rotatori et al., 2024
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Hesperonyx (meaning "western claw") is an extinct genus of dryomorphan ornithopod dinosaur from the Late Jurassic Lourinhã Formation of Portugal. The genus contains a single species, Hesperonyx martinhotomasorum, known from bones of the fore- and hindlimbs.