Ahvaytum
| Ahvaytum Temporal range: Late Triassic (Carnian), ~ | |
|---|---|
| Skeletal reconstruction | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha (?) |
| Genus: | †Ahvaytum Lovelace et al., 2025 |
| Species: | †A. bahndooiveche |
| Binomial name | |
| †Ahvaytum bahndooiveche Lovelace et al., 2025 | |
Ahvaytum (/ɑːˈveɪtəm/ ah-VAY-tum; lit. 'long ago') is an extinct genus of probable basal sauropodomorph saurischian dinosaurs from the Late Triassic Popo Agie Formation of Wyoming, United States. The genus contains a single species, A. bahndooiveche, known from fragmentary hindlimb bones. Ahvaytum represents the oldest known named dinosaur of the ancient Laurasian landmass.