| Ignotosaurus Temporal range: Carnian
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| The holotype ilium, seen in dorsal and lateral view | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia (?) |
| Family: | †Silesauridae |
| Genus: | †Ignotosaurus Martínez et al. 2013 |
| Type species | |
| †Ignotosaurus fragilis Martínez et al. 2013
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Ignotosaurus is an extinct genus of silesaurid dinosauriform known from the Late Triassic (Carnian) Cancha de Bochas Member of the Ischigualasto Formation in the Ischigualasto-Villa Unión Basin in northwestern Argentina.[1] It was therefore contemporary with early dinosaurs such as Herrerasaurus, and lived in the same place.
- ^ Martínez et al., 2013