| Caseosaurus Temporal range: Late Triassic |
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Theropoda |
| Family: | †Herrerasauridae |
| Genus: | †Caseosaurus |
| Species: | †C. crosbyensis Hunt et al., 1998 |
Caseosaurus (meaning 'E. C. Case's lizard') is a genus of dinosaur from the Late Triassic of North America. The type species, Caseosaurus crosbyensis, was formally described by Hunt, Lucas, Heckert, Sullivan and Lockley in 1998. It was found in the Dockum Formation of Texas, in strata dating to the Late Triassic. It may, in fact, be the same dinosaur as Chindesaurus, another early dinosaur from the same period and geological region. It has tentatively been classified as a relative of Herrerasaurus.