| Tichosteus Temporal range: Late Jurassic,
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|---|---|
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| Vertebra from the holotype of T. lucasanus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Ornithopoda |
| Family: | †incertae sedis |
| Genus: | †Tichosteus Cope, 1877 |
| Type species | |
| †Tichosteus lucasanus Cope, 1877 (nomen dubium)
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| Other species | |
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Tichosteus (meaning "walled bone") is a genus of herbivorous dinosaur from the Late Jurassic. It is known only from vertebrae recovered from Kimmeridgian rocks in the Morrison Formation, Colorado.