| Xiaosaurus Temporal range: Middle Jurassic,
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Genus: | †Xiaosaurus Dong & Tang, 1983 |
| Species: | †X. dashanpensis
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| Binomial name | |
| †Xiaosaurus dashanpensis Dong & Tang, 1983
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Xiaosaurus ("dawn lizard", /ʃaʊˈsɔːrəs/), is a genus of small herbivorous dinosaur from the middle Jurassic, approximately 170.3 to 163.5 mya. Xiaosaurus lived in what is now the Sichuan Basin of China.