| Byronosaurus Temporal range: Late Cretaceous,
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| Diagram showing known remains | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Family: | †Troodontidae |
| Subfamily: | †Troodontinae |
| Genus: | †Byronosaurus Norell, Makovicky & Clark, 2000 |
| Species: | †B. jaffei
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| Binomial name | |
| †Byronosaurus jaffei Norell, Makovicky & Clark, 2000
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Byronosaurus is a genus of troodontid dinosaur from the Late Cretaceous Period of Mongolia.