Regnosaurus
| Regnosaurus | |
|---|---|
| Holotype jaw fragment | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Dinosauria | 
| Clade: | †Ornithischia | 
| Clade: | †Thyreophora | 
| Clade: | †Stegosauria | 
| Family: | †Huayangosauridae | 
| Genus: | †Regnosaurus Mantell, 1848 | 
| Species: | †R. northamptoni | 
| Binomial name | |
| †Regnosaurus northamptoni Mantell, 1848 | |
| Synonyms | |
| 
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Regnosaurus (meaning "Sussex lizard") is a genus of herbivorous stegosaurian dinosaur that lived during the Early Cretaceous Period in what is now England. It was one of the first stegosaurs discovered.