| Elrhazosaurus Temporal range: Early Cretaceous, ~
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| Femur of Elrhazosaurus nigeriensis. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Ornithopoda |
| Family: | †Dryosauridae |
| Genus: | †Elrhazosaurus Galton, 2009 |
| Species: | †E. nigeriensis
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| Binomial name | |
| †Elrhazosaurus nigeriensis Galton, 2009 (Galton and Taquet, 1982)
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| Synonyms | |
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Elrhazosaurus (meaning "Elrhaz lizard") is a genus of basal iguanodontian dinosaur, known from isolated bones found in Early Cretaceous rocks of Niger. These bones were initially thought to belong to a species of the related dryosaurid Valdosaurus, but have since been reclassified.