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| Abydosaurus Temporal range: Early Cretaceous,
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_(Cedar_Mountain_Formation,_Lower_Cretaceous;_Dinosaur_National_Monument,_Utah,_USA)_2_(48694534456).jpg)
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| Holotype skull | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Clade: | †Sauropoda |
| Clade: | †Macronaria |
| Family: | †Brachiosauridae |
| Genus: | †Abydosaurus Chure et al., 2010 |
| Type species | |
| †Abydosaurus mcintoshi Chure et al., 2010
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Abydosaurus (meaning "Abydos lizard") is a genus of brachiosaurid sauropod dinosaur known from skull and postcranial material found in upper Lower Cretaceous rocks of northeastern Utah, United States.