Dryosaurus
Dryosaurus was a small plant-eating ornithopod dinosaur that lived in forests of western North America around 150 million years ago.[1][2]
| Dryosaurus Temporal range: Upper Jurassic 155–145 mya
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| Juvenile D. altus, Beneski Museum of Natural History | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | Ornithischia |
| Clade: | Iguanodontia |
| Genus: | Dryosaurus Marsh, 1894 |
| Type species | |
| Dryosaurus altus (Marsh, 1878 [originally Laosaurus altus])
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| Other species | |
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Its family, the Dryosauridae, were precursors (ancestors) of the Iguanodons, and lived from the Middle Jurassic to the Lower Cretaceous.
Dryosaurus Media
Restoration of D. altus
Size comparison of D. elderae with a human.
Pelvis, leg, and tooth of D. altus, 1878 (incorrectly labelled as Laosaurus altus)
Cast of the D. elderae holotype skull
D. elderae holotype skeleton (front) with Ceratosaurus, Carnegie Museum
References
- ↑ Galton, P.M. & Jensen, J.A., 1973, "Small bones of the hypsilophodontid dinosaur Dryoraurus altus from the Upper Jurassic of Colorado", Great Basin Nature, 33: 129-132
- ↑ Kenneth Carpenter; Peter M. Galton (2018). "A photo documentation of bipedal ornithischian dinosaurs from the Upper Jurassic Morrison Formation, USA". Geology of the Intermountain West. 5: 167–207.