Dryosaurus (/ˌdraɪəˈsɔːrəs/DRY-ə-SOR-əs, meaning 'tree lizard', Greek δρῦς (drys) meaning 'tree, oak' and σαυρος (sauros) meaning 'lizard'; the name reflects the forested habitat, not a vague oak-leaf shape of its cheek teeth as is sometimes assumed) is a genus of an ornithopod dinosaur that lived in the Late Jurassic period. It was an iguanodont (formerly classified as a hypsilophodont). Fossils have been found in the western United States and were first discovered in the late 19th century. Valdosaurus canaliculatus and Dysalotosaurus lettowvorbecki were both formerly considered to represent species of Dryosaurus.[1][2][3]
^Tom R. Hübner; Oliver W. M. Rauhut (2010). "A juvenile skull of Dysalotosaurus lettowvorbecki (Ornithischia: Iguanodontia), and implications for cranial ontogeny, phylogeny, and taxonomy in ornithopod dinosaurs". Zoological Journal of the Linnean Society. 160 (2): 366–396. doi:10.1111/j.1096-3642.2010.00620.x.
^McDonald AT, Kirkland JI, DeBlieux DD, Madsen SK, Cavin J, et al. (2010). Farke AA (ed.). "New Basal Iguanodonts from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs". PLOS ONE. 5 (11): e14075. Bibcode:2010PLoSO...514075M. doi:10.1371/journal.pone.0014075. PMC 2989904. PMID 21124919.
^Galton, P.M., 1977. "The Upper Jurassic dinosaur Dryosaurus and a Laurasia-Gondwana connection in the Upper Jurassic", Nature 268(5617): 230-232
Dinosaur National Monument Dryosaurus as a new species, D. elderae. In 2003 remains from Portugal were tentatively referred to Dryosaurus, possibly meaning it...
Middle Jurassic to Late Cretaceous. Some members include Camptosaurus, Dryosaurus, Iguanodon, Tenontosaurus, and the hadrosaurids or "duck-billed dinosaurs"...
genus. However, in 1975 Peter Galton named them as a new species of Dryosaurus: Dryosaurus canaliculatus. The specific name means "with a small channel" in...
thyreophoran from Africa Gargoyleosaurus, a thyreophoran from North America Dryosaurus, a North American ornithopod Camptosaurus, an ornithopod from North America...
Hypsilophodontidae), including Hypsilophodon, Nanosaurus, Laosaurus and Dryosaurus. Zittel considered the family to unite all taxa that lacked premaxilla...
histology and growth of the "hypsilophodontid" dinosaurs Orodromeus makelai, Dryosaurus altus, and Tenontosaurus tillettii (Ornithischia: Euornithopoda)". Journal...
Middle Jurassic of the United Kingdom, is the oldest known dryosaurid. Dryosaurus, from the Upper Jurassic of the United States, is the type genus of Dryosauridae...
species. The paper (primarily concerning the transcontinental nature of Dryosaurus) considered Laosaurus consors and L. gracilis synonyms of O. rex without...
Barosaurus, and Brachiosaurus; herbivorous ornithischians Stegosaurus, Dryosaurus, and Nanosaurus; as well as the carnivorous theropods Allosaurus, Marshosaurus...
"Ontogenetic Changes in the Bone Histology of the Late Jurassic Ornithopod 'Dryosaurus Lettowvorbecki'". Journal of Vertebrate Paleontology. 15 (1): 96–104....
remains were removed by Richard Swann Lull to the new ornithopod species Dryosaurus grandis, except for a tooth. It was transferred to Antrodemus by Oliver...
these features were similar to, but "more fully developed" than those in Dryosaurus. Camptosaurus teeth frequently exhibit extensive wear, which indicates...
served as prey, included the herbivorous ornithischians Camptosaurus, Dryosaurus, Stegosaurus, and Nanosaurus. Predators in this paleoenvironment included...
Brachiosaurus, Camarasaurus, and Diplodocus; and the ornithischians Camptosaurus, Dryosaurus, and Stegosaurus. Apatosaurus is commonly found at the same sites as Allosaurus...
Barosaurus. Other ornithischians included Camptosaurus, Gargoyleosaurus, Dryosaurus, Othnielosaurus and Drinker. Stegosaurus is commonly found at the same...
early-Aptian Kalahari Deposits Formation. It was probably similar to Dryosaurus. Kangnasaurus was named in 1915 by Sidney H. Haughton. The type species...
Eousdryosaurus ("eastern Dryosaurus") is a genus of basal iguanodontian dinosaur known from a partial skeleton discovered in Upper Jurassic rocks in western...
there. Finally, ornithopods found in the Morrison include Camptosaurus, Dryosaurus, and Nanosaurus, During the Early Cretaceous, new dinosaurs evolved to...
Al is then shown at the age of two years. He tries to hunt a flock of Dryosaurus. He has not yet learned how to ambush so he fails to kill one of the swifter...
The Land Before Time IV: Journey Through the Mists chasing a flock of Dryosaurus. A "Swimming Sharptooth" (Hydrotherosaurus) appeared near the end of The...
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