Dinosauria

Translingual thumb|Various skeletons of extinct Dinosaurians. Etymology From mul Dinosaurus fearful lizard -ia (Owen, 1841/1842). Proper noun superorder division Archosauria true dinosaurs, including modern birds; a clade of ornithodiran archosaurian diapsid reptiles, distinguished by their hip bones, erect hind limbs and shorter forearms, and differentiated from the pterosaurs, the lagerpetids and other dinosauromorphs, first appearing in the Triassic, they became a polymorphic and widespread group, but only the avian line avoided extinction at the end of the Cretaceous Hypernyms superorder ; Eureptilia clade, Romeriida clade clades; Diapsida subclass subclass; Archosauromorpha infraclass infraclass; Archosauria clade division; Ornithodira clade subsection Hyponyms superorder Saurischia order, †Sauropodomorpha suborder, †Ornithischia order orders Theropoda suborder extant suborder Derived terms en dinosaur member of Dinosauria noun en Dinosaurian or en dinosaurian pertaining to, member of Dinosauria adj. or noun References Richard Owen, “Report on British Fossil Reptiles. Part II”, Report of the British Association for the Advancement of Science for 1841, London: 1841, p. 103. p. 189f.: The following are the names of the species of extinct Reptiles in the order in which they are described in the second and concluding part of the Report:—[...]Order DINOSAURIA.Megalosaurus genus Bucklandi, Cuvier.Hylæosaurus armatus, Mantell.Iguanodon Mantelli, Cuvier. Thomas R. Holtz Jr., “Classification and Evolution of the Dinosaur Groups”, Scientific American Book of Dinosaurs, 2000.