Invalid subtaxa: Bihariosaurus Marinescu 1989 [nomen nudum], Fulgurotherium Huene 1932 [nomen dubium], Iguanodon anglicum Holl 1829 [nomen dubium], Iguanodon anglicus Holl 1829 [nomen dubium], Iguanodon ottingeri Galton and Jensen 1979 [nomen dubium]
Full reference: G. Baur. 1891. Remarks on the reptiles generally called Dinosauria. The American Naturalist 25(293):434-454
Parent taxon: Ornithopoda according to F.-L. Han et al. 2012
Sister taxa: Anabisetia, Anomoepodidae, Bonaparteichnium, Brachypoda, Camptosaurichnus, Caririchnium, Dakotasaurus, Dinehichnus, Dinosauropodes, Dolichopoda, Euornithopoda, Fabrosauria, Gasparinisaura, Gideonmantellia, Hypsiloichnus, Hypsilophodon, Hypsilophodontia, Jeholosauridae, Jiayinosauropus, Kalodontoidea, Koreanosaurus, Laoyingshanpus, Leaellynasaura, Moyenisauropodidae, Nanosauridae, Ornithopodichnites, Ovaloolithidae, Qantassaurus, Staurichnium, Talenkauen, Tetrapodosauridae, Thescelosauridae, Trachodontoidea, Trinisaura, Unespichnium, Wintonopus, Yueosaurus
Subtaxa: Ankylopollexia, Barilium, Camptosauroidea, Camptosaurus, Dryomorpha, Dryosauridae, Euiguanodontia, Iguanodontoidea, Ratchasimasaurus, Rhabdodontidae, Tenontosaurus
Ecology: ground dwelling herbivore