related to Subgroups · 41Ornithischia → Allosaurus, Ankylosauria, Ankylosaurs, Ankylosaurus, Camarasaurus, Cerapoda, Ceratopsia, Ceratopsians, Cretaceous, Daniel Madzia, Early Jurassic, Following, Genasauria, Hadrosauridae, Hypsilophodontidae, Iguanodon, Jurassic, Late Cretaceous, Late Jurassic, Madzia
related to Evolution · 37Ornithischia → Alternatively, Argentina, Azendohsaurus, Baron, Crosbysaurus, Dinosauria, Early Jurassic, Galtonia, If Pisanosaurus, Jurassic, Lesothosaurus, Lucianosaurus, Many, Matthew, Norman, Ornithoscelida, Parker, Pekinosaurus, Phytodinosauria, Pisanosaurus
related to history · 34Ornithischia → Andrew, Bakker, Cerapoda, Ceratopsia, David, Dinosauria, Discussions, Dryosaurus, Edward Drinker Cope, Galton, Genasauria, Harry Govier Seeley, Heterodontosauridae, Hypsilophodon, Iguanodon, Lesothosaurus, Many, Marsh, Milner, Norman
Dubious ornithischians · 22Ornithischia → †Alocodon, †Archaeocursor, †Chilesaurus?, †Eocursor, †Fabrosaurus, †Ferganocephale, †Genasauria Sereno, 1986 †Serendipaceratops †Thyreophora †Neornithischia, †Gongbusaurus?, †Heterodontosauridae, †Laosaurus, †Laquintasaura?, †Lesothosaurus, †Neornithischia, †Notoceratops, †Pisanosaurus?, †Saphornithischia Madzia et al., 2021 †Archaeocursor †Eocursor †Laquintasaura? †Lesothosaurus †Heterodontosauridae †Genasauria Sereno, 1986 †Serendipaceratops †Thyreophora †Neor…, †Serendipaceratops, †Silesauridae? (paraphyletic?), †Syngonosaurus, †Thyreophora
related to Integument · 11Ornithischia → Borealopelta, Despite, Examples, Exceptionally, Haolong, In Psittacosaurus, Kulindadromeus, Many, Psittacosaurus, Several, Unlike
related to Skulls · 10Ornithischia → Early Jurassic, Emausaurus, Lesotho, Lesothosaurus, Much, Scelidosaurus, Skulls, Stegosauria, Stegosaurus, Thyreophora
related to Palaeoecology · 3Ornithischia → Fruitadens, Ornithischians, Previously
related to "Bird-hip" · 2Ornithischia → Dromaeosauridae, Figure
related to Description · 1Ornithischia → Ornithischians
