PaleoDB taxon number: 91973
Alternative spelling: Ornithosuchia
Synonyms: Omosauria Seeley 1887 (no. 56554), Orthopoda Cope 1866 (no. 53390), Praedentata Marsh 1894 (no. 304261), Predentata Marsh 1894 (no. 52978)
Full reference: H. G. Seeley. 1888. On the classification of the fossil animals commonly named Dinosauria. Proceedings of the Royal Society of London 43:165-171
Parent taxon: Eudinosauria according to M. T. Carrano 2020
Sister taxa: Ancistrodon, Astrodon pusillus, Camposaurus arizonensis, Carnosauriformes, Dictyoolithidae, Diplodocia, Dystrophaeidae, Elephantopoides, Gigantosauropus, Harpagosauria, Harpedactylus, Herreravia, Huanglongpus, Iguanodonichnus, Lagunculapes, Megalosauridae, Mirsosauropus, Mosaicoolithus, Neosauropus, Nyasasaurus, Omosaurus phillipsi, Ornithischiformes, Paleodinosauria, Phytodinosauria, Phytophagi, Polemarchus, Polyclonoolithidae, Postpubici, Praepubici, Prismatoolithidae, Saltosauropus, Saurischia, Sauropodichnus, Sillimanius, Similifaveoloolithidae, Sinoichnites, Stalicoolithidae, Steropoides, Tarsodactylus, Therophagi, Therosauria, Toyamasauripus, Tretospondylia, Xiphopeza, Youngoolithidae, Yunnanpus
Subtaxa: Alocodon, Apulosauripus, Armatosauria, Delatorrichnus, Enoplosauria, Fabrosauridae, Fabrosaurus, Ferganocephale, Genasauria, Gongbusaurus, Gregaripus, Gyrotrisauropus, Heterodontosauridae, Heterodontosauriformes, Komlosaurus, Krzyzanowskisaurus, Laoyingshanpus, Laquintasaura, Lesothosauria, Ligabueichnium, Neornithischia, Notoceratops, Orbitoscuta, Pisanosaurus, Poposauria, Tacuarembovum, Trimucrodon, Xiaosaurus
Ecology: ground dwelling herbivore