†unranked clade Ornithischia Seeley 1888 (ornithischian)

Reptilia - Ornithischia

Alternative spelling: Ornithosuchia

Synonyms: Omosauria Seeley 1887, Praedentata Marsh 1894, Predentata Marsh 1894

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: Dinosauria according to D. Madzia et al. 2018

See also Arbour et al. 2014, Arbour and Evans 2017, Bakker 1986, Bakker and Galton 1974, Benton 1979, Benton 1990, Brinkman and Sues 1987, Broom 1913, Brown et al. 2017, Buffetaut and Ingavat 1992, Carrano 2017, Carroll 1988, Cooper 1985, Cruzado-Caballero et al. 2010, Escaso et al. 2014, Estes 1964, Evans et al. 2013, Ezcurra 2006, Freedman Fowler and Horner 2015, Gardiner 1982, Gasulla et al. 2015, Gauthier 1986, Gauthier et al. 1989, Gauthier and Padian 1985, Gilmore 1916, Hatcher 1901, Hatcher et al. 1907, Haubold 1971, Haughton and Brink 1954, Hay 1902, Hennig 1915, Huene 1909, Huene 1948, Huene 1954, Jaekel 1910, Janensch 1914, Jasinski and Sullivan 2011, Kuhn 1946, Kuhn 1964, Kuhn 1964, Lambe 1911, Langer and Benton 2006, Leahey et al. 2015, Long and Murry 1995, Lull 1904, Lull 1912, Lull 1915, Lull 1921, Lull 1924, Marsh 1894, Marsh 1895, Marsh 1896, Martínez and Alcober 2009, Matthew 1915, McKelvey 1920, Nesbitt 2011, Novas 1989, Novas 1992, Novas 1993, Novas 1996, Osborn 1904, Ostrom 1980, Parks 1935, Parsch 1963, Peng et al. 2001, Penkalski and Tumanova 2017, Rivera-Sylva et al. 2017, Romer 1956, Romer 1966, Roxo 1937, Seeley 1887, Seeley 1888, Seeley 1888, Seeley 1888, Sereno 1986, Sereno 1997, Sereno 1998, Sereno 1999, Sereno et al. 1993, Shibata et al. 2011, Shibata et al. 2015, Sternberg 1954, Swinton 1934, Tatarinov 1964, Thulborn 1975, Thurmond and Jones 1981, Tornier 1913, von Zittel 1911, Wang et al. 2017, Watabe et al. 2011, Woodward 1898, Yang et al. 2013, Young 1935, Zhao 1983, Zheng et al. 2012, Zheng et al. 2018 and Zheng et al. 2009

Sister taxa: Allophagi, Ancistrodon, Astrodon pusillus, Camposaurus arizonensis, Carnosauriformes, Cridotrisauropus, Dictyoolithidae, Diplodocia, Dystrophaeidae, Elephantopoides, Geosauridae, Gigantosauropus, Gyrotrisauropus, Harpagosauria, Harpedactylus, Herreravia, Huanglongpus, Lagunculapes, Megalosauridae, Mirsosauropus, Neosauropus, Nyasasaurus, Omosaurus phillipsi, Opisthocoelia, Ornithischiformes, Paleodinosauria, Phytodinosauria, Phytophagi, Polemarchus, Polyclonoolithidae, Postpubici, Praepubici, Prismatoolithidae, Ravatosauropus, Saltosauropus, Saurischia, Sauropodichnus, Sillimanius, Sinoichnites, Steropoides, Tarsodactylus, Tarsoplectrus, Teyuwasu barberenai, Therophagi, Therosauria, Toyamasauripus, Tretospondylia, Xiphopeza, Youngoolithidae, Yunnanpus

Subtaxa: Alocodon Apulosauripus Armatosauria Delatorrichnus Enoplosauria Fabrosauridae Fabrosaurus Ferganocephale Genasauria Gongbusaurus Gregaripus Heterodontosauridae Heterodontosauriformes Komlosaurus Krzyzanowskisaurus Laoyingshanpus Laquintasaura Lesothosauria Ligabueichnium Metatetrapous Neornithischia Notoceratops Orbitoscuta Orthopoda Pisanosaurus Qijiangpus Tacuarembovum Trimucrodon Xiaosaurus

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