Reptilia - Ornithischia

Synonyms: Hongshanosaurus You et al. 2003, Protiguanodon Osborn 1923

Full reference: H. F. Osborn. 1923. Two Lower Cretaceous dinosaurs of Mongolia. American Museum Novitates 95:1-10

Parent taxon: Ceratopsia according to E. M. Morschhauser et al. 2019

See also Averianov et al. 2006, Brinkman et al. 2001, Buchholz 2002, Buffetaut and Ingavat 1992, Butler et al. 2007, Butler et al. 2008, Campione and Holmes 2006, Carroll 1988, Chao 1962, Charig 1967, Cheng 1982, Coombs 1980, Coombs 1982, Dong 1992, Eberth et al. 1994, Galton 1972, Han et al. 2012, Hedrick and Dodson 2013, Huene 1934, Huene 1934, Huene 1958, Huene 1959, Kuhn 1964, Makovicky 2001, Napoli et al. 2019, Nopcsa 1928, Norell 1997, Olshevsky and Ford 1994, Osborn 1923, Osborn 1924, Ostrom and Wellnhofer 1986, Romer 1956, Romer 1966, Rozhdestvensky 1977, Ruiz-Omeñaca and Canudo 2003, Russell 1984, Sereno 1986, Sereno 1990, Sereno 1990, Sereno 1997, Sereno 1997, Sereno 1998, Sereno 1999, Sereno 2000, Sereno 2010, Sereno and Chao 1988, Sereno et al. 1988, Sereno et al. 2007, Sues and Galton 1982, Swinton 1970, Tanoue et al. 2009, Tatarinov 1964, Thulborn 1974, You and Dodson 2004, You et al. 2003, Young 1958, Zheng et al. 2015 and Zhou et al. 2006

Sister taxa: Albalophosaurus, Chaoyangosauridae, Dysganus, Eoceratopsinae, Kulceratops, Kulceratops kulensis, Microceratus, Micropachycephalosaurus, Neoceratopsia, Notoceratops, Pachyrhinosauridae, Psittacosauridae, Psittacosauroidea, Psittacosaurus sattayaraki, Serendipaceratops

Subtaxa: Psittacosaurus amitabha Psittacosaurus gobiensis Psittacosaurus lujiatunensis Psittacosaurus mazongshanensis Psittacosaurus meileyingensis Psittacosaurus mongoliensis Psittacosaurus neimongoliensis Psittacosaurus ordosensis Psittacosaurus sibiricus Psittacosaurus sinensis Psittacosaurus xinjiangensis

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Ecology: ground dwelling herbivore

Distribution:

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Specimen images are retrieved through the ePANDDA API.