Chaoyangsaurus Zhao et al. 1999 (ornithischian)

Reptilia - Neornithischia - Chaoyangsauridae

Invalid subtaxa: Chaoyangosaurus Zhao and Cheng 1983 [replaced name], Chaoyoungosaurus Zhao and Cheng 1983 [replaced name]

Full reference: X. Zhao, Z. Cheng, and X. Xu. 1999. The earliest ceratopsian from the Tuchengzi Formation of Liaoning, China. Journal of Vertebrate Paleontology 19(4):681-697

Parent taxon: Chaoyangsauridae according to F. Han et al. 2015

See also Butler et al. 2007, Butler et al. 2008, Chinnery 2004, Dong 1992, Han et al. 2012, Jin et al. 2009, Makovicky 2001, Sereno 1999, Sereno 2000, Xu et al. 2006, You and Dodson 2003, You and Dodson 2004, Zhao 1983, Zhao 1985, Zhao et al. 1999, Zhao et al. 2006 and Zheng et al. 2015

Sister taxa: Hualianceratops, Xuanhuaceratops, Xuanhuasaurus niei, Yinlong

Subtaxa: Chaoyangsaurus youngi

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Type: Chaoyangsaurus youngi

Ecology: ground dwelling herbivore

Distribution: found only at Ershijiazi, Chaoyang (Jurassic of China)

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