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Chaoyangsaurus Zhao et al. 1999 (ornithischian)

Reptilia - Neornithischia - Chaoyangsauridae

PaleoDB taxon number: 55579

Invalid subtaxa: Chaoyangosaurus Zhao and Cheng 1983 [replaced name] (no. 65703), Chaoyoungosaurus Zhao and Cheng 1983 [replaced name] (no. 313247)

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

Sister taxa: Hualianceratops, Xuanhuaceratops, Yinlong

Subtaxa: Chaoyangsaurus youngi

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Type: Chaoyangsaurus youngi

Ecology: ground dwelling herbivore