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†family Chaoyangsauridae Zhao 1983 (ornithischian)

Reptilia - Neornithischia

PaleoDB taxon number: 153949

Alternative spelling: Chaoyoungosauroidea

Synonym: Xuanhuasaurus niei Zhao 1985 [nomen dubium] (taxon 313239)

Full reference: X. Zhao. 1983. Phylogeny and evolutionary stages of Dinosauria. Acta Palaeontologica Polonica 28(1-2):295-306

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

Sister taxa: Albalophosaurus, Chaoyangosauridae, Eoceratopsinae, Micropachycephalosaurus, Neoceratopsia, Pachyrhinosauridae, Psittacosauridae, Psittacosauroidea, Serendipaceratops, Stenopelix

Subtaxa: Chaoyangsaurus, Hualianceratops, Xuanhuaceratops, Yinlong

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Type: Chaoyangsaurus

Ecology: ground dwelling herbivore