†family Chaoyangsauridae Zhao 1983

Reptilia - Neornithischia - Chaoyangsauridae

Alternative spelling: Chaoyoungosauroidea

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

Parent taxon: Ceratopsia according to A. O. Fonseca et al. 2024

See also Han et al. 2015, Morschhauser et al. 2019, Zhao 1983, Zhao et al. 2006 and Zheng et al. 2015

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

Subtaxa: Chaoyangsaurus Hualianceratops Stenopelix Xuanhuaceratops Xuanhuasaurus niei Yinlong

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Type: Chaoyangsaurus

Distribution:

• Cretaceous of Germany (1 collection)

• Jurassic to Cretaceous of China (2)

• Jurassic of China (2)

Total: 5 collections each including a single occurrence

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