Chaoyangsauridae

Chaoyangsauridae
Temporal range: Late Jurassic, 160–148 Ma
Compared close-up of the four so far known chaoyangsaurid genera, with pink representing known parts of skulls
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Ornithischia
Suborder: Ceratopsia
Family: Chaoyangsauridae
Zhao, Cheng, & Xu, 1999
Type species
Chaoyangsaurus youngi
Zhao, Cheng, & Xu, 1999
Genera

Chaoyangsauridae is a family of ceratopsian dinosaurs. They are among the earliest known marginocephalian dinosaurs, with remains dating to about 160 million years ago, during the Late Jurassic period. Members of this group had sharp beaks for snipping off leaves to eat, and a very small frill.

Four dinosaur genera, Chaoyangsaurus, Xuanhuaceratops, Yinlong and Hualianceratops, are usually considered to belong to the Chaoyangsauridae. All four animals are more primitive (or basal) than both Psittacosaurus and neoceratopsians.

See also



This page was last updated at 2023-10-08 01:47 UTC. Update now. View original page.

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