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meaning: "Chaoyang lizard"
Named By: X. Zhao, Z. Cheng & X. Xu in 1999
Time Period: Late Jurassic, 148 Ma
Location: China, Liaoning - Tuchengzi Formation
Size: Uncertain due to lack of fossils, but roughly estimated to be about 1 meter long
Diet: Herbivore
Fossil(s): Partial skull, jaw, cervical (neck) vertebrae, partial scapula (shoulder blade), and partial humerus (upper arm bone)
Classification: | Chordata | Reptilia | Dinosauria | Ornithischia | Marginocephalia | Ceratopsia | Chaoyangsauridae |
Also known as: | Chaoyangosaurus | Chaoyoungosaurus |

Chaoyangsaurus ("Chaoyang lizard") was a marginocephalian dinosaur from the Late Jurassic of China (dated to between 150.8 and 145.5 million years ago). Chaoyangsaurus belonged to the Ceratopsia (Greek for "horned faces"), Chaoyangsaurus, like all ceratopsians, was primarily a herbivore.

Read more about Chaoyangsaurus at Wikipedia
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