Dinosaurs · Ceratopsian

Chaoyangsaurus

Say it chow-yahng-sore-us. The name means ‘Chaoyang lizard’.

Chaoyangsaurus beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of ceratopsians

Length: 1.1 m
Diet: Plant-eater
When: Late Jurassic152 to 145 million years ago
Fossils found in: China
Named by: Zhao, Cheng and Xu (1999)
Family tree: Dinosauria › Ornithischia › Ceratopsia › Neoceratopsia

Where Chaoyangsaurus sits in the age of dinosaurs.Periods from the ICS chart; dinosaur dates from the Natural History Museum

Ceratopsians. Horned and frilled plant-eaters, such as Triceratops. See all 29

Lived at the same time

Chinshakiangosaurus · same country
Chungkingosaurus · same country
Euhelopus · same country
Mamenchisaurus · same country
Sinraptor · same country
Yangchuanosaurus · same country
Yingshanosaurus · same country
Allosaurus

Other ceratopsians

Yinlong Mid Jurassic
Liaoceratops Early Cretaceous
Stenopelix Early Cretaceous
Archaeoceratops Early Cretaceous
Psittacosaurus Early Cretaceous
Aquilops Early Cretaceous
Graciliceratops Late Cretaceous
Zuniceratops Late Cretaceous

Source: Chaoyangsaurus in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.