Dinosaurs · Prosauropod

Yunnanosaurus

Say it yoo-nahn-oh-sore-us. The name means ‘Yunnan lizard’.

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

Length: 7 m
Diet: Ate plants and animals
When: Early Jurassic205 to 190 million years ago
Fossils found in: China
Named by: Young (1942)
Family tree: Dinosauria › Saurischia › Sauropodomorpha › Prosauropoda › Plateosauria

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

Prosauropods. Early long-necked plant-eaters, relatives of the sauropods. See all 16

Lived at the same time

Other prosauropods

Jingshanosaurus Early Jurassic
Massospondylus Early Jurassic
Aardonyx Early Jurassic
Lufengosaurus Early Jurassic
Plateosaurus Late Triassic
Ammosaurus Early Jurassic
Yimenosaurus Early Jurassic
Anchisaurus Early Jurassic

Source: Yunnanosaurus 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.