Dinosaurs · Small ornithischian

Agilisaurus

Say it aj-i-li-sore-us. The name means ‘agile lizard’.

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

Length: 1.5 m
Diet: Plant-eater
When: Late Jurassic169 to 159 million years ago
Fossils found in: China
Named by: Peng (1990)
Family tree: Dinosauria › Ornithischia › Ornithopoda › Euornithopoda

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

Small ornithischians. Small early bird-hipped plant-eaters. See all 7

Lived at the same time

Bellusaurus · same country
Monolophosaurus · same country
Omeisaurus · same country
Sinraptor · same country
Yandusaurus · same country
Yuanmousaurus · same country
Gasosaurus · same country
Huayangosaurus · same country

Other small ornithischians

Othnielia Late Jurassic
Enigmacursor Late Jurassic
Heterodontosaurus Early Jurassic
Lycorhinus Late Triassic
Hypsilophodon Early Cretaceous
Lesothosaurus Early Jurassic

Source: Agilisaurus 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.