Dinosaurs · Small theropod

Proceratosaurus

Say it proh-ker-at-oh-sore-us. The name means ‘before Ceratosaurus’.

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

Length: 4.1 m
Diet: Meat-eater
When: Mid Jurassic169 to 164 million years ago
Fossils found in: England
Named by: Woodward (1910)
Family tree: Dinosauria › Saurischia › Theropoda › Neotheropoda › Tetanurae › Avetheropoda › Coelurosauria

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

Small theropods. Small two-legged dinosaurs, many feathered, the group that includes birds. See all 60

Found in Britain. Fossils of Proceratosaurus have been found in the United Kingdom. Read about how Britain moved across the globe in Britain's journey.

Lived at the same time

Cetiosauriscus · same country
Cetiosaurus · same country
Eustreptospondylus · same country
Megalosaurus · same country
Agilisaurus
Bellusaurus
Dubreuillosaurus
Gasosaurus

Other small theropods

Gasosaurus Mid Jurassic
Anchiornis Late Jurassic
Guanlong Late Jurassic
Nqwebasaurus Mid Jurassic
Coelurus Late Jurassic
Juravenator Late Jurassic
Ornitholestes Late Jurassic
Archaeopteryx Late Jurassic

Source: Proceratosaurus 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.