Outline: a typical theropod

White Limestone Fm., United KingdomNamed 1926

Proceratosaurus

PRO-seh-RAT-oh-SORE-us

"before Ceratosaurus"

Lived
168 to 165 million years ago, Middle Jurassic
Diet
Carnivore
Length
estimates range from 3 to 4.1 m (10 to 13 ft)
Group
Theropods, Proceratosauridae
Found in
United Kingdom
Named by
Huene 1926

Where its fossils were found

The evidence

Today

1 find

165 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Proceratosaurus

What it was like

Proceratosaurus was a small meat eater between 3 and 4.1 meters (10 to 13 feet) long, known from a single skull. It had a thin crest on its snout, which is why it was first thought to be related to Ceratosaurus.

It is now known to be an early relative of Tyrannosaurus, part of a group of crested hunters that includes Guanlong from China.

Its world

It lived in the Middle Jurassic, about 168 to 165 million years ago, in what is now England. Its skull comes from the White Limestone, rock formed in warm, shallow seas around low islands.

How it was found

Huene named Proceratosaurus in 1926. The skull had been found years earlier and first placed in Megalosaurus.

Close relatives

Other members of Proceratosauridae

Sources: WikidataNamed in: F. v. Huene. 1926. On several known and unknown reptiles of the order Saurischia from England and France. Annals and Magazine of Natural History, series 9 17:473-489