Proceratosaurus

Say it like this: “proh-suh-RAT-oh-SAW-ruhs”

Proceratosaurus bradleyi

Proceratosaurus ate meat and walked on two legs. It lived in the Middle Jurassic. Bones have been found in the United Kingdom.

Quiz me on Proceratosaurus

When: Middle Jurassic (Bathonian) · roughly 168.2 to 165.3 million years ago
Named in: 1926 · Huene, F. V.
Hip height: 0.7 m · 2 ft
Length: 3–4 m · 10–13 ft
Weight: 28–100 kg · 62–220 lb
Found in: the United Kingdom
Food and walking: Carnivore · Two legs
Kind: sharp-clawed runner · Theropod
Family branch: Proceratosauridae

The story in short

In 1926, F. V. Huene published the name Proceratosaurus. The name means “before Ceratosaurus.”

Fossils referred to Proceratosaurus date to the Middle Jurassic (Bathonian), roughly 168.2 to 165.3 million years ago. Finds come from the United Kingdom. It was a carnivore and walked on two legs.

Published estimates put Proceratosaurus at a length near 3–4 m, hips about 0.7 m high, and a body mass around 28–100 kg.

On the family tree it sits in Proceratosauridae, among the theropod dinosaurs.

Close relatives

Guanlong

Guanlong wucaii

Middle Jurassic · Late Jurassic (Callovian · Oxfordian) · roughly 165.3 to 154.8 million years ago

Kileskus

Kileskus aristotocus

Middle Jurassic (Bathonian) · roughly 168.2 to 165.3 million years ago

Sinotyrannus

Sinotyrannus kazuoensis

Early Cretaceous (Aptian) · roughly 121.4 to 113.2 million years ago