Proceratosaurus

Proceratosaurus was a small dinosaur from the Middle Jurassic, about 165 million years ago. It was found in Gloucestershire, England, in 1910. It was a  carnivorous theropod.

Proceratosaurus was first believed to be an early ancestor of Ceratosaurus, but it was actually an ancestor of the coelurosaurs. Thus, it was an early ancestor of Tyrannosaurus and its relatives in the Upper Cretaceous.Holtz, Thomas 1998. A new phylogeny of the carnivorous dinosaurs. Gaia 15: 5–61.Oldest T. rex relative identified". BBC News. 2009. Rauhut O.W.M; Milner A.C. and Moore-Fay S. 2010. Cranial osteology and phylogenetic position of the theropod dinosaur Proceratosaurus bradleyi (Woodward, 1910) from the Middle Jurassic of England. Zoological Journal of the Linnean Society. 

The animal in life was about 3m long and weighed up to 60kg.

 References 

Category:Coelurosaurs