Sinraptor

[1] Sinraptor and its close relatives were among the earliest members of the Jurassic carnosaurian radiation.

[1] The holotype specimen of Sinraptor was uncovered from the Shishugou Formation during a joint Chinese/Canadian expedition to the northwestern Chinese desert in 1987, and described by Philip J. Currie and Zhao Xijin in 1994.

[2] Gregory S. Paul proposed that S. dongi would reach 8 metres (26 ft) in length and 1.3 metric tons (1.4 short tons) in body mass,[4] while Holtz estimated it to be 8.8 metres (29 ft) in length.

[5] The dentition of Sinraptor was very similar to that of Allosaurus and indicated that it likely would have preyed upon medium-sized dinosaurs such as stegosaurs by using its blade-like teeth to inflict massive, fatal wounds.

[9] Sinraptor dongi skull specimen IVPP 10600 exhibits "a variety of gently curving tooth drags or gouges, shallow, circular punctures and one fully penetrating lesion."

Life restoration of S. dongi
The skull of S. hepingensis , displayed at the Zigong Dinosaur Museum
Size comparison