Sinraptor (Chinese thief)
Currie & Zhao – 1994
Estimated 7.5 meters long
S. dongi (type), S. hepingensis
China – Shishugou Formation
Late Jurassic, 160 million years ago
Sinraptor is a genus of theropod dinosaur that lived in what is now China during the Late Jurassic period, around 160 million years ago. The name “Sinraptor” means “Chinese thief”, which reflects the fact that its fossils were initially discovered illegally by Chinese fossil smugglers and then sold to paleontologists.
Sinraptor was a large theropod dinosaur, measuring up to 7.5 meters (25 feet) in length and weighing over 1,000 kilograms (2,200 pounds). It had a long, slender body, powerful hind legs, and sharp claws. Like other theropod dinosaurs, it was a carnivore and likely hunted smaller dinosaurs and other animals.
Sinraptor is notable for its relatively large arms, which were longer than those of most other large theropod dinosaurs. This suggests that it may have been a relatively agile predator that could use its arms to grasp and hold onto its prey. In addition, Sinraptor had a large, tooth-filled skull with a powerful bite, which would have been used to kill and tear apart its prey.
Sinraptor is part of the family of dinosaurs known as the allosauroids, which includes other large theropods such as Allosaurus and Acrocanthosaurus. It is an important dinosaur for our understanding of the diversity of life during the Late Jurassic period in China, and its discovery has helped to shed light on the evolution and behavior of large theropod dinosaurs.