The Columbia Encyclopedia, Sixth Edition. 2001-07.
Velociraptor
(vls´rp´´tr) (KEY) [Gr.,=swift robber], swift bipedal carnivorous dinosaur of the late Cretaceous period. It was relatively small, being approximately 6 ft (1.8 m) long. It was similar to Deinonychus in appearance and, like that dinosaur, had a lethal sickle-shaped claw on the second toe of each three-toed foot, which was used for attacking prey. Fossil skeletons have been found in Mongolia. A find of particular interest, discovered in the Gobi desert in 1971, revealed a Velociraptor in the act of attacking another dinosaur, the herbivorous Protoceratops.Velociraptor belongs to the group of saurischian theropods [Gr., = beast feet] that includes Tyrannosaurus, Deinonychus, and living birds.