Saurornitholestes ("lizard-bird thief") is a genus of carnivorous dromaeosauird (bird-like) theropod dinosaur from the late Cretaceous of Alberta, Montana and New Mexico.
Saurornitholestes was a small bipedal (could walk, run or hop using it’s rear limbs or legs) meat-eating dinosaur, equipped with a sickle-claw on the foot, as like the more known Velociraptor. Saurornitholestes was more long-legged and lightly built than other dromaeosaurids as Velociraptor but resemble Velociraptor in having large, fanglike teeth in the front of the jaws. 
Saurornitholestes most closely resembles Velociraptor, although the precise relationships of the Dromaeosauridae are still relatively poorly understood