Utahraptor ostrommaysorum was a giant dromaeosaurid that was nearly 20ft long. Like its smaller cousins, Utahraptor was armed with a "killer claw" that could slice and disembowel prey. In the picture above, the Utahraptor is raiding a turtle nest. If such a theropod were to hunt in packs, it could easly take down a mighty sauropod of the time.
