Utahraptor
Utahraptor (Utah predator) is a genus of theropod dinosaurs, including the largest known species of the family Dromaeosauridae. It is known from fragmentary skeletons such as skull fragments, a tibia, claws and some caudal (tail)vertebrae. The material shows a raptor about twice the length of Deinonychus. Like other dromaeosaurids,Utahraptor had large curved claws on their second toes. One claw found shows it at 22 centimetres (8.7 in) in length and is thought to reach 24 centimetres (9.4 in) restored.estimated to have reached up to 7 m (23 ft) long and somewhat less than 500 kg (1,100 lb) in weight, about the size of a grizzly bear. Some undescribed specimens in the BYU collections may have reached up to 11 m (36 ft) long, though these need to undergo more detailed study. Although no feathers have ever been found with these skeletons, it is believed to have had feathers.
The largest reported in gray the largest described in green.