Utahraptor is an early dromaeosaur from North America. At well over 16-20 feet long and 800-1,000 pounds, it's also the largest. The sickle claw on it's feet was over a foot in length. Direct evidence for feathers on Utahraptor is not known, but given the presence of feathers on other dromaeosaurs, including the similarly sized Dakotaraptor, it's likely Utahraptor had feathers too. Utahraptor lived roughly 125-130 million years ago.