Kelmayisaurus gigantus is based on a single vertebrae that is believed to have probably been from a sauropod. However, if it truly did come from a theropod, specifically a Carcharadontosaurid, it is estimated at 22 meters long (72 feet)! By comparison, T. rex measured about 12 meters (39 feet) on average. I'm not even going to try to make any definitive weight estimates, though 25+ tonnes (28+ tons) doesn't seem entirely implausible (for its length). Its height would have been about 6 meters (20 feet) at the hips. It would have essentially been the real-life equivalent of ARK's version of Giganotosaurus.