Zhuchengtyrannus was among the biggest land predators ever and one of the largest tyrannosaurs yet discovered. This titan was between 33 and 40 feet in length and weighed over 4-6 tons. Zhuchengtyrannus was one of the top predators in the area. It's only competition would have been it's cousin Tarbosaurus. Zhuchengtyrannus lived in Asia about 75 million years ago.