Yutyrannus belongs to the family of tyrannosauroid dinosaurs that had been found existed in the Aptian age of the Cretaceous period, over 125 million years ago. The remains of the species are identified on the scattered regions of China especially in Liaoning Province - Yixian Formation. The species was first named and described by Xu Xing, Wang Kebai, Zhang Ke, Ma Qingju, Xing Lida, Corwin Sullivan, Hu Dongyu, Cheng Shuqing & Wang Shuo - 2012. This carnivore genus comes under the classification of Chordata, Reptilia, Dinosauria, Theropoda, Tyrannosauroidea.
Remains of three individuals, including one adult and two juveniles are the found fossil representations. From the skeletal structure it has been observed that the dinosaur was measured about 9 meters long and had a weight of about 1,414 kg (3,117 lb). The skulls of the paratypes are 80 centimetres (31 in) and 63 centimetres (25 in) long. The juvenile dinosaurs are covered with white downy feathers that offer an extra support in their navigation, allowing them to blend in with the snowy mountains they live in.