Yangchuanosaurus is otherwise referred as Yangchuan lizard and this genus belongs to the family of metriacanthosaurid theropod dinosaur. It is believed that the species have been lived in the current Woodlands of Asia, about 155-145 million years ago (late Jurassic period). The first fossil skeleton of the genus was found in the Yangchuanosaurus District of China in 1977.
From the researches it has been observed that the creature was a large, powerful meat-eater. It had a big head with powerful jaws having an ordered arrangement of large serrated teeth. The type specimen had a skull length of 1.11 m (3.6 ft) which proves that the creature was probably the gigantic structure. The dinosaur walked on two large, muscular legs and had short arms having three clawed fingers on each hand. This gigantic Yangchuanosaurus was about 25 feet long and weighed approximately 2-3 tons.