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Yangchuansaurus
Yangchuanosaurus
is a large therapod dinosaur from the Jurassic period. It is related to the North American Allosaurus. It lived with the dinosaurs Mamenchisaurus, Tuojiangosaurus and so on. Like a lion, the Yangchuanosaurus and its hunting pack frightens its prey in order to seize the weakest members to devour it.