Mapusaurus was a giant South American meat-eating dinosaur with blade-like teeth for slicing off chunks of sauropod flesh.
At 14 meters long, Mapusaurus was a large carnivorous dinosaur. It is similar in size to the closely related Giganotosaurus. Fossils from at least seven individuals of various ages were discovered in a bone bed in Argentina. This may suggest they worked in groups to take down the large sauropods of the time, such as the colossal Argentinosaurus, something a single Mapusaurus may not have been able to accomplish alone. Alternatively this group find may represent a simple predator-trap.