What name are you giving this dinosaur?

The animal lived 72 to 66 million years ago in what I now Germany possessed unique sexual dimorphism the males weighed around 1.7 tons while the females weighed around 1300 pounds the males addictionally had more prominent crests and longer limbs than their female counterparts and the species possessed gregarious behavior this was due to their prey being large aggressive sauropod and hadrosaurids and their closest relatives were tyrannosaurus