The Ankylosaurus was a heavily armored dinosaur with a tail that could be used as a club.
Although it’s not the biggest or most ferocious dinosaur, the Ankylosaurus was covered in bony plates that served as armor against its predators, including the T.rex.
The Ankylosaurus’ tail ended with a bony ball that could be used as a club if provoked. Scientists have also proposed that the tail was used to attract mates.