Up next we have the ankylosaurus, this herbivore is a literal armor tank.This dinosaur had an armor plates that protected it on the top. The Ankylosaurus lived in the Cretaceous Period in North America. The ankylosaurus weighed from 8,800 to 15,000 lbs as an adult. The most lethal weapon that this herbivore has is its club tail one hit from it would be enough to cause any predator to walk away with a broken bone or internal injury. The force of the tail is 104137 per square inch. From what scientist know about Ankylosaurus is that they moved on all four limbs, and its hind limbs were slightly longer than its forelimbs. One of the main reasons It would be difficult even without the armor to get a purchase on it because its body is relatively flat.