. Ankylosaurus: -

Belonging from the genus of Thyreohoran dinosaurs, Ankylosaurus was a herbivore that could definitely not make out of this list. Said to reside in western North-America 68 to 66 million years ago, this dinosaurs is also famous for short-tempered & the most dangerous dinosaurs. It could weigh from 4 to 6 tonnes and could have a height of 5.6 feet. It was a quadrupedal dinosaurs, it had an extremely hard shell protecting its spine and skull, it also had a ball like growth on its tail using which it could take down even a Amphicoelias