It had four stout legs and a long tail

It also had a distinctive bony crest on top of its head

It is estimated to have been around 27 meters long

One of the most distinctive features of Olorotitan arharensis was its bony crest

se caían y volvían a crecer cada año

Acrocanthosaurus / Tenontosaurus Variant:Unprimed It had four stout legsAcrocanthosaurus atokensis is the only known species of the extinct genus Acrocanthosaurus, a carcharodontosaurid theropod dinosaur that inhabited North America during the Cretaceous period, approximately 125 to 99. 6 million years ago. It stands out for the tall neural spines on many of its vertebrae, which suggest the presence of a kind of "hump" on its neck, back and hips. It was one of the largest theropods, with a length of up to 11. 5 meters and