Acrocanthosaurus / Tenontosaurus VFB Paleoart where temperatures were likely milder

where temperatures were likely milder than in modern Antarctica due to a global greenhouse effect during the Cretaceous

Estas espinas eran una característica distintiva de su espalda

suggesting that it could have used its tail as a defensive weapon against predators

Deinonychus es conocido por tener una anatomía única que lo hizo un depredador muy efectivo

Snout-tail length 440 mm

Acrocanthosaurus / Tenontosaurus VFB Paleoart where temperatures were likely milderAcrocanthosaurus 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