Acrocanthosaurus / Tenontosaurus VFB Paleoart Estas espinas eran una característica

Estas espinas eran una característica distintiva de su espalda

lurks stealthily

Length 292mm

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

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

Acrocanthosaurus / Tenontosaurus VFB Paleoart Estas espinas eran una característicaAcrocanthosaurus 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