It is estimated to have been around 27 meters long

Approximate measurements of the Protoceratops: Complete 1:20 Scale

aunque no tan grandes como los de algunos de sus parientes como el Smilodon

approximately 275 million years ago

Acrocanthosaurus / Tenontosaurus Variant:Unprimed It is estimated to haveAcrocanthosaurus 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