The terrifying dinosaur of the day, 110 million years ago, was Acrocanthosaurus, a killing machine that ruled the Cretaceous long before more well-known predators like T. rex arrived on the scene.
The tracks, which were discovered this month, belong to Acrocanthosaurus, which are theropods, or bipedal dinosaurs with three toes and claws on each limb. The dinosaur would have been four and a ...
But Borealopelta’s biggest threat would likely have been Acrocanthosaurus ... early mammals like these managed to survive when dinosaur life came to an abrupt end. Alberta and its neighbouring ...