albertosaurus attacks albertaceratops

aggressive alberta albertaceratops albertosaurus america animal apex art bird canada carnivore carnivorous ceratopsid claws creature cretaceous dinosaur era evolution extinct extinction flight flying frill genus herbivore herbivorous horn illustration image lizard longiceps mesozoic nature neck nesmoi north organism paleo paleontology period picture predator prehistoric primeval primitive pteranodon pterodactyl pterodactyloid pterodactylus pterosaur reptile sarcophagus species teeth themes theropod vertebrate wild wildlife wing