“bipedal dinosaur”簡單造句，bipedal dinosaur造句子

large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; Upper Cretaceous; North America.

After studying 14 different species the researchers concluded that simply walking and running required too much energy for larger bipedal dinosaurs to have been cold-blooded.

massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and North Africa; early Cretaceous.

large carnivorous bipedal dinosaur having huge claws.