Frequently shortened to archosaur . Bed a distinct rock unit in a stratigraphic sequence. A Jurassic sauropod found in North America. A Triassic theropod found in North America. Modern human cranial capacities average about 1500cc for males and 1300cc for smaller bodied females.
All dinosaurs have a hip socket that has a hole through it.
Shortened to dinosaur . A Jurassic sauropod found in North America. A Cretaceous nodosaur found in North America. A Cretaceous hadrosaur found in North America. A Cretaceous ankylosaur found in North America.