allosaurus ancient greek animal ankylosauria antorbital fenestra apatosaurus archosaur arizona binomial nomenclature biological classification bone wars callovian camarasaurus ceratosaurus china chordate clade colorado como bluff denver museum of nature and science digital object identifier dimetrodon dinosaur diplodocus east africa emausaurus england femur fibula field museum of natural history france gastrolith genus germany glycogen hesperosaurus holotype hoplitosaurus huayangosaurus iguana kenneth carpenter kentrosaurus kimmeridgian king kong late jurassic lexovisaurus loricatosaurus madagascar majungasaurus mammal morrison formation nervous system nomen dubium north america ornithischia osteomyelitis othniel charles marsh ounce oxford clay paleontology pelycosaur portugal quadruped reptile roof shingle sauropoda scelidosaurus scutellosaurus senckenberg museum skull species spinosaurus stegosauria stegosaurus in popular culture stratum surface area thagomizer thermoregulation thyreophora tibia tile tithonian triceratops type genus type species tyrannosaurus vertebra wikibooks wikimedia commons wikispecies wuerhosaurus wyoming