A cikin binciken su na 2007, sun bayyana cewa tsarin occiput da cervical vertebrae zai iyakance motsi na sama da ƙasa na wuyansa da juyawa na kwanyar. Dangane da wannan binciken na biomechanical, ƙungiyar ta kammala cewa kai da muzzle sun saba da fuskantar 67 ° ƙasa da kusa da matakin ƙasa, a matsayin daidaitawa don ƙwallon ƙafa na ƙasa. Wannan ba kamar yadda sauran sauropods suka dawo da kawunansu ba, tare da kawunansu na zamani da aka riƙe a kwance.
tsarin occiput da kuma cervical vertebrae