[6] ). Saurischia includes the theropods (bipedal and mostly carnivores, except for birds) and sauropodomorphs (long-necked quadrupedal herbivores ). By contrast, ornithischians ('bird-hipped', from the Greek ornitheios ( ορνιθειος ) meaning 'of a bird' and ischion ( ισχιον ) meaning 'hip joint') had a pelvis that superficially resembled a bird's pelvis: