bone-headed dinosaur

Definitions of bone-headed dinosaur
  1. noun
    bipedal herbivorous dinosaurs with bony crowns
    see moresee less
    types:
    pachycephalosaur, pachycephalosaurus
    bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found
    type of:
    ornithischian, ornithischian dinosaur
    herbivorous dinosaur with a pelvis like that of a bird
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