#parietal_bone  either of two skull bones between the frontal and occipital bones and forming the top and sides of the cranium
  supertype:  membrane_bone  any bone that develops within membranous tissue without previous cartilage formation; e.g. the clavicle and bones of the skull
  part of:  cranium
  part:  entomion  the craniometric point at the tip of the mastoid angle of the parietal bone
  part:  sphenion  the anterior tip of the parietal bone

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