#coccygeal_vertebra__coccygealvertebra__caudal_vertebra  one of 4 vertebrae in the human coccyx
  supertype:  #vertebra  one of the bony segments of the spinal column
  part of:  #coccyx__tail_bone  the end of the vertebral column in humans and tailless apes
     part of:  #spinal_column__vertebral_column__vertebralcolumn__spine__backbone__back__rachis  the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"
        part of:  #axial_skeleton__axialskeleton  the part of the skeleton that includes the skull and spinal column and sternum and ribs
           part of:  #endoskeleton  the internal skeleton; bony and cartilaginous structure (especially of vertebrates)
     part of:  #pelvis__pelvic_girdle__pelvic_arch__hip  the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates
        part of:  #appendicular_skeleton  the part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs
           part of:  #endoskeleton  the internal skeleton; bony and cartilaginous structure (especially of vertebrates)

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