#subclass_Holocephali__Holocephali  chimaeras and extinct forms
  supertype:  #class__clas  (biology) a taxonomic group containing one or more orders
  member of:  #class_Chondrichthyes
  member:  #holocephalan  fish with high compressed head and a body tapering off into a long tail
  member:  #family_Chimaeridae__Chimaeridae  a family of Holocephali
     member:  #genus_Chimaera  type genus of the Chimaeridae
        member:  #chimaera  smooth-skinned deep-sea fish with a tapering body and long threadlike tail

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