#subclass_Elasmobranchii__Elasmobranchii__Selachii__subclass_Selachii  sharks; rays; dogfishes; skates
  supertype:  #class__clas  (biology) a taxonomic group containing one or more orders
  member:  #elasmobranch  #family_Hexanchidae  #family_Lamnidae  #family_Cetorhinidae  #family_Alopiidae  #family_Orectolobidae  #family_Carchariidae  #family_Rhincodontidae  #family_Scyliorhinidae  #family_Carcharhinidae  #family_Triakidae  #family_Squalidae  #family_Sphyrnidae  #family_Squatinidae  #order_Torpediniformes  #order_Rajiformes
  member of:  #class_Chondrichthyes__Chondrichthyes  cartilaginous fishes
     member of:  #subphylum_Vertebrata__Vertebrata__Craniata__subphylum_Craniata  fishes; amphibians; reptiles; birds; mammals
        member of:  #phylum_Chordata__Chordata  comprises true vertebrates and animals having a notochord
           member of:  #kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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