#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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