Cookie cutter shark  (Isistius brasiliensis)

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Taxonomy of Fishes

• Osteichthyes - Bony fishes->
• Chondrichthyes - Cartilaginous fishes->

  • Elasmobranchii - Sharks and Rays->

    • Lamniformes - Mackerel sharks->
    • Carcharhiniformes - Ground sharks->
    • Rhinopristiformes - Shovelnose rays->
    • Torpediniformes - Electric rays->
    • Rajiformes - Skates and rays->
    • Orectolobiformes - Carpet shark->
    • Squatiniformes - Angelsharks->
    • Heterodontiformes - Bullhead and horn sharks->
    • Hexanchiformes - Six-gill sharks->
    • Myliobatiformes - Stingrays->
    • Squaliformes - Sleeper and dogfish sharks->

      • Squalidae - Dogfish sharks->
      • Somniosidae - Sleeper sharks->
      • Etmopteridae - Lantern sharks->
      • Centrophoridae - Gulper sharks->
      • Dalatiidae - Sleeper sharks->

        • Dalatias - Dalatias->
        • Euprotomicroides - Euprotomicroides->
        • Euprotomicrus - Euprotomicrus->
        • Heteroscymnoides - Heteroscymnoides->
        • Isistius - Isistius->

          • Cookie cutter shark (Isistius brasiliensis)
          • Largetooth cookiecutter shark (Isistius plutodus)
        • Mollisquama - Mollisquama->
        • Squaliolus - Squaliolus->
      • Oxynotidae - Rough sharks->
    • Echinorhiniformes - Bramble sharks->
    • Pristiophoriformes - Saw sharks->
  • Holocephali - Chimaeras->
• Agnatha - Jawless fishes->