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(Chordates, Hemichordates) - Coggle Diagram

- - - - Hagfish
      - Lampreys
    - - Paleozoic
      - Mesozoic
      - Elasmobranchs
        
        Squaloids
        
        Galeoids
      - Batoids
        
        Skate
        
        Ray
      - Holocephalians