Rioraja

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->

      • Rajidae - Skates->
      • Anacanthobatidae - Smooth skates->
      • Arhynchobatidae - Softnose skates->

        • Arctoraja - Arctoraja->
        • Arhynchobatis - Arhynchobatis->
        • Atlantoraja - Atlantoraja->
        • Bathyraja - Bathyraja->
        • Brochiraja - Brochiraja->
        • Insentiraja - Insentiraja->
        • Irolita - Irolita->
        • Notoraja - Notoraja->
        • Pavoraja - Pavoraja->
        • Psammobatis - Psammobatis->
        • Pseudoraja - Pseudoraja->
        • Rhinoraja - Rhinoraja->
        • Rioraja - Rioraja->
        • Sympterygia - Sympterygia->
      • Gurgesiellidae - Pygmy skates->
    • Orectolobiformes - Carpet shark->
    • Squatiniformes - Angelsharks->
    • Heterodontiformes - Bullhead and horn sharks->
    • Hexanchiformes - Six-gill sharks->
    • Myliobatiformes - Stingrays->
    • Squaliformes - Sleeper and dogfish sharks->
    • Echinorhiniformes - Bramble sharks->
    • Pristiophoriformes - Saw sharks->
  • Holocephali - Chimaeras->
• Agnatha - Jawless fishes->