Sixgill stingrays (Hexatrygonidae)
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General data

Main name: Sixgill stingrays

Classification

Order: Myliobatiformes - Stingrays
Class: Elasmobranchii - Sharks and Rays
Superclass: Chondrichthyes - Cartilaginous fishes

Genera

Hexatrygon

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->
    
    Dasyatidae - Stingrays->
    
    Mobulidae - Manta rays->
    
    Potamotrygonidae - Southamerican freshwater stingrays->
    
    Gymnuridae - Butterfly rays->
    
    Myliobatidae - Eagle ray->
    
    Urotrygonidae - American round stingrays->
    
    Aetobatidae - Pacific eagle rays->
    
    Hexatrygonidae - Sixgill stingrays->
    
    Plesiobatidae - Deepwater stingrays->
    
    Rhinopteridae - Cownose rays->
    
    Urolophidae - Round rays->
    
    Zanobatidae - Panrays->
  - Squaliformes - Sleeper and dogfish sharks->
  - Echinorhiniformes - Bramble sharks->
  - Pristiophoriformes - Saw sharks->
- Holocephali - Chimaeras->
Agnatha - Jawless fishes->