Craniata is a type of chordate animal group that contains vertebrates (vertebrata) and hagfish (Hyperotreti). It is defined as meaning all animals with skulls, from whence the name.

• Hyperotreti (or Myxini)
  • Myxiniformes
    • Myxinidae
• Vertebrata
  • Gnathostomata
    • Chondrichthyes
    • Teleostomi
  • Hyperoartia
    • Petromyzontiformes