#superclass_Agnatha__Agnatha  superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
  supertype:  class__clas  (biology) a taxonomic group containing one or more orders
  member:  jawless_vertebrate  order_Ostracodermi  order_Anaspida  order_Conodonta  order_Cyclostomata
  member of:  subphylum_Vertebrata__Vertebrata__Craniata__subphylum_Craniata  fishes; amphibians; reptiles; birds; mammals
     member of:  phylum_Chordata__Chordata  comprises true vertebrates and animals having a notochord
        member of:  kingdom_Animalia__Animalia__animal_kingdom  taxonomic kingdom comprising all living or extinct animals

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