#suborder_Osteostraci__Osteostraci__Cephalaspida__suborder_Cephalaspida  extinct group of armored fishlike vertebrates; taxonomy is not clear
  supertype:  animal_order  the order of animals
  member:  osteostracan
  member of:  order_Ostracodermi__Ostracodermi  extinct group of armored jawless vertebrates; taxonomy is not clear
     member of:  superclass_Agnatha__Agnatha  superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
        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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