#family_Ceratodontidae__Ceratodontidae  lungfishes having hornlike ridges on the teeth
  supertype:  fish_family  any of various families of fish
  member:  genus_Ceratodus  genus_Neoceratodus
  member of:  subclass_Dipnoi__Dipnoi  bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii
     member of:  class_Osteichthyes__Osteichthyes  a class of fish having a skeleton composed of bone in addition to cartilage
        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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