Infraphylum [Gnathostomata] Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
Count: -
   Megaclass Osteichthyes Huxley, 1880 see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
  Count: [*] 4c;72o;513f;1g [10 May 2025]
     Superclass Sarcopterygii Romer, 1955
    Count: [*] 2c;2o;4f [10 May 2025]
       Class Dipnotetrapodomorpha see [unranked] Dipnotetrapodomorpha Nelson, 2006
      Count: [*] 1o;3f
         Subclass Dipnomorpha Ahlberg, 1991 [monotypic] see [unranked] Dipnomorpha Ahlberg, 1991
        Count: [*] 1o;3f [10 May 2025]
           Superorder Ceratodontae [monotypic] see Superorder Dipnoi Müller, 1844
          Count: [*] 1o;3f [10 May 2025]
             Order Ceratodontiformes Berg, 1940 - living lungfishes and their fossil relatives
            Count: [*] 3f [10 May 2025]
               1 Suborder Ceratodontoidei Vorobyeva et al., 1964 [monotypic]
              Count: [*] 1f [10 May 2025]
               2 Suborder Lepidosirenoidei
              Count: [*] 2f [10 May 2025]