vertebrates Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
Count: [†*] †2c;6o;16f;39g;146s
   Class †Cephalaspidomorphi Kiaer & Stensiö, 1920 see Class Osteostraci Lankester, 1868
  Count: [†*] †2o;6f;15g;64s
     Subclass †Osteostraci Lankester, 1868 see Class Osteostraci Lankester, 1868
    Count: [†*] †2o;6f;15g;64s
       †"Cornuata"
      Count: [†*] †1g;2s
         1 Genus †Wladysagitta Voichyshyn, 2006, incertae sedis
        Count: [†*] †2s [22 Mar 2024]