[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Status: extant
   Kingdom Animalia Linnaeus, 1758 - animals
  Status: extant
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
    Status: extant
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
      Status: extant
         Subdivision Deuterostomia Grobben, 1908 see Infrakingdom Deuterostomia Grobben, 1908
        Status: extant
           Phylum Chordata Bateson, 1885 - chordates
          Status: extant
             Subphylum Vertebrata Cuvier, 1812 - vertebrates
            Status: extant
               Superclass Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
              Status: extant
                 Class Reptilia Linnaeus, 1758 - reptiles
                Status: extant
                   Subclass †Ichthyopterygia Blainville, 1835 - ichthyopterygians
                  Status: fossil
                     Order †Ichthyosauria Blainville, 1835
                    Status: fossil
                       Genus †Ophthalmosaurus Seeley, 1874
                      Status: fossil