living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Reptilia Linnaeus, 1758 - reptiles
               Subclass Lepidosauria Duméril & Bibron, 1839
                 Order Squamata Oppel, 1811
                   Suborder Serpentes Linnaeus, 1758 - snakes
                     Superfamily Colubroidea Oppel, 1811
                       Family Colubridae Oppel, 1811 - colubrids
                         1 Genus Coluber Linnaeus, 1758
                         2 Genus Natrix Laurenti, 1768
                         3 Subfamily Lycodontinae see Subfamily Colubrinae Oppel, 1811
                         4 Subfamily Aparallactinae - mole vipers
                         5 Subfamily Homalopsinae (Cope, 1864) see Family Homalopsidae Jan, 1863
                         6 Subfamily Xenodontinae (Bonaparte, 1845) see Subfamily Dipsadinae Guenther, 1858
                         7 Subfamily Micrurinae see Family Elapidae Boie, 1827
                         8 Subfamily Colubrinae Oppel, 1811
                         9 Subfamily Natricinae Bonaparte, 1838 - water snakes