[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryotes see Domain Eukaryota Chatton, 1925
     Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
       Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
         Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
           Chordata Bateson, 1885 - chordates
             Vertebrata Cuvier, 1812 - vertebrates
               Gnathostomata Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
                 Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
                   Sarcopterygii Romer, 1955 see Clade Sarcopterygii Romer, 1955
                     Crossopterygii Huxley, 1861
                       Tetrapodomorpha Ahlberg, 1991 see [unranked] Tetrapodomorpha Ahlberg, 1991
                         Osteolepidida Boulenger, 1901 see [unranked] Osteolepidimorpha
                           Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
                             Unnamed
                               Reptiliomorpha Säve-Söderbergh, 1934 see [unranked] Reptiliomorpha Säve-Söderbergh, 1934
                                 Batrachosauria
                                   Amniota Haeckel, 1866 see Clade Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]
                                     Synapsida Osborn, 1903 see Clade Synapsida Osborn 1903 [Gauthier et al. 1989]
                                       Therapsida Broom, 1905 see [unranked] Therapsida Broom, 1905
                                         Theriodontia
                                           Cynodontia Owen, 1861 - cynodonts see Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
                                             Eucynodontia Kemp 1982 [Rowe 1993]
                                               Mammalia Linnaeus, 1758 - mammals
                                                 Mammaliaformes Rowe, 1988 see Clade Mammaliaformes Rowe 1988
                                                   Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg, 1995 see Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
                                                     Theriimorpha see Clade Theriimorpha Rowe 1993
                                                       Theriiformes Rowe, 1988 see Clade Theriiformes Rowe 1988
                                                         Trechnotheria McKenna, 1975 see Clade Trechnotheria McKenna 1975
                                                           Cladotheria McKenna, 1975 see Clade Cladotheria McKenna 1975
                                                             Prototribosphenida Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
                                                               1 †Vincelestes Bonaparte, 1986
                                                               2 Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 see Clade Boreosphenida Luo, Cifelli & Kielan-Jaworowska 2001