 Natura - nature
 Natura - nature
   actualia - actual entities
 actualia - actual entities
     Mundus Plinius - physical world
 Mundus Plinius - physical world
       naturalia - natural bodies
 naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
 Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
 Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
 Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
 Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
 Clade podiates Cavalier-Smith, 2012
                     Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
 Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
 Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
 Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
 Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
 Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
 Kingdom Animalia Linnaeus, 1758 - animals
                                 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                   Subkingdom Bilateria Hatschek, 1888 - bilaterians
 Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                     Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
 Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                       Infrakingdom Deuterostomia Grobben, 1908
 Infrakingdom Deuterostomia Grobben, 1908
                                         Phylum Chordata Bateson, 1885 - chordates
 Phylum Chordata Bateson, 1885 - chordates
                                           Subphylum Craniata auct.
 Subphylum Craniata auct.
                                             Infraphylum Vertebrata Lamarck, 1801 - vertebrates
 Infraphylum Vertebrata Lamarck, 1801 - vertebrates
                                               Clade Pan-Gnathostomata Downs 2020
 Clade Pan-Gnathostomata Downs 2020
                                                 Superclass Gnathostomataᵀ Gegenbaur, 1874 - jawed vertebrates
 Superclass Gnathostomataᵀ Gegenbaur, 1874 - jawed vertebrates
                                                   [crown] Clade Eugnathostomata
 [crown] Clade Eugnathostomata
                                                     Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
 Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
                                                       Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
 Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
                                                         Clade Pan-Sarcopterygii
 Clade Pan-Sarcopterygii
                                                           Clade Sarcopterygii Romer, 1955
 Clade Sarcopterygii Romer, 1955
                                                             Clade Dipnotetrapodomorpha Nelson, 2006
 Clade Dipnotetrapodomorpha Nelson, 2006
                                                               Clade Rhipidistia Cope, 1887
 Clade Rhipidistia Cope, 1887
                                                                 Clade Tetrapodomorpha Ahlberg, 1991
 Clade Tetrapodomorpha Ahlberg, 1991
                                                                   Clade Osteolepidida Boulenger 1901 [Cloutier & Ahlberg 1996]
 Clade Osteolepidida Boulenger 1901 [Cloutier & Ahlberg 1996]
                                                                     Clade Eotetrapodiformes Coates & Friedman, 2010
 Clade Eotetrapodiformes Coates & Friedman, 2010
                                                                       [crown] Clade Elpistostegalia Camp & Allison, 1961
 [crown] Clade Elpistostegalia Camp & Allison, 1961
                                                                         Clade Stegocephali Cope 1868 [Laurin 2020]
 Clade Stegocephali Cope 1868 [Laurin 2020]
                                                                           Clade Labyrinthodontia Owen 1859 [Laurin 2020]
 Clade Labyrinthodontia Owen 1859 [Laurin 2020]
                                                                             Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
 Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
                                                                               Clade Pan-Amniota Rowe 2004 [Laurin & Smithson 2020]
 Clade Pan-Amniota Rowe 2004 [Laurin & Smithson 2020]
                                                                                 Clade Batrachosauria
 Clade Batrachosauria
                                                                                   Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
 Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
                                                                                     Clade Synapsida Osborn 1903 [Laurin & Reisz 2020]
 Clade Synapsida Osborn 1903 [Laurin & Reisz 2020]
                                                                                       [crown] Clade Therapsida Broom 1905 [Rowe 2020]
 [crown] Clade Therapsida Broom 1905 [Rowe 2020]
                                                                                         Clade Theriodontia Owen, 1876
 Clade Theriodontia Owen, 1876
                                                                                           Clade Eutheriodontia
 Clade Eutheriodontia
                                                                                             Clade Cynodontia Owen 1861 [Rowe 2020]
 Clade Cynodontia Owen 1861 [Rowe 2020]
                                                                                               Clade Epicynodontia Hopson & Kitching 2001
 Clade Epicynodontia Hopson & Kitching 2001
                                                                                                 Clade Eucynodontia Kemp 1982 [Rowe 1993]
 Clade Eucynodontia Kemp 1982 [Rowe 1993]
                                                                                                   Clade Probainognathia Hopson, 1990
 Clade Probainognathia Hopson, 1990
                                                                                                     Clade Mammaliamorpha Rowe 1988 [Rowe 2020]
 Clade Mammaliamorpha Rowe 1988 [Rowe 2020]
                                                                                                       Clade Mammaliaformes Rowe 1988 [Rowe 2020]
 Clade Mammaliaformes Rowe 1988 [Rowe 2020]
                                                                                                         Clade Amphilestheria Gaetano & Rougier 2011
 Clade Amphilestheria Gaetano & Rougier 2011
                                                                                                           Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
 Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
                                                                                                             Class Mammaliaᵀ Linnaeus, 1758 - mammals
 Class Mammaliaᵀ Linnaeus, 1758 - mammals
                                                                                                               Clade Theriimorphaᵀ Rowe 1993
 Clade Theriimorphaᵀ Rowe 1993
                                                                                                                 Clade Theriiformesᵀ Rowe 1988
 Clade Theriiformesᵀ Rowe 1988
                                                                                                                   Clade Trechnotheriaᵀ McKenna 1975
 Clade Trechnotheriaᵀ McKenna 1975
                                                                                                                     Clade Cladotheriaᵀ McKenna 1975
 Clade Cladotheriaᵀ McKenna 1975
                                                                                                                       Clade Zatheriaᵀ McKenna 1975
 Clade Zatheriaᵀ McKenna 1975
                                                                                                                         Clade Prototribosphenidaᵀ Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
 Clade Prototribosphenidaᵀ Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
                                                                                                                           Clade Boreosphenidaᵀ Luo, Cifelli & Kielan-Jaworowska 2001
 Clade Boreosphenidaᵀ Luo, Cifelli & Kielan-Jaworowska 2001
                                                                                                                             Subclass Theriaᵀ Parker & Haswell, 1897
 Subclass Theriaᵀ Parker & Haswell, 1897
                                                                                                                               Infraclass Eutheria Gill, 1872
 Infraclass Eutheria Gill, 1872
                                                                                                                                 Cohort Placentalia Owen, 1837 - placentals
 Cohort Placentalia Owen, 1837 - placentals
                                                                                                                                   Magnorder Boreoeutheria Springer & de Jong, 2001
 Magnorder Boreoeutheria Springer & de Jong, 2001
                                                                                                                                     Superorder Laurasiatheria Waddell, Okada & Hasegawa, 1999
 Superorder Laurasiatheria Waddell, Okada & Hasegawa, 1999
                                                                                                                                       [crown] Clade Scrotifera Waddell, Cao, Hauf & Hasegawa 1999
 [crown] Clade Scrotifera Waddell, Cao, Hauf & Hasegawa 1999
                                                                                                                                         [crown] Clade Fereuungulata Waddell, Cao, Hauf & Hasegawa 1999
 [crown] Clade Fereuungulata Waddell, Cao, Hauf & Hasegawa 1999
                                                                                                                                           [crown] Grandorder Euungulata Waddell, Kishino & Ota, 2001
 [crown] Grandorder Euungulata Waddell, Kishino & Ota, 2001
                                                                                                                                             Order Perissodactyla Owen, 1848 - odd-toed ungulates
 Order Perissodactyla Owen, 1848 - odd-toed ungulates
                                                                                                                                               Suborder Hippomorpha Wood, 1937
 Suborder Hippomorpha Wood, 1937
                                                                                                                                                 Family Equidae Gray, 1821 - horses, zebras, and asses
 Family Equidae Gray, 1821 - horses, zebras, and asses
                                                                                                                                                   01 Genus †Hyracotherium Owen, 1840
 01 Genus †Hyracotherium Owen, 1840
                                                                                                                                                   02 Genus †Orohippus Marsh, 1872
 02 Genus †Orohippus Marsh, 1872
                                                                                                                                                   03 Genus †Epihippus Marsh, 1878
 03 Genus †Epihippus Marsh, 1878
                                                                                                                                                   04 Genus †Haplohippus McGrew, 1953
 04 Genus †Haplohippus McGrew, 1953
                                                                                                                                                   05 Genus †Mesohippus Marsh, 1875
 05 Genus †Mesohippus Marsh, 1875
                                                                                                                                                   06 Genus †Miohippus Marsh, 1874
 06 Genus †Miohippus Marsh, 1874
                                                                                                                                                   07 Genus †Archaeohippus Gidley, 1906
 07 Genus †Archaeohippus Gidley, 1906
                                                                                                                                                   08 Genus †Anchitherium von Meyer, 1844
 08 Genus †Anchitherium von Meyer, 1844
                                                                                                                                                   09 Genus †Kalobatippus Osborn, 1915
 09 Genus †Kalobatippus Osborn, 1915
                                                                                                                                                   10 Genus †Hypohippus Leidy, 1858
 10 Genus †Hypohippus Leidy, 1858
                                                                                                                                                   11 Genus †Sinohippus Zhai, 1962
 11 Genus †Sinohippus Zhai, 1962
                                                                                                                                                   12 Genus †Megahippus McGrew, 1938
 12 Genus †Megahippus McGrew, 1938
                                                                                                                                                   13 Genus †Parahippus Leidy, 1858
 13 Genus †Parahippus Leidy, 1858
                                                                                                                                                   14 Genus †Merychippus Leidy, 1857
 14 Genus †Merychippus Leidy, 1857
                                                                                                                                                   15 Genus †Acritohippus Kelly, 1995
 15 Genus †Acritohippus Kelly, 1995
                                                                                                                                                   16 Genus †Pseudhipparion Ameghino, 1904
 16 Genus †Pseudhipparion Ameghino, 1904
                                                                                                                                                   17 Genus †Nannippus Matthew, 1926
 17 Genus †Nannippus Matthew, 1926
                                                                                                                                                   18 Genus †Neohipparion Gidley, 1903
 18 Genus †Neohipparion Gidley, 1903
                                                                                                                                                   19 Genus †Hipparion de Christol, 1832
 19 Genus †Hipparion de Christol, 1832
                                                                                                                                                   20 Genus †Proboscidipparion Sefve, 1927
 20 Genus †Proboscidipparion Sefve, 1927
                                                                                                                                                   21 Genus †Stylohipparion van Hoepen, 1932
 21 Genus †Stylohipparion van Hoepen, 1932
                                                                                                                                                   22 Genus †Cormohipparion Skinner & MacFadden, 1977
 22 Genus †Cormohipparion Skinner & MacFadden, 1977
                                                                                                                                                   23 Genus †Protohippus Leidy, 1858
 23 Genus †Protohippus Leidy, 1858
                                                                                                                                                   24 Genus †Parapliohippus Kelly, 1995
 24 Genus †Parapliohippus Kelly, 1995
                                                                                                                                                   25 Genus †Heteropliohippus Kelly, 1995
 25 Genus †Heteropliohippus Kelly, 1995
                                                                                                                                                   26 Genus †Pliohippus Marsh, 1874
 26 Genus †Pliohippus Marsh, 1874
                                                                                                                                                   27 Genus †Calippus Matthew & Stirton, 1930
 27 Genus †Calippus Matthew & Stirton, 1930
                                                                                                                                                   28 Genus †Astrohippus Stirton, 1940
 28 Genus †Astrohippus Stirton, 1940
                                                                                                                                                   29 Genus ‡Hippidion Owen, 1869
 29 Genus ‡Hippidion Owen, 1869
                                                                                                                                                   30 Genus †Onohippidium Moreno, 1891
 30 Genus †Onohippidium Moreno, 1891
                                                                                                                                                   31 Genus †Dinohippus Quinn, 1955
 31 Genus †Dinohippus Quinn, 1955
                                                                                                                                                   32 Genus Equusᵀ Linnaeus, 1758 - horses, zebras, and asses
 32 Genus Equusᵀ Linnaeus, 1758 - horses, zebras, and asses