Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade dorsates Cavalier-Smith, 2021
Clade podiates Cavalier-Smith, 2012
[crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
[crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
[crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
Kingdom Animalia Linnaeus, 1758 - animals
Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
Subkingdom Bilateria Hatschek, 1888 - bilaterians
Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
Infrakingdom Deuterostomia Grobben, 1908
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Myopterygii - myopterygians
Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
Grade Teleostomi Bonaparte, 1836
Euteleostomi - bony vertebrates
Clade Sarcopterygii Romer, 1955
[crown] Rhipidistia Cope, 1887
Clade Tetrapodomorpha Ahlberg, 1991
Clade Osteolepidimorpha
Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
[crown] Clade Neotetrapoda
Clade Reptiliomorpha Säve-Söderbergh, 1934
Batrachosauria
[crown] Clade Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
Clade Synapsida Osborn 1903 [Gauthier et al. 1989]
Clade Therapsida Broom, 1905
Clade Theriodontia
Clade Eutheriodontia
Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
Clade Epicynodontia Hopson & Kitching 2001
Clade Eucynodontia Kemp 1982 [Rowe 1993]
Clade Probainognathia Hopson, 1990
Clade Mammaliamorpha Rowe 1988
Clade Mammaliaformesᵀ Rowe 1988
Clade Amphilestheria Gaetano & Rougier 2011
Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
[crown] Class Mammaliaᵀ Linnaeus, 1758 - mammals
Clade Theriimorphaᵀ Rowe 1993
Clade Theriiformesᵀ Rowe 1988
Clade Trechnotheriaᵀ McKenna 1975
Clade Cladotheriaᵀ McKenna 1975
Clade Zatheriaᵀ McKenna 1975
Clade Prototribosphenidaᵀ Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
Clade Boreosphenidaᵀ Luo, Cifelli & Kielan-Jaworowska 2001
[crown] Subclass Theriaᵀ Parker & Haswell, 1897
Infraclass Eutheria Gill, 1872
[crown] Cohort Placentalia Owen, 1837 - placentals
[crown] Magnorder Boreoeutheria Springer & de Jong, 2001
[crown] Superorder Laurasiatheria Waddell, Okada & Hasegawa, 1999
[crown] Clade Scrotifera Waddell, Cao, Hauf & Hasegawa 1999
[crown] Clade Fereuungulata Waddell, Cao, Hauf & Hasegawa 1999
[crown] Grandorder Euungulata Waddell, Kishino & Ota, 2001
Order Perissodactyla Owen, 1848 - odd-toed ungulates
Suborder Hippomorpha Wood, 1937
Family Equidae Gray, 1821 - horses, zebras, and asses
01 Genus †Hyracotherium Owen, 1840
02 Genus †Orohippus Marsh, 1872
03 Genus †Epihippus Marsh, 1878
04 Genus †Haplohippus McGrew, 1953
05 Genus †Mesohippus Marsh, 1875
06 Genus †Miohippus Marsh, 1874
07 Genus †Archaeohippus Gidley, 1906
08 Genus †Anchitherium von Meyer, 1844
09 Genus †Kalobatippus Osborn, 1915
10 Genus †Hypohippus Leidy, 1858
11 Genus †Sinohippus Zhai, 1962
12 Genus †Megahippus McGrew, 1938
13 Genus †Parahippus Leidy, 1858
14 Genus †Merychippus Leidy, 1857
15 Genus †Acritohippus Kelly, 1995
16 Genus †Pseudhipparion Ameghino, 1904
17 Genus †Nannippus Matthew, 1926
18 Genus †Neohipparion Gidley, 1903
19 Genus †Hipparion de Christol, 1832
20 Genus †Proboscidipparion Sefve, 1927
21 Genus †Stylohipparion van Hoepen, 1932
22 Genus †Cormohipparion Skinner & MacFadden, 1977
23 Genus †Protohippus Leidy, 1858
24 Genus †Parapliohippus Kelly, 1995
25 Genus †Heteropliohippus Kelly, 1995
26 Genus †Pliohippus Marsh, 1874
27 Genus †Calippus Matthew & Stirton, 1930
28 Genus †Astrohippus Stirton, 1940
29 Genus ‡Hippidion Owen, 1869
30 Genus †Onohippidium Moreno, 1891
31 Genus †Dinohippus Quinn, 1955
32 Genus Equusᵀ Linnaeus, 1758 - horses, zebras, and asses