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 neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
Clade neozoa Cavalier-Smith 1993
Clade scotokaryotes Cavalier-Smith 2000
Clade podiates Cavalier-Smith 2012
[crown] Clade Amorphea Adl et al. 2012
[crown] Clade Opisthokonta Cavalier-Smith 1987
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 Goodrich, 1930
[crown] Clade Neotetrapoda
Clade Reptiliomorpha Säve-Söderbergh, 1934
Batrachosauria
Clade Amniota Haeckel, 1866 - amniotes
Clade Synapsida Osborn, 1903
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 Atlantogenata Waddell, Cao, Hasegawa & Mindell, 1999
[crown] Superorder Afrotheria Stanhope, Waddell, Madsen, de Jong, Hedges, Cleven, Kao & Springer, 1998
[crown] Grandorder Paenungulata Simpson, 1945
Order Sirenia Gill, 1872 - sea cows
Family Dugongidae Gray, 1821 - dugong and sea cow
Subfamily ‡Hydrodamalinae Palmer, 1895
Genus †Metaxytherium Christol, 1840
†Metaxytherium aquitanae
†Metaxytherium floridanum Hay, 1922
†Metaxytherium kachchhensis
†Metaxytherium krahuletzi Depéret, 1895
†Metaxytherium medium (Desmarest, 1822)
†Metaxytherium ossivallense (Simpson, 1932)
†Metaxytherium studeri (von Meyer, 1838)