Mammaliaformes Rowe 1988
Ref: M.C. McKenna & S.K. Bell, 1997: 511; Count: [g†g] 1c;24o;125f;1081g; ‡1o;6f;43g; †24o;301f;4057g;1s
[crown] Class Mammalia Linnaeus, 1758 - mammals
Ref: M.C. McKenna & S.K. Bell, 1997: 35; Count: [g†g] 24o;125f;1081g; ‡1o;6f;43g; †21o;294f;4034g;1s
Subclass Theriiformes Rowe, 1988
see Division Theriiformes Rowe, 1988
Ref: M.C. McKenna & S.K. Bell, 1997: 36 [new rank]; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †21o;294f;4031g;1s
Infraclass Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg, 1995
see Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
Ref: M.C. McKenna & S.K. Bell, 1997: 43 [new rank]; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †20o;277f;3936g;1s
Superlegion Trechnotheria McKenna, 1975
see Clade Trechnotheria McKenna 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 43 [new position]; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †20o;274f;3932g
Legion Cladotheria McKenna, 1975
see Clade Cladotheria McKenna 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 45; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †18o;269f;3910g
Sublegion Zatheria McKenna, 1975
see Clade Zatheria McKenna 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 48; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;262f;3884g
Infralegion Tribosphenida McKenna, 1975
see Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001
Ref: M.C. McKenna & S.K. Bell, 1997: 48 [new rank]; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;258f;3877g
[crown] Supercohort Theria Parker & Haswell, 1897 - therians
see Subclass Theria Parker & Haswell, 1897
Ref: M.C. McKenna & S.K. Bell, 1997: 49 [new rank]; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;256f;3874g
Cohort Placentalia Owen, 1837 - placentals
Ref: M.C. McKenna & S.K. Bell, 1997: 80 [new rank]; Count: [g†g] 17o;108f;1005g; ‡1o;5f;40g; †12o;218f;3610g
Magnorder Epitheria McKenna, 1975
see Cohort Placentalia Owen, 1837
Ref: M.C. McKenna & S.K. Bell, 1997: 102 [new rank]; Count: [g†g] 15o;103f;992g; ‡4f;34g; †12o;208f;3390g
Superorder Preptotheria McKenna, 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 104 [new position]; Count: [g†g] 15o;103f;992g; ‡4f;34g; †12o;204f;3358g
Grandorder Ungulata Linnaeus, 1766
Ref: M.C. McKenna & S.K. Bell, 1997: 357; Count: [g†g] 5o;29f;136g; ‡1f;9g; †9o;106f;1533g
Mirorder Altungulata Prothero & Schoch, 1989
Ref: M.C. McKenna & S.K. Bell, 1997: 468 [new rank]; Count: [g†g] 2o;7f;13g; ‡1f;7g; †25f;332g
Order Uranotheria McKenna & Bell, 1997
see Grandorder Paenungulata Simpson, 1945
Ref: M.C. McKenna & S.K. Bell, 1997: 490 [new taxon]; Count: [g†g] 4f;7g; ‡1f;4g; †14f;96g
Suborder Tethytheria McKenna, 1975
see Mirorder Tethytheria McKenna, 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 492 [new rank]; Count: [g†g] 3f;4g; ‡1f;4g; †11f;73g
Infraorder Behemota McKenna, Bell & Shoshani, 1997
see Clade Behemota McKenna, Bell & Shoshani 1997
Ref: M.C. McKenna & S.K. Bell, 1997: 497 [new taxon]; Count: [g†g] 1f;2g; ‡1f;3g; †10f;45g
Parvorder Proboscidea Owen, 1859
see Order Proboscidea Owen, 1859
Ref: M.C. McKenna & S.K. Bell, 1997: 497 [new rank]; Count: [g†g] 1f;2g; ‡1f;3g; †9f;39g
Superfamily Elephantoidea Gray, 1821
Ref: M.C. McKenna & S.K. Bell, 1997: 500 [new position]; Count: [g†g] 1f;2g; ‡2g; †1f;23g
Family †Gomphotheriidae Hay, 1922 - gomphotheres
Ref: M.C. McKenna & S.K. Bell, 1997: 500; Count: [†g] †14g
Subfamily †Gomphotheriinae Hay, 1922
Ref: M.C. McKenna & S.K. Bell, 1997: 500; Count: [†g] †6g
Tribe †Amebelodontini Barbour, 1927
Ref: M.C. McKenna & S.K. Bell, 1997: 501 [new rank]; Count: [†g] †5g
Subtribe †Amebelodontina Barbour, 1927 - shovel-tuskers
Ref: M.C. McKenna & S.K. Bell, 1997: 501 [new rank]; Count: [†g] †3g
Genus †Serbelodon Frick, 1933
Ref: M.C. McKenna & S.K. Bell, 1997: 501 [new position]; Count: -