Mammaliaformes Rowe 1988
Ref: M.C. McKenna & S.K. Bell, 1997: 511
[crown] Class Mammalia Linnaeus, 1758 - mammals
Ref: M.C. McKenna & S.K. Bell, 1997: 35
Subclass Theriiformes Rowe, 1988
see Division Theriiformes Rowe, 1988
Ref: M.C. McKenna & S.K. Bell, 1997: 36 [new rank]
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]
Superlegion Trechnotheria McKenna, 1975
see Clade Trechnotheria McKenna 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 43 [new position]
Legion Cladotheria McKenna, 1975
see Clade Cladotheria McKenna 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 45
Sublegion Zatheria McKenna, 1975
see Clade Zatheria McKenna 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 48
Infralegion Tribosphenida McKenna, 1975
see Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001
Ref: M.C. McKenna & S.K. Bell, 1997: 48 [new rank]
[crown] Supercohort Theria Parker & Haswell, 1897 - therians
see Subclass Theria Parker & Haswell, 1897
Ref: M.C. McKenna & S.K. Bell, 1997: 49 [new rank]
Cohort Placentalia Owen, 1837 - placentals
Ref: M.C. McKenna & S.K. Bell, 1997: 80 [new rank]
Magnorder Epitheria McKenna, 1975
see Cohort Placentalia Owen, 1837
Ref: M.C. McKenna & S.K. Bell, 1997: 102 [new rank]
Superorder Preptotheria McKenna, 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 104 [new position]
Grandorder Ungulata Linnaeus, 1766
Ref: M.C. McKenna & S.K. Bell, 1997: 357
Mirorder Eparctocyona McKenna, 1975
Ref: M.C. McKenna & S.K. Bell, 1997: 358
Order Cete Linnaeus, 1758
see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
Ref: M.C. McKenna & S.K. Bell, 1997: 366
Suborder Cetacea Brisson, 1762 - cetaceans
see Infraorder Cetacea Brisson, 1762
Ref: M.C. McKenna & S.K. Bell, 1997: 368 [new rank]
Infraorder Autoceta Haeckel, 1866
Ref: M.C. McKenna & S.K. Bell, 1997: 371 [new position]
01 Genus †Iniopsis Lydekker, 1893
Ref: M.C. McKenna & S.K. Bell, 1997: 371
02 Genus †Microzeuglodon Stromer, 1903
Ref: M.C. McKenna & S.K. Bell, 1997: 371
03 Genus †Oligodelphis Aslanova & Mchedlidze, 1976
Ref: M.C. McKenna & S.K. Bell, 1997: 371
04 Genus †Mirocetus Mchedlidze, 1970
Ref: M.C. McKenna & S.K. Bell, 1997: 371
05 Genus †Atropatenocetus Aslanova, 1977
Ref: M.C. McKenna & S.K. Bell, 1997: 371
06 Genus †Kharthlidelphis Mchedlidze & Pilleri, 1988
Ref: M.C. McKenna & S.K. Bell, 1997: 371
07 Genus †Archaeodelphis Allen, 1921
Ref: M.C. McKenna & S.K. Bell, 1997: 371
08 Genus †Xenorophus Kellogg, 1923
Ref: M.C. McKenna & S.K. Bell, 1997: 371
09 Genus †Ceterhinops Leidy, 1877
Ref: M.C. McKenna & S.K. Bell, 1997: 371
10 Genus †Miodelphis Wilson, 1935
Ref: M.C. McKenna & S.K. Bell, 1997: 371
11 Genus †Protodelphinus Dal Piaz, 1922
Ref: M.C. McKenna & S.K. Bell, 1997: 371
12 Genus †Scaptodon Chapman, 1918, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 371
13 Genus †Sinanodelphis Makiyama, 1936
Ref: M.C. McKenna & S.K. Bell, 1997: 371
14 Genus †Imerodelphis Mchedlidze, 1959
Ref: M.C. McKenna & S.K. Bell, 1997: 371
15 Genus †Stereodelphis Gervais, 1848, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 371
16 Genus †Macrochirifer Brandt, 1874, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 371
17 Genus †Delphinopsis Müller, 1853, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 371
18 Genus †Heterodelphis Brandt, 1873
Ref: M.C. McKenna & S.K. Bell, 1997: 372
19 Genus †Phocageneus Leidy, 1869
Ref: M.C. McKenna & S.K. Bell, 1997: 372
20 Genus †Hadrodelphis Kellogg, 1966
Ref: M.C. McKenna & S.K. Bell, 1997: 372
21 Genus †Nannolithax Kellogg, 1931
Ref: M.C. McKenna & S.K. Bell, 1997: 372
22 Genus †Platylithax Kellogg, 1931
Ref: M.C. McKenna & S.K. Bell, 1997: 372
23 Genus †Agabelus Cope, 1875, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
24 Genus †Priscodelphinus Leidy, 1851, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
25 Genus †Ixacanthus Cope, 1868, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
26 Genus †Tretosphys Cope, 1868, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
27 Genus †Belosphys Cope, 1875, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
28 Genus †Pelodelphis Kellogg, 1955, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
29 Genus †Araeodelphis Kellogg, 1957
Ref: M.C. McKenna & S.K. Bell, 1997: 372
30 Genus †Graphiodon Leidy, 1870, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
31 Genus †Oedolithax Kellogg, 1931
Ref: M.C. McKenna & S.K. Bell, 1997: 372
32 Genus †Lamprolithax Kellogg, 1931
Ref: M.C. McKenna & S.K. Bell, 1997: 372
33 Genus †Loxolithax Kellogg, 1931
Ref: M.C. McKenna & S.K. Bell, 1997: 372
34 Genus †Delphinavus Lull, 1914
Ref: M.C. McKenna & S.K. Bell, 1997: 372
35 Genus †Hesperocetus True, 1912, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
36 Genus †Lonchodelphis Allen, 1924, nom. dub.
Ref: M.C. McKenna & S.K. Bell, 1997: 372
37 Genus †Incacetus Colbert, 1944
Ref: M.C. McKenna & S.K. Bell, 1997: 373
38 Family †Agorophiidae Abel, 1913
Ref: M.C. McKenna & S.K. Bell, 1997: 373
39 Superfamily †Squalodontoidea Brandt, 1873
see Superfamily Platanistoidea Gray, 1846
Ref: M.C. McKenna & S.K. Bell, 1997: 373
40 Parvorder Mysticeti Cope, 1891 - whalebone whales
Ref: M.C. McKenna & S.K. Bell, 1997: 374 [new rank]
41 Parvorder Odontoceti Flower, 1867 - toothed whales
Ref: M.C. McKenna & S.K. Bell, 1997: 379 [new rank]