Clade Mammaliaformes Rowe 1988 [Rowe 1988]
   [crown] Class Mammalia Linnaeus, 1758 - mammals
     Subclass Theriiformes (Rowe, 1988) M.C. McKenna & S.K. Bell, 1997 see Division Theriiformes
       Infraclass Holotheria (Wible et al., 1995) M.C. McKenna & S.K. Bell, 1997 see [unranked] Holotheria
         Superlegion Trechnotheria McKenna, 1975 see [unranked] Trechnotheria McKenna, 1975
           Legion Cladotheria McKenna, 1975 see [unranked] Cladotheria McKenna, 1975
             Sublegion Zatheria McKenna, 1975 see [unranked] Zatheria McKenna, 1975
               Infralegion Tribosphenida McKenna, 1975 see Sublegion Boreosphenida
                 Supercohort Theria (Parker & Haswell, 1897) M.C. McKenna & S.K. Bell, 1997 - therians see [unranked] Theria
                   Cohort Placentalia (Owen, 1837) M.C. McKenna & S.K. Bell, 1997 - placentals
                     Magnorder Epitheria (McKenna, 1975) M.C. McKenna & S.K. Bell, 1997 see Cohort Placentalia (Owen, 1837) M.C. McKenna & S.K. Bell, 1997
                       Superorder Preptotheria (McKenna, 1975) McKenna, 1993
                         Grandorder Archonta (Gregory, 1910) McKenna, 1975 see Superorder Archonta Gregory, 1910
                           Order Primates Linnaeus, 1758 - primates
                             Suborder Euprimates Hoffstetter, 1978
                               Infraorder Haplorhini (Pocock, 1918) M.C. McKenna & S.K. Bell, 1997
                                 Parvorder Anthropoidea (Mivart, 1864) M.C. McKenna & S.K. Bell, 1997
                                   Family †Parapithecidae Schlosser, 1911
                                     Subfamily †Oreopithecinae (Schwalbe, 1915) M.C. McKenna & S.K. Bell, 1997 see Family Oreopithecidae Schwalbe, 1915
                                       Genus †Nyanzapithecus Harrison, 1987