Mammaliaformes Rowe 1988
   [crown] Class Mammalia Linnaeus, 1758 - mammals
     Subclass Theriiformes Rowe, 1988 see Division Theriiformes Rowe, 1988
       Infraclass Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg, 1995 see Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
         Superlegion Trechnotheria McKenna, 1975 see Clade Trechnotheria McKenna 1975
           Legion Cladotheria McKenna, 1975 see Clade Cladotheria McKenna 1975
             Sublegion Zatheria McKenna, 1975 see Clade Zatheria McKenna 1975
               Infralegion Tribosphenida McKenna, 1975 see Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001
                 [crown] Supercohort Theria Parker & Haswell, 1897 - therians see Subclass Theria Parker & Haswell, 1897
                   Cohort Placentalia Owen, 1837 - placentals
                     Magnorder Epitheria McKenna, 1975 see Cohort Placentalia Owen, 1837
                       Superorder Preptotheria McKenna, 1975
                         Grandorder Archonta Gregory, 1910
                           Order Primates Linnaeus, 1758 - primates
                             Suborder Euprimates Hoffstetter, 1978 see Clade Euprimates
                               Infraorder Haplorhini Pocock, 1918 see Suborder Haplorhini Pocock, 1918
                                 Parvorder Tarsiiformes Gregory, 1915 see Infraorder Tarsiiformes Gregory, 1915
                                   Superfamily Tarsioidea Gray, 1825
                                     Family †Omomyidae Trouessart, 1879
                                       Subfamily †Omomyinae Trouessart, 1879
                                         Tribe †Washakiini Szalay, 1976
                                           Genus †Yaquius Mason, 1990