Order Primates Linnaeus, 1758 - primates
   Semiorder Euprimates Hoffstetter, 1978 see Clade Euprimates
     Suborder Haplorhini Pocock, 1918
       Hyporder Anthropoidea Mivart, 1864 see Infraorder Simiiformes Haeckel, 1866
         Infraorder Platyrrhini Geoffroy Saint-Hilaire, 1812 [monotypic] see Parvorder Platyrrhini Geoffroy Saint-Hilaire, 1812
           Superfamily Ateloidea Gray, 1825
             Family Atelidae Gray, 1825
               Subfamily Pitheciinae Mivart, 1865
                 Tribe Homunculini Ameghino, 1901 see Family Homunculidae Ameghino, 1901
                   1 Genus Aotus Illiger, 1811 - douroucoulis
                   2 Genus Callicebus Thomas, 1903 - titi monkeys
                   3 Genus †Tremacebus Hershkovitz, 1974
                   4 Genus †Homunculus Ameghino, 1891