Order Primates Linnaeus, 1758 - primates
   Semiorder Strepsirrhini see Suborder Strepsirrhini Geoffroy Saint-Hilaire, 1812
     Suborder †Adapiformes Hoffstetter, 1977 [monotypic] see Infraorder Adapiformes Hoffstetter, 1977
       Superfamily †Adapoidea Trouessart, 1879 see Infraorder Adapiformes Hoffstetter, 1977
         Family †Sivaladapidae Thomas & Verma, 1979
           Subfamily †Hoanghoniinae Gingerich et al., 1994
             1 Genus †Hoanghonius Zdansky, 1930
             2 Genus †Rencunius Gingerich, Holroyd & Ciochon, 1994
             3 Genus †Wailekia Ducrocq, Jaeger, Chaimanee & Suteethorn, 1995
             4 Genus †Lushius Chow, 1961