Class [Mammalia] Linnaeus, 1758 - mammals
   Order Primates Linnaeus, 1758 - primates
     Suborder Prosimii Illiger, 1811 see Infraorder Strepsirrhini "Geoffroy Saint-Hilaire, 1812"
       Infraorder Lemuriformes Gregory, 1915
         Superfamily †Adapoidea Trouessart, 1879 see Infraorder Adapiformes Hoffstetter, 1977
           Family †Sivaladapidae Thomas & Verma, 1979
             Subfamily †Sivaladapinae Thomas & Verma, 1979
               Genus †Wailekia Ducrocq, Jaeger, Chaimanee & Suteethorn, 1995