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
Genus †Wailekia Ducrocq, Jaeger, Chaimanee & Suteethorn, 1995