Order Pseudoscorpiones De Geer, 1778 Suborder Heterosphyronida Chamberlin, 1929 [monotypic] Superfamily Chthonioidea Daday, 1888 Family Chthoniidae Daday, 1888 Subfamily Tridenchthoniinae Balzan, 1892 Tribe Verrucadithini Chamberlin, 1929