Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Chelicerata Heymons, 1901 Class Arachnida Lamarck, 1801 Order Pseudoscorpiones De Geer, 1778 Suborder Epiocheirata Harvey, 1992 Superfamily Chthonioidea Daday, 1888 Family Lechytiidae Chamberlin, 1929 see Subfamily Lechytiinae Chamberlin, 1929