Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Chelicerata Heymons, 1901 Class Arachnida Lamarck, 1801 Order Pseudoscorpiones De Geer, 1778 Suborder Iocheirata Harvey, 1992 Superfamily Sternophoroidea Chamberlin, 1923 [monotypic] 1 Family Sternophoridae Chamberlin, 1923