Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Scorpiones Koch, 1837 - scorpions
           Suborder Neoscorpionina Thorell & Lindström, 1885
             Infraorder Orthosternina Pocock, 1911 see Infraorder Orthosterni Pocock, 1911
               Family Urodacidae Pocock, 1893
                 1 Genus Aops Volschenk & Prendini, 2008