Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Opiliones Sundevall, 1833 - harvestmen
           Suborder Laniatores Thorell, 1876 - armored harvestmen
             Infraorder Grassatores Kury, 2002
               Superfamily Assamioidea Sørensen, 1884
                 Family Pyramidopidae Sharma, Prieto & Giribet, 2011