Order Opiliones Sundevall, 1833 - harvestmen
   Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen
     Superfamily Ischyropsalidoidea Simon, 1879
       1 Family Ceratolasmatidae Shear, 1986 see Subfamily Ceratolasmatinae Shear, 1986
       2 Family Ischyropsalididae Simon, 1879
       3 Family Sabaconidae Dresco, 1970