Order Pseudoscorpiones De Geer, 1778
Count: [f†f] 25f; †1f [8 Jan 2021]
   Suborder Heterosphyronida Chamberlin, 1929 [monotypic]
  Count: [f] 2f [8 Jan 2021]
     Superfamily Chthonioidea Daday, 1889
    Count: [f] 2f [8 Jan 2021]
       Family Chthoniidae Daday, 1889
      Count: -
         1 Subfamily [Lechytiinae] Chamberlin, 1929
        Count: -
         2 Subfamily Tridenchthoniinae Balzan, 1892
        Count: -