life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: -
   Arthropoda Siebold, 1848 - arthropods
  Count: -
     Class Arachnida Lamarck, 1801
    Count: -
       Micrura Hansen & Sørensen, 1904
      Count: -
         Megoperculata Börner, 1902
        Count: -
           Order Palpigradi Thorell, 1888 - palpigrades
          Count: [f] 2f;3g
             1 Family Eukoeneniidae Petrunkevitch, 1955
            Count: 1g
             2 Family Prokoeneniidae Condé, 1996
            Count: [g] 2g