life
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Arthropoda Siebold, 1848 - arthropods
    
 Class Arachnida Lamarck, 1801
      
 Dromopoda Shultz, 1990
 see Subclass Dromopoda Shultz, 1990
        
 1 Order Opiliones Sundevall, 1833 - harvestmen
        
 2 Novogenuata Shultz, 1990