living organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Superkingdom Eukaryotae
 see Domain Eukaryota Chatton, 1925
    
 Kingdom Animalia Linnaeus, 1758 - animals
      
 Subkingdom Eumetazoa Butschli, 1910
 see [unranked] Eumetazoa Bütschli, 1910
        
 Phylum Arthropoda Siebold, 1848 - arthropods
          
 Subphylum Chelicerata Heymons, 1901
            
 Class Arachnida Lamarck, 1801
              
 Subclass Acari Leach, 1817 - mites and ticks
                
 Order Acariformes Zakhvatkin, 1952
 see Superorder Acariformes Zakhvatkin, 1952
                  
 Suborder Prostigmata Kramer, 1877
                    
 1 Cohort Endeostigmata Grandjean, 1937
 see Suborder Endeostigmata Grandjean, 1937
                    
 2 Cohort Eupodina
 see Infraorder Eupodina Krantz, 1978
                    
 3 Cohort Labidostommatina
 see Infraorder Labidostommatina Krantz, 1978
                    
 4 Cohort Anystina van der Hammen, 1972
 see Hyporder Anystae Krantz, 1978
                    
 5 Cohort Parasitengona Oudemans, 1909 - chiggers, velvet mites, water mites, and their relatives
 see Hyporder Parasitengona Oudemans, 1909
                    
 6 Cohort Eleutherengona Oudemans, 1909
 see Infraorder Eleutherengona Oudemans, 1909