living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 4k;54p;156c;911o;7123f;17,575g;4762s;36ss;8v;19; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
  Count: [c] 2k;51p;154c;900o;7001f;17,209g;4300s;33ss;8v; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
     Kingdom Animalia Linnaeus, 1758 - animals
    Count: [c] 38p;101c;595o;5766f;13,419g;3233s;32ss;3v; ‡1f;6g;7s;1ss; †1c;9o;10f;16g;1s
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
      Count: [c] 29p;70c;458o;5094f;11,476g;2933s;31ss;3v; ‡1f;6g;7s;1ss; †1c;8o;10f;11g;1s
         Phylum Arthropoda Siebold, 1848 - arthropods
        Count: [c] 13c;103o;2228f;3426g;823s;9ss; †2o;3f;6g
           Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
          Count: [f] 1c;36o;588f;819g;256s;1ss; †2f;3g
             Subclass Malacostraca Latreille, 1802 see Class Malacostraca Latreille, 1802
            Count: [f] 15o;383f;558g;190s;1ss; †1f;3g
               Superorder Eucarida Calman, 1904
              Count: [f] 3o;108f;196g;107s;1ss; †1f
                 Order Decapoda Latreille, 1802 - decapods
                Count: [f] 105f;193g;105s;1ss; †1f
                   Suborder Pleocyemata Burkenroad, 1963
                  Count: [f] 100f;184g;99s;1ss; †1f
                     Infraorder Brachyura Latreille, 1802 - true crabs
                    Count: [f] 47f;86g;39s
                       Section Cancridea see Subsection Heterotremata Guinot, 1977
                      Count: [f] 5f;7g;8s
                         Section Cancridea see Subsection Heterotremata Guinot, 1977
                        Count: [f] 5f;7g;8s
                           Superfamily Cancroidea Latreille, 1802
                          Count: 5f;7g;8s
                             Family Cancridae Latreille, 1802
                            Count: [g] 1g;3s
                               Genus Cancer Linnaeus, 1758 - cancer crab
                              Count: 3s
                                 Cancer magister Dana, 1852 - Dungeness crab
                                Count: -