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 Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
             Subclass Malacostraca Latreille, 1802 see Class Malacostraca Latreille, 1802
               Superorder Eucarida Calman, 1904
                 Order Decapoda Latreille, 1802 - decapods
                   Suborder Pleocyemata Burkenroad, 1963
                     Infraorder Brachyura Latreille, 1802 - true crabs
                       Section Brachyrhyncha Borradaile, 1907 see Section Eubrachyura de Saint Laurent, 1980
                         Superfamily Potamoidea Ortmann, 1896
                           01 Family Potamidae Ortmann, 1896
                           02 Family Deckeniidae Ortmann, 1897
                           03 Family Isolapotamidae see Family Potamidae Ortmann, 1896
                           04 Family Potamonautidae Bott, 1970
                           05 Family Sinopotamidae see Family Potamidae Ortmann, 1896
                           06 Family Trichodactylidae Milne Edwards, 1853
                           07 Family Pseudothelphusidae Ortmann, 1893
                           08 Family Potamocarcinidae see Family Pseudothelphusidae Ortmann, 1893
                           09 Family Gecarcinucidae Rathbun, 1904
                           10 Family Sundathelphusidae see Family Gecarcinucidae Rathbun, 1904
                           11 Family Parathelphusidae Alcock, 1910