[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Crustacea (Brünnich, 1772) - crustaceans see Superclass Crustacea Pennant, 1777
     Order Amphipoda Latreille, 1816 - amphipods
       Suborder Gammaridea Latreille, 1802
         01 Family Acanthonotozomatidae Stebbing, 1906
         02 Family Amathillopsidae Pirlot, 1934
         03 Family Ampeliscidae Costa, 1857
         04 Family Amphilochidae Boeck, 1871
         05 Family Ampithoidae Stebbing, 1899
         06 Family Anisogammaridae Bousfield, 1977
         07 Family Aoridae Stebbing, 1899
         08 Family Argissidae Walker, 1904
         09 Family Astyridae Pirlot, 1934 see Subfamily Astyrinae Pirlot, 1934
         10 Family Biancolinidae J.L. Barnard, 1972
         11 Family Bogidiellidae Hertzog, 1936
         12 Family Carangoliopsidae Bousfield, 1977
         13 Family Cheluridae Allman, 1847
         14 Family Colomastigidae Stebbing, 1899
         15 Family Corophiidae Leach, 1814
         16 Family Cressidae Stebbing, 1899
         17 Family Dexaminidae Leach, 1814
         18 Family Epimeriidae Boeck, 1871
         19 Family Eusiridae Stebbing, 1888
         20 Family Gammaracanthidae Bousfield, 1989
         21 Family Gammarellidae Bousfield, 1977
         22 Family Gammaridae Latreille, 1802
         23 Family Haustoriidae Stebbing, 1906
         24 Family Hyalidae Bulycheva, 1957
         25 Family Hyperiopsidae Bovallius, 1886
         26 Family Iphimediidae Boeck, 1871
         27 Family Isaeidae Dana, 1853
         28 Family Ischyroceridae Stebbing, 1899
         29 Family Lafystiidae Sars, 1893
         30 Family Laphystiopsidae Stebbing, 1899
         31 Family Lepechinellidae Schellenberg, 1926 see Family Atylidae Lilljeborg, 1865
         32 Family Leucothoidae Dana, 1852
         33 Family Liljeborgiidae Stebbing, 1899
         34 Family Lysianassidae Dana, 1849
         35 Family Megaluropidae Thomas & Barnard, 1986
         36 Family Melitidae Bousfield, 1973
         37 Family Melphidippidae Stebbing, 1899
         38 Family Odiidae Coleman & Barnard, 1991
         39 Family Oedicerotidae Lilljeborg, 1865
         40 Family Pardaliscidae Boeck, 1871
         41 Family Phliantidae Stebbing, 1899
         42 Family Phoxocephalidae G.O. Sars, 1891
         43 Family Pleustidae Buchholz, 1874
         44 Family Podoceridae Leach, 1814
         45 Family Pontoporeiidae Dana, 1853
         46 Family Sebidae Walker, 1908
         47 Family Stegocephalidae Dana, 1853
         48 Family Stenothoidae Boeck, 1871
         49 Family Synopiidae Dana, 1853
         50 Family Talitridae Rafinesque, 1815
         51 Family Urothoidae Bousfield, 1978
         52 Family Valettiidae Stebbing, 1888