[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
     01 Class Remipedia Yager, 1981 - remipedes
     02 Subclass Branchiura Thorell, 1864 - fish lice
     03 Class Branchiopoda Latreille, 1817 - branchiopods
     04 Subclass Ostracoda Latreille, 1806 - ostracods see Class Ostracoda Latreille, 1802
     05 Class Pentastomida (Diesing, 1836) see Subclass Pentastomida Diesing, 1836
     06 Subclass Mystacocarida Pennak & Zinn, 1943 - mystacocarids
     07 Subclass Copepoda H. Milne-Edwards, 1840 - copepods
     08 Subclass Tantulocarida Boxshall & Lincoln, 1983 - tantulocarids
     09 Subclass Cirripedia Lamarck - barnacles and their kin see Infraclass Cirripedia Burmeister, 1834
     10 Order Stomatopoda Latreille, 1817 - mantis shrimps
     11 Order Euphausiacea Dana, 1852 - krill
     12 Order Decapoda Latreille, 1802 - decapods
     13 Order Thermosbaenacea Monod, 1927 - thermosbaenaceans
     14 Order Mysidacea Haworth, 1825 see Order Mysida Haworth, 1825
     15 Order Amphipoda Latreille, 1816 - amphipods
     16 Order Cumacea Krøyer, 1846 - cumaceans
     17 Order Tanaidacea Dana, 1849 - tanaids
     18 Order Isopoda Latreille, 1817 - isopods