[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
     Subclass Copepoda H. Milne-Edwards, 1840 - copepods
       Order Cyclopoida Sars, 1886
         01 Family Ascidicolidae Thorell, 1860
         02 Family Botryllophilidae G.O. Sars, 1921 see Subfamily Botryllophilinae G.O. Sars, 1921
         03 Family Buproridae Thorell, 1859
         04 Family Chordeumiidae Boxshall, 1988
         05 Family Cyclopidae Rafinesque, 1815
         06 Family Cyclopinidae G.O. Sars, 1913
         07 Family Enterocolidae Della Valle, 1883 see Family Enteropsidae Aurivillius, 1885
         08 Family Enterognathidae Illg & Dudley, 1980
         09 Family Enteropsidae Aurivillius, 1885
         10 Genus Gomphopodarion Humes, 1974
         11 Family Fratiidae Ho et al., 1998
         12 Family Haplostomidae (E. Chatton & H. Harant, 1924) see Subfamily Haplostomatinae E. Chatton & H. Harant, 1924
         13 Family Notodelphyidae Dana, 1852
         14 Family Oithonidae Dana, 1852
         15 Family Thaumatopsyllidae G.O. Sars, 1913