 [organisms]
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
 [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
 Crustacea (Brünnich, 1772) - crustaceans
 see Superclass Crustacea Pennant, 1777
     Subclass Copepoda H. Milne-Edwards, 1840 - copepods
 Subclass Copepoda H. Milne-Edwards, 1840 - copepods
       Order Poecilostomatoida Thorell, 1859
 Order Poecilostomatoida Thorell, 1859
         Family Clausiidae Giesbrecht, 1895
 Family Clausiidae Giesbrecht, 1895
           1 Genus Clausia Claparède, 1863
 1 Genus Clausia Claparède, 1863
           2 Genus Megaclausia O'Reilly, 1995
 2 Genus Megaclausia O'Reilly, 1995
           3 Genus Mesnilia Canu, 1898
 3 Genus Mesnilia Canu, 1898
           4 Genus Pontoclausia Bacescu & Por, 1959
 4 Genus Pontoclausia Bacescu & Por, 1959
           5 Genus Pseudoclausia Bocquet & Stock, 1960
 5 Genus Pseudoclausia Bocquet & Stock, 1960
           6 Genus Rhodinicola Levinsen, 1878
 6 Genus Rhodinicola Levinsen, 1878