 Phylum Arthropoda Siebold, 1848 - arthropods
 Phylum Arthropoda Siebold, 1848 - arthropods
   Subphylum Crustacea Brünnich, 1772 - crustaceans
 see Superclass Crustacea Pennant, 1777
 Subphylum Crustacea Brünnich, 1772 - crustaceans
 see Superclass Crustacea Pennant, 1777
     Class Maxillopoda Dahl, 1956
 see Subphylum Pancrustacea Zrzavý et al., 1997
 Class Maxillopoda Dahl, 1956
 see Subphylum Pancrustacea Zrzavý et al., 1997
       Subclass Thecostraca Gruvel, 1905 - barnacles
 Subclass Thecostraca Gruvel, 1905 - barnacles
         Infraclass Cirripedia Burmeister, 1834 - barnacles
 Infraclass Cirripedia Burmeister, 1834 - barnacles
           Superorder Acrothoracica Gruvel, 1905
 Superorder Acrothoracica Gruvel, 1905
             1 Order Pygophora Berndt, 1907
 1 Order Pygophora Berndt, 1907
             2 Order Apygophora Berndt, 1907
 2 Order Apygophora Berndt, 1907