[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 Cirripedia Lamarck - barnacles and their kin see Infraclass Cirripedia Burmeister, 1834
       Superorder Acrothoracica Gruvel, 1905
         Order Pygophora Berndt, 1907
           Suborder Pygophora Berndt, 1907 see Order Pygophora Berndt, 1907
             1 Family Lithoglyptidae Aurivillius, 1892