[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 Thoracica Darwin, 1854
         Order Pedunculata Lamarck, 1818
           Suborder Scalpellomorpha Newman, 1987
             1 Family Calanticidae Zevina, 1978
             2 Family Pollicipedidae Leach, 1817
             3 Family Scalpellidae Pilsbry, 1907