Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848
   Superclass Crustaceomorpha Chernyshev, 1960 see [unranked] Crustaceomorpha Chernyshev, 1960
     1 Class †Pseudocrustacea Størmer, 1944
     2 Class Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777