Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848
   Superclass Crustaceomorpha Chernyshev, 1960 see [unranked] Crustaceomorpha Chernyshev, 1960
     Class Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
       1 ?Order †Isoxyida Simonetta & Delle Cave, 1975
       1.0 Order †Isoxyda Simonetta & Delle Cave, 1975 see Order Isoxyida Simonetta & Delle Cave, 1975
       2 Subclass Branchiopoda Latreille, 1817 see Class Branchiopoda Latreille, 1817
       3 Subclass Maxillopoda Dahl, 1956 see Class Maxillopoda Dahl, 1956