Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
   Nudipleura Wägele & Willan, 2000
     Nudibranchia Cuvier, 1814 see Order Nudibranchia Cuvier, 1814
       Dexiarchia Schrödl, Wägele & Willan, 2001
         Cladobranchia Willan & Morton, 1984
           1 Dendronotoidea Sars, 1878 see Superfamily Tritonioidea Lamarck, 1809
           2 Arminoidea Iredale & O'Donoghue, 1923 (1841)
           3 Aeolidoidea d'Orbigny, 1834 see Superfamily Aeolidioidea Gray, 1827