Euarthropoda
   †Lamellipedia see Superclass Lamellipedia Hou & Bergström, 1997
     †Artiopoda Hou & Bergström, 1997 see Subphylum Artiopoda Hou & Bergström, 1997
       Order †Nektaspida Raymond, 1920 - nektaspids see Class Nektaspida Raymond, 1920
         Family †Liwiidae Dzik & Lendzion, 1988 see Subfamily Liwiinae Dzik & Lendzion, 1988
           Genus †Liwia Dzik & Lendzion, 1988
             1 †Liwia convexa (Lendzion, 1975)
             2 †Liwia plana (Lendzion, 1975)