Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848
   Superclass †Proschizoramia Hou & Bergström, 1997
     Class †Megacheira Hou & Bergström, 1997
       Order †Leanchoiliida Størmer, 1944, nom. corr.
         Family †Leanchoiliidae Raymond, 1935
           Genus †Leanchoilia Walcott, 1912
             1 †Leanchoilia superlata Walcott, 1912
             2 †Leanchoilia illecebrosa (Hou, 1987)