Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848
   Superclass †Proschizoramia Hou & Bergström, 1997
     Class †Megacheira Hou & Bergström, 1997
       1 Order †Leanchoiliida Størmer, 1944, nom. corr.
       1.0 Order †Leanchoilida Størmer, 1944 see Order Leanchoiliida Størmer, 1944, nom. corr.
       2 Order †Yohoiida Simonetta & Delle Cave, 1975
       3 Order †Fortiforcipida Hou & Bergström, 1997 see Family Jianfengiidae Aria, Zhao, Zeng, Guo & Zhu, 2020