Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848
Count: 1c; †7c;30o;37f;5g;2s
   Superclass †Lamellipedia Hou & Bergström, 1997 - lamellipedians
  Count: [†c] †2c;14o;18f;1g;1s
     Class †Artiopoda Hou & Bergström, 1997 see Subphylum Artiopoda Hou & Bergström, 1997
    Count: †12o;17f;1g;1s
       Subclass †Trilobita Walch, 1771 see Class Trilobita Walch, 1771
      Count: -