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 †Marrellomorpha Beurlen, 1934
    Count: -
       Order †Marrellida Raymond, 1935
      Count: [†f] †1f
         1 Family †Marrellidae Walcott, 1912
        Count: -