Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848
Count: 1c; †7c;30o;37f;5g;2s
   Superclass †Proschizoramia Hou & Bergström, 1997
  Count: [†o] †4c;10o;15f
     Order †Tuzoiida Simonetta & Delle Cave, 1975
    Count: [†f] †1f
       1 Family †Tuzoiidae Raymond, 1935
      Count: -