Euarthropoda
   †Lamellipedia see Superclass Lamellipedia Hou & Bergström, 1997
     †Artiopoda Hou & Bergström, 1997 see Subphylum Artiopoda Hou & Bergström, 1997
       †Aglaspidida see Subclass Aglaspidida (Walcott, 1911) Bergström, 1968
         1 Genus †Aglaspis Hall, 1862