Euarthropoda †Lamellipedia see Superclass Lamellipedia Hou & Bergström, 1997 †Artiopoda Hou & Bergström, 1997 see Subphylum Artiopoda Hou & Bergström, 1997 Genus †Squamacula Hou & Bergström, 1997 †Squamacula clypeata Hou & Bergström, 1997