Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848 Superclass †Lamellipedia Hou & Bergström, 1997 - lamellipedians Class †Artiopoda Hou & Bergström, 1997 see Subphylum Artiopoda Hou & Bergström, 1997 Subclass †Trilobita Walch, 1771 see Class Trilobita Walch, 1771