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 †Nectopleura Hou & Bergström, 1997 Order †Acercostraca Lehmann, 1955 Genus †Vachonisia 1 †Vachonisia rogeri (Lehmann, 1955)