Phylum Schizoramia Bergström, 1976a see Phylum Arthropoda Siebold, 1848 Superclass †Lamellipedia Hou & Bergström, 1997 - lamellipedians Class †Marrellomorpha Beurlen, 1934 Order †Marrellida Raymond, 1935 1 Family †Marrellidae Walcott, 1912