Phylum Lobopodia Snodgrass, 1938 - lobopodians Class †Xenusia Dzik & Krumbiegel, 1989 - xenusians Order †Scleronychophora Hou & Bergström, 1995 see Order Xenusiida Dzik & Krumbiegel, 1989 1 Family †Cardiodictyidae Hou & Bergström, 1995