Kingdom Animalia Linnaeus, 1758 - animals Phylum Mollusca Linnaeus, 1758 - molluscs Subphylum Cyrtosoma Runnegar & Pojeta Jr., 1974 see Phylum Mollusca Linnaeus, 1758 Class Monoplacophora Odhner, 1940 - monoplacophorans Order †Pelagiellida Runnegar & Pojeta, 1985 see Order Pelagielliformes Runnegar & Pojeta, 1985 Genus †Pelagiella Matthew, 1895