Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Monoplacophora Odhner, 1940 [monotypic] - monoplacophorans
     Order Monoplacophorida Wenz, in Knight, 1952
       Superfamily Trybliidioidea Millard, 1997, orth. inval. see Superfamily Tryblidioidea Pilsbry, 1899
         Family Neopilinidae Knight & Yochelson, 1958
           1 Genus Laevipilina McLean, 1979
           2 Genus Micropilina Waren, 1989
           3 Genus Neopilina H. Lemche, 1957
           4 Genus Rokopella Starobogatov & Moskalev, 1987