[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Aplacophora von Ihering, 1876 - aplacophorans see Phylum Mollusca Linnaeus, 1758
       Family Simrothiellidae Salvini-Plawen, 1978
         Genus Simrothiella Pilsbry, 1898
           1 Simrothiella borealis (Odhner, 1921) see Kruppomenia borealis Odhner, 1921
           2 Simrothiella margaritacea (Koren & Danielssen, 1877)
           3 Simrothiella minima (Nierstrasz, 1903) see Kruppomenia minima Nierstrasz, 1903