[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 Chaetodermatidae von Ihering, 1786
         Genus Falcidens Salvini-Plawen, 1968
           Falcidens crossotus Salvini-Plawen, 1968