Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Caudofoveata Boettger, 1956 - caudofoveatans
       Genus Chaetoderma Lovén, 1844
       Genus Falcidens Salvini-Plawen, 1968
       Genus Limifossor Heath, 1904
       Genus Scutopus Salvini-Plawen, 1968