Phylum Mollusca Linnaeus, 1758 - molluscs Class Caudofoveata Boettger, 1956 [monotypic] - caudofoveatans Order Chaetodermatida Simroth, 1893 Family Limifossoridae Salvini-Plawen, 1968 1 Genus Limifossor Heath, 1904 2 Genus Metachaetoderma Thiele, 1913 3 Genus Psilodens Salvini-Plawen, 1977 4 Genus Scutopus Salvini-Plawen, 1968