[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Family Clionidae Rafinesque, 1815
         1 Genus Clione Pallas, 1774 - sea-butterfly
         2 Genus Fowlerina Pelseneer, 1906
         3 Genus Paraclione Tesch, 1903
         4 Genus Thalassopterus Kwietniewski, 1910
         5 Genus Thliptodon Boas, 1886