[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Eucoelomata see Superphylum Eucoelomata
             Phylum Mollusca Linnaeus, 1758 - molluscs
               Class Gastropoda Cuvier, 1795 - snails and slugs
                 Subclass Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
                   Order Thecosomata Blainville, 1824 - shelled pteropods see Suborder Thecosomata Blainville, 1824
                     Genus Cavolina Abildgaard, 1791, orth. inval. see Genus Cavolinia Abildgaard, 1791
                     Genus Creseis Rang, 1828
                     Genus Cymbulia Péron & Lesueur, 1810
                     Genus Peraclis Pelseneer, 1887 see Genus Peracle Forbes, 1844