living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Class Bivalvia Linnaeus, 1758 - bivalves
             Subclass Protobranchia Pelseneer, 1889
               Order Nuculoida - nut clams see Order Nuculida Dall, 1889
                 Superfamily Nuculanacea Adams & A, 1858, nom. illeg. see Superfamily Nuculanoidea Adams & Adams, 1858 (1854)
                   Family Nuculanidae Adams & Adams, 1858 (1854) - pointed nut clams
                     1 Genus Nuculana Link, 1807
                     2 Genus Portlandia Mörch, 1857
                     3 Genus Yoldia Møller, 1842
                     4 Genus Adrana Adams & Adams, 1858
                     5 Genus Zealeda Marwick, 1924
                     6 Genus Sarepta Adams, 1860