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 Paleoheterodonta see Order Unionida Gray, 1854
               Order Trigonioida see Order Trigoniida Dall, 1889
                 Superfamily Trigoniacea Lamarck, 1819 see Superfamily Trigonioidea Lamarck, 1819
                   Family Trigoniidae Lamarck, 1819
                     Genus Neotrigonia Cossmann, 1912 see Genus Trigonia Bruguière, 1789