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 Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
               Order Veneroida H. & A. Adams, 1856 see Order Venerida Gray, 1854
                 Superfamily Lucinacea Fleming, 1828, nom. illeg. see Superfamily Lucinoidea Fleming, 1828
                   Family Thyasiridae Dall, 1900 (1895)
                     Genus Thyasira Lamarck, 1818
                     Genus Adontorhina Berry, 1947
                     Genus Axinopsida Keen & Chavan, 1951
                     Genus Axinulus Verrill & Bush, 1898 see Genus Thyasira Lamarck, 1818
                     Genus Leptaxinus Verrill & Bush, 1898 see Genus Thyasira Lamarck, 1818
                     Genus Parthysira Boss, 1982, orth. inval. see Genus Parathyasira Iredale, 1930
                     Genus Tauraxinus Sacco, 1901
                     Genus Maorithyas Fleming, 1950