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 Pteriomorphia Beurlen, 1944 see Superorder Pteriomorphia Beurlen, 1944
               Superorder Isofilibranchia Iredale, 1939 see Superorder Filibranchia
                 Order Mytiloida Férussac, 1822 see Order Mytilida Férussac, 1822
                   Superfamily Mytilacea Rafinesque, 1815, nom. illeg. see Superfamily Mytiloidea Rafinesque, 1815
                     Family Mytilidae Rafinesque, 1815 - marine mussels
                       Subfamily Modiolinae Termier & Termier, 1950, nom. protect.
                         1 Genus Modiolus Lamarck, 1799
                         2 Genus Dacrydium Torell, 1859