organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Tracheata see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
         Phylum Anthophyta see Infraphylum Angiospermae auct.
           Class Dicotyledonae see Class Magnoliopsida Brongn. (1843)
             Subclass Hamamelidae see Subclass Hamamelididae Takht. (1967)
               Order Trochodendrales Takht. ex Cronquist (1981)
                 Genus Tetracentron Oliv. (1889)
                 Genus Trochodendron Siebold & Zucc. (1839)