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 Fagales Engl. (1892)
                 1 Family Balanopaceae Benth. & Hook.f. (1880), nom. cons. - Balanops family
                 2 Family Ticodendraceae Gómez-Laur. & L.D.Gómez (1991)
                 3 Family Fagaceae Dumort. (1829), nom. cons. - beech family
                 4 Family Nothofagaceae Kuprian. (1962)
                 5 Family Betulaceae Gray (1822), nom. cons. - birch family