Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superphylum Cycadophytanae Doweld (2001) Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Subphylum Magnoliophytina Reveal (1996) Class Magnoliopsida Brongn. (1843) Subclass Hamamelididae Takht. (1967) Superorder Hamamelidanae Takht. (1967) see Order Saxifragales Bercht. & J.Presl (1820) Order Cercidiphyllales Hu ex Reveal (1993) [monotypic] see Order Saxifragales Bercht. & J.Presl (1820) 1 Family Cercidiphyllaceae Engl. (1907), nom. cons. - katsura-tree family