Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Hamamelididae Takht. (1967)
       Superorder Trochodendranae Takht. ex Reveal (1996)
         Order Trochodendrales Takht. ex Cronquist (1981)
           Family Trochodendraceae Eichler (1865), nom. cons. - yama-kuruma family
             1 Genus Trochodendron Siebold & Zucc. (1839)