organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Viridaeplantae Cavalier-Sm. (1981) - green plants see [unranked] Viridiplantae Cavalier-Smith, 1981
         Land plants
           Phylum Ginkgophyta Bessey (1907) see Subclass Ginkgoidae Pax (1900)
             Order Ginkgoales Gorozh. (1904)
               1 Family Ginkgoaceae Engl. (1897), nom. cons. - maidenhair tree family
               2 Family †Karkeniaceae Krassilov (1972)
               3 Family †Umaltolepidiaceae orth. inval. see Family Umaltolepidaceae Zhi Y.Zhou (1990), nom. cons. prop.
               4 Family †Yimaiaceae Zhi Y.Zhou (1997)
               5 Family †Schmeissneriaceae Zhi Y.Zhou (2000)