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 Pinophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Class Pinopsida Burnett (1835)
             Class Pinopsida Burnett (1835)
               Subclass Cupressidae Doweld (2001)
                 Order Taxodiales Heintze (1927)
                   1 Family †Geinitziaceae L. Kunzmann (1999)
                   2 Family Sequoiaceae Luerss. (1877)
                   3 Family Taxodiaceae Saporta (1865), nom. cons. - bald cypress family see Family Cupressaceae Gray (1822), nom. cons.
                   4 Family Cryptomeriaceae Goroschankin (1904)