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 Cupressales Link (1829)
                   1 Family Cupressaceae Gray (1822), nom. cons. - cypress family
                   2 Family Thujopsidaceae Bessey (1907) see Family Cupressaceae Gray (1822), nom. cons.
                   3 Family Thujaceae Burnett (1835) see Family Cupressaceae Gray (1822), nom. cons.
                   4 Family Tetraclinaceae Hayata (1932) see Family Cupressaceae Gray (1822), nom. cons.
                   5 Family Juniperaceae J. Presl & C.Presl (1822) see Family Cupressaceae Gray (1822), nom. cons.