living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Embryobionta Cronquist, Takht. & W.Zimm.
         Division Bryophyta A.Braun (1864) - mosses and liverworts see Phylum Bryophyta A.Braun (1864)
           Class Hepaticopsida see Class Marchantiopsida Cronquist, Takht. & W.Zimm. (1966)
             Subclass Jungermanniidae Engl. (1893)
               Order Jungermanniales H. Klinggr.
                 Suborder Cephaloziinae see Suborder Cephaloziineae Schljakov (1972)
                   Family Cephaloziellaceae Douin
                     1 Genus Allisoniella E.A.Hodgs. (1965)
                     2 Genus Amphicephalozia R.M.Schust. (1973)
                     3 Genus Kymatocalyx Herzog (1950)
                     4 Genus Cephaloziopsis (Spruce) Schiffn. (1893)
                     5 Genus Cylindrocolea R.M.Schust. (1969)
                     6 Genus Cephalojonesia Grolle (1971)
                     7 Genus Cephaloziella (Spruce) Schiffn. (1893), nom. cons.