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 Bryopsida McClatchie (1897) - mosses
             Subclass Bryidae Engl. (1892) - mosses
               Superorder Haplolepideae see Subclass Dicranidae Doweld (2001)
                 Order Pottiales M. Fleisch.
                   Family Pottiaceae Hampe (1853), nom. cons.
                     Genus Tortella (Lindb.) Limpr. (1888), nom. cons.
                       Tortella fragilis (S.W. Greene, in S.W. Greene et al.) Zander & Hoe (1979)