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 Marchantiidae Engl. (1893)
               Order Marchantiales Limpr.
                 Suborder Marchantiineae
                   Family Aytoniaceae Cavers
                     1 Genus Asterella P.Beauv. (1805)
                     2 Genus Cryptomitrium Austin ex Underw. (1883)
                     3 Genus Mannia Opiz (1829)
                     4 Genus Plagiochasma Lehm. & Lindenb. (1832)
                     5 Genus Reboulia Raddi (1818), nom. cons., orth. cons.