Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Subkingdom Bryobiotina Campb. (1890)
     Division Bryophyta A.Braun (1864) - mosses and liverworts see Phylum Bryophyta A.Braun (1864)
       Subdivision Bryophytina Engl. (1892) see Subphylum Bryophytina Engl. (1892)
         Class Bryopsida McClatchie (1897) - mosses
           Subclass Bryidae Engl. (1892) - mosses
             Superorder Hypnanae W.R.Buck & Goffinet ex W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005)
               Order Hypnales W.R. Buck & Vitt
                 Family Pylaisiadelphaceae Goffinet & W.R.Buck (2004)
                   01 Genus Aptychella (Broth.) Herzog (1916)
                   02 Genus Brotherella Loeske ex M.Fleisch. (1914)
                   03 Genus Clastobryopsis M.Fleisch. (1923)
                   04 Genus Clastobryum Dozy & Molk. (1846)
                   05 Genus Heterophyllium (Schimp.) Müll.Hal. ex Kindb. (1894)
                   06 Genus Isocladiella Dixon (1931)
                   07 Genus Isocladiellopsis B.C.Tan, T.J. Kop. & D.H. Norris (2011)
                   08 Genus Isopterygium Mitt. (1869)
                   09 Genus Mastopoma Cardot (1901)
                   10 Genus Platygyrium Schimp. (1851), nom. cons.
                   11 Genus Pterogonidium Müll.Hal. (1897)
                   12 Genus Pseudotrismegistia H. Akiyama & Tsubota
                   13 Genus Pylaisiadelpha Cardot (1912)
                   14 Genus Taxitheliella Dixon (1935)
                   15 Genus Taxithelium Spruce ex Mitt. (1869)
                   16 Genus Trismegistia (Müll.Hal.) Müll.Hal. (1896)
                   17 Genus Wijkia H.A. Crum (1971)
                   18 Genus Yakushimabryum H. Akiyama, Ying Chang, T. Yamag. & B.C. Tan (2011)