Phylum Bryophyta A.Braun (1864) - bryophytes
   Class Bryopsida McClatchie (1897) - mosses
     Subclass Bryidae Engl. (1892) - mosses
       Superorder Bryanae Goffinet & W.R. Buck
         Order Bryales Limpr.
           Family Orthodontiaceae Goffinet (2000)
             1 Genus Orthodontium Wilson
             2 Genus Orthodontopsis Ignatov & B.C. Tan