Subclass [Bryidae] Engl. (1892) - mosses
   Superorder Hypnanae W.R.Buck & Goffinet ex W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005)
     Order Hookeriales M. Fleisch.
       Family Hypopterygiaceae Mitt.
         Genus Catharomnion Hook.f. & Wilson (1855)