Phylum Bryophyta A.Braun (1864) - bryophytes
   Class Bryopsida McClatchie (1897) - mosses
     Subclass Funariidae Ochyra
       Order Funariales M. Fleisch.
         Family Gigaspermaceae Lindb.
           1 Genus Chamaebryum Thér. & Dixon (1922)
           2 Genus Costesia Thér.
           3 Genus Gigaspermum Lindb. (1865)
           4 Genus Lorentziella Müll.Hal. (1879)
           5 Genus Neosharpiella H. Rob. & Delgad.
           6 Genus Oedipodiella Dixon (1922)