[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       "Moniliformopses" Kenrick & P.R.Crane (1997), nom. inval. - ferns see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval.
         Class Marattiopsida Doweld (2001) see Subclass Marattiidae Klinge (1882)
           Order Marattiales Link (1833)
             Family Marattiaceae Kaulf. (1824), nom. cons. - marattioids
               1 Genus Angiopteris Hoffm. (1796), nom. cons.
               2 Genus Marattia Sw. (1788)
               3 Genus Danaea Sm. (1793), nom. cons.
               4 Genus Christensenia Maxon (1905)