Beania geminata Shirley, 1898 species synonym

Harrisia Lundblad, 1950 genus synonym

Cycadopteris W.P.Schimper, 1869 genus synonym

Pilophorosperma H.H.Thomas, 1933 genus doubtful

Elchaxylon A.E.Artabe & A.B.Zamuner, 2007 genus accepted

Xylopteris J.Frenguelli, 1943 genus accepted

Feruglioa Frenguelli, 1944 genus accepted

Sylvocarpus S.V.Naugolnykh, 2008 genus doubtful

Fanerotheca Frenguelli, 1944 genus accepted

Umkomasia H.H.Thomas, 1931 genus accepted

Antarcticoxylon Seward, 1914 genus accepted

Dicroidium Gothan, 1912 genus accepted

Dicroidiopsis J.Frenguelli, 1943 genus accepted

Paraxylopteris G.A.Pattemore & J.F.Rigby, 2005 genus doubtful

Tudovakia S.A.Schorochova & V.A.Krassilov, 1970 genus doubtful

Nidistrobus M.N.Bose & S.C.Srivastava, 1973 genus accepted

Kykloxylon B.Meyer-Berthaud, T.N.Taylor & E.L.Taylor, 1993 genus doubtful

Rhexoxylon N.Bancroft, 1913 genus accepted

Komlopteris M.Barbacka, 1994 genus accepted

Harrisiothecium B.Lundblad, 1961 genus accepted

Rhaphidopteris G.Barale, 1972 genus accepted

Retinosporites R.Holden, 1915 genus synonym

Tranquiloxylon R.Herbst & A.Lutz, 1995 genus doubtful

Spermatocodon H.H.Thomas, 1933 genus accepted

Jeffersonioxylon G.M.Del Fueyo et al., 1995 genus doubtful

Zuberia J.Frenguelli, 1943 genus synonym

Cuneumxylon A.E.Artabe & M.Brea, 2003 genus accepted

Ctenozamites A.G.Nathorst, 1886 genus synonym

Ptilozamites A.G.Nathorst, 1878 genus accepted

Pteruchus H.H.Thomas, 1933 genus accepted

Ctenopteris A.T.Brongniart ex G.Saporta, 1873 genus synonym

Pteroma T.M.Harris, 1964 genus accepted

Pachypteris A.T.Brongniart, 1828 genus accepted

Trichomanides Tenison-Woods, 1883 genus doubtful

Jordaniopteris H.M.Anderson, 2019 genus doubtful

Axsmithia H.M.Anderson, 2019 genus doubtful

Retinosporitis R.Holden, 1915 genus synonym

Muelkirchium H.M.Anderson, 2019 genus doubtful