Ceratophila Tang, Skelley & Perez-Farrera, 2018 genus accepted

Chamberlania Artabe et al., 2005 genus accepted

Zamia rugosa species synonym

Worsdellia A.E.Artabe, A.B.Zamuner & D.W.Stevenson, 2004 genus accepted

Brunoa A.E.Artabe, A.B.Zamuner & D.W.Stevenson, 2004 genus accepted

Restrepophyllum M.G.Passalia, G.Del Fueyo & S.Archangelsky, 2010 genus accepted

Centricycas D.J.Cantrill, 2000 genus doubtful

Palma-Filix Adanson, 1763 genus synonym

Palmifolium Kuntze genus synonym

Catakidozamia W.Hill genus synonym

Palma-filix Adans. genus synonym

Austrozamia P.Wilf, D.W.Stevenson & N.R.Cúneo, 2016 genus doubtful

Pterostoma R.S.Hill, 1980 genus accepted

Dion Lindl. genus synonym

Chamberlainia A.E.Artabe, A.B.Zamuner & D.W.Stevenson, 2005 genus synonym

Bowenia Hook. genus accepted

Stangeria T.Moore genus accepted

Zamia L. genus accepted

Lepidozamia Regel genus accepted

Dioon Lindl. genus accepted

Macrozamia Miq. genus accepted

Chigua D.W.Stev. genus synonym

Dipsacozamia Lehm. genus synonym

Platyzamia Zucc. genus synonym

Microcycas (Miq.) A.DC. genus accepted

Ceratozamia Brongn. genus accepted

Aulacophyllum Regel genus synonym

Encephalartos Lehm. genus accepted

Zamia regeliana D.W.Stev. species synonym

Neochamberlainia A.E.Artabe, A.B.Zamuner & D.W.Stevenson, 2010 genus doubtful

Bororoa Petriella, 1972 genus accepted