Brilliantia Leliaert, E.Kelly & Jen.E.Smith, 2022 genus doubtful

Spongocladia Areschoug, 1854 genus accepted

Cladophoropsis Børgesen, 1905 genus accepted

Spongodendron Zanardini, 1878 genus synonym

Pterodictyon J.E.Gray, 1866 genus synonym

Symbiomonas L.Guillou, M.J.Chrétiennot-Dinetr Staay & D.Vaulot, 1999 genus doubtful

Boodlea G.Murray & G.B.De Toni, 1889 genus accepted

Phyllodictyon J.E.Gray, 1866 genus accepted

Struvea Sonder, 1845 genus accepted