"chrysophytes" see [unranked] core chrysophytes
   Class Phaeothamniophyceae R.A. Andersen & J.C. Bailey (1998)
     Order Phaeothamniales Bourr. (1954)
       Family Phaeothamniaceae Hansgirg (1886)
         01 Genus Chrysapion Pascher & Vlk (1943)
         02 ?Genus Chrysocapsopsis R.H. Thompson & D.E. Wujek (1998)
         03 Genus Chrysoclonium Pascher (1925)
         04 ?Genus Chrysodesmis K. Starmach (1970)
         05 ?Genus Koinopodion Pascher (1943)
         06 Genus Phaeobotrys H. Ettl (1966)
         07 Genus Phaeogloea R. Chodat (1922)
         08 Genus Phaeoschizochlamys E.J. Lemmermann (1898)
         09 Genus Phaeothamnion G. Lagerheim, in Wittrock & Nordst. (1884)
         10 Genus Selenophaea R. Chodat (1922)
         11 Genus Sphaeridiothrix A.A. Pascher & W. Vlk, 1941-1942[1943]
         12 Genus Stichogloea R. Chodat (1897)
         13 Genus Tetrachrysis A.J. Dop (1980)
         14 Genus Tetrapion Pascher (1943)
         15 Genus Tetrasporopsis Lemmermann ex Schmidle (1902)