Lacunastrum H.A. McManus in McManus, Lewis & Schultz, 2011 genus accepted

Anaxis (Ehrenberg) L. Agassiz, 1843 genus accepted

Euastropsis Lagerheim, 1894 genus accepted

Monactinus Corda, 1839 genus accepted

Tetrasoma A.K.J. Corda, 1839 genus accepted

Tetraedroides B.M. Griffiths, 1923 genus accepted

Tetraedron Kützing, 1845 genus accepted

Tetrapedia Reinsch, 1866 genus accepted

Oplaria Losana, 1829 genus accepted

Parapediastrum E. Hegewald in M. Buchheim et al., 2005 genus accepted

Pediastrites M.D. Zalessky, 1926 genus accepted

Pediastrum Meyen, 1829 genus accepted

Hydrodictyolites V.A. Elovskij, 1930 genus accepted

Hydrodictyon Roth, 1797 genus accepted

Hydrodictyopsis A. Massalongo in A. Massalongo & E.G. Scarabelli, 1859 genus accepted

Hydrodyctionella Gaillon, 1833 genus accepted

Asterodictyon C.G. Ehrenberg, 1845 genus accepted

Helierella Bory de Saint-Vincent, 1823 genus accepted

Protoleobus Wood, 1997 genus accepted

Pseudopediastrum E. Hegewald in M. Buchheim et al., 2005 genus accepted

Sorastrum Kützing, 1845 genus accepted

Stauridium Corda, 1839 genus accepted

Kahfia Le Hérissé, Al-Tayyar & van der Eem, 1995 genus accepted