Bachmanniella R. Chodat, 1933 genus accepted

Chlorhormidium B. Fott, 1960 genus accepted

Chlorocystis L. Reinhard, 1885 genus accepted

Chlorothrix Y. Berger-Perrot in Y. Berger-Perrot & J.C. Thomas, 1982 genus accepted

Codiolum A. Braun, 1855 genus accepted

Binuclearia Wittrock, 1886 genus accepted

Coccothrix P.A. Broady & G.M. Lokhorst, 2000 genus accepted

Heterothrichopsis Iyengar & Kanthamma, 1941 genus accepted

Losanaea V.B.A. Trevisan, 1848 genus accepted

Hediniella J.N.F. Wille in Hedin, 1922 genus accepted

Hormotrichopsis genus accepted

Pseudothrix L.A. Hanic & S.C. Lindstrom, 2008 genus accepted

Palaeogeminella T.R. Fairchild & J.W. Schopf in T.R. Fairchild, J.W. Schopf & R.L. Folk, 1973 genus accepted

Fottea F. Hindák, 1968 genus accepted

Geminellopsis A.A. Korsikov, 1939 genus accepted

Gloeotilopsis Iyengar & Philipose, 1956 genus accepted

Pearsoniella Fritsch & Rich, 1924 genus accepted

Halochlorococcum P.J.L.Dangeard, 1965 genus accepted

Hormidiopsis Heering in Pascher, 1914 genus accepted

Hormidiospora Vinatzer, 1975 genus accepted

Ignatius H.C. Bold & F.J. MacEntee, 1974 genus accepted

Psephonema H. Skuja in Handel-Mazzetti, 1937 genus accepted

Psephotaxus W. West & G.S. West, 1897 genus accepted

Pseudendocloniopsis Vischer, 1933 genus accepted

Pseudoneochloris Watanabe, Himizu, Lewis, Floyd & Fuerst, 2000 genus accepted

Pseudoschizomeris T. Deason & H. Bold, 1960 genus accepted

Pseudulothrix Pascher, 1907 genus accepted

Raphidonemopsis T. Deason, 1969 genus accepted

Ulothrix Kützing, 1833 genus accepted

Ulotrichopsis L. Wichmann, 1937 genus accepted

Urospora J.E. Areschoug, 1866 genus accepted

Spongomorpha Kützing, 1843 genus accepted

Microsporopsis W. Vischer, 1940 genus accepted

Ingenhouzella Gaillon, 1833 (?) genus accepted

Interfilum R. Chodat, 1922 genus accepted

Dendronema Schmidle, 1897 genus accepted

Didymothrix Y.X. Wei & H.J. Hu in Y.X. Wei, 1991 genus accepted

Acrosiphonia J.Agardh, 1846 genus accepted