Viridiplantae Cavalier-Smith, 1981 - green plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Chlorophyta Pascher (1914) - green algae
     prasinophytes
       .1 Genus Scourfieldia G.S.West (1912)
       1 Palmophyllales Zechhman, Verbruggen, Leliart et al. (2010)
       2 Prasinococcales Guillou et al. (2004), nom. nud. see Order Prasinococcales Leliaert et al. (2016)
       3 Nephroselmidophyceae Cavalier-Sm. (1993)
       4 prasinophyte clade IX
       5 prasinophyte clade VIII
       6.1 Pycnococcaceae R.R.L. Guillard (1991)
       6.2.1 Mamiellophyceae Marin & Melkonian (2010)
       6.2.2 Pyramimonadales Chadefaud
       6.3.1.1 Genus Picocystis R.A. Lewin in R.A. Lewin et al. (2001)
       6.3.1.2 CCMP1205 clade