organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Protoctista Hogg, 1860 Phylum Chlorophyta Pascher (1914) - green algae Class Chlorococcales see Order Chlorococcales Pascher 1 Family Chlorococcaceae Blackman & Tansley 2 Family Chlorellaceae Brunnthaler 3 Family Hydrodictyaceae Dumort.