organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     related to multicellular groups
       Class Chlorophyceae Wille (1884) - chlorophytes
         Order Volvocida Francé, 1894, orth. zool. - volvocids see Order Chlamydomonadales F.E. Fritsch
           Genus Spirogonium Pascher (1927)
             1 Spirogonium chlorogonioides (Pascher) Pascher, 1927a