living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Chlorophycota see Phylum Chlorophyta Pascher (1914)
           Class Charophyceae Rabenh. (1863) - stoneworts
             Order Charales Lindl. (1836) - stoneworts
               Family Characeae Agardh (1824) - stoneworts
                 Tribe Nitelleae
                   Genus Nitella C.Agardh (1824)
                   Genus Tolypella (A.Braun) A.Braun (1857)