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 Chlorophyceae Wille (1884) - chlorophytes
             Order Ulotrichales Borzi
               Family Ulotrichaceae Kützing
                 ?Genus Binuclearia Wittrock (1886)
                 ?Genus Geminella Turpin (1828)
                 ?Genus Gloeotilopsis Iyengar & Philipose (1956)
                 ?Genus Hormidiella M.O.P. Iyengar & S. Kanthamma (1940)
                 ?Genus Hormotrichopsis
                 ?Genus Microsporopsis W. Vischer (1940)
                 ?Genus Raphidonemopsis T. Deason (1969)
                 Genus Ulothrix F.T. Kützing (1833)
                 ?Genus Ulotrichopsis L. Wichmann (1937)