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 Bryopsidales J.H.Schaffn. (1922)
               Family Codiaceae Kütz. (1843)
                 Genus Codium J. Stackhouse (1797)
                   Codium fragile (Suringar) Hariot (1889)
                     Codium fragile subsp. tomentosum Stackhouse (1797) see Codium tomentosum Stackhouse (1797)