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 Ostreobiaceae P.C.Silva
                 Form genus Ostreobium Bornet & Flahault
                   Ostreobium quekettiiᵀ Bornet & Flahault (1889)