[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Algae L. (1753) see [unranked] Algae
     Phylum Phaeophycota see Class Phaeophyceae Hansgirg (1886)
       Class Phaeophyceae Hansgirg (1886) - brown algae
         Order Dictyosiphonales
           Family Pogotrichiaceae
             Genus Omphalophyllum L.K. Rosenvinge (1893)
               1 Omphalophyllum ulvaceum Rosenvinge (1893)