[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 Sphacelariales Migula (1908)
           Family Stypocaulaceae Oltmanns (1922)
             1 Genus Halopteris F.T. Kützing (1843)
             2 Genus Stypocaulon F.T. Kützing (1843) see Genus Halopteris F.T. Kützing (1843)