[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 Tilopteridales Bessey (1907)
           Family Tilopteridaceae Kjellman (1890)
             1 Genus Haplospora F.R. Kjellman (1872)
             2 Genus Tilopteris F.T. Kützing (1849)