[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 Chordariales
           Family Chordariaceae Grev. (1830)
             Genus Strepsithalia E. Bornet ex C. Sauvageau (1896)
               1 Strepsithalia buffhamiana (Batters) Batters (1902)
               2 Strepsithalia curvata Sauvageau (1896)
               3 Strepsithalia liagorae Sauvageau (1896)
               4 Strepsithalia liebmanniae Miranda (1928)