[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Algae L. (1753) see [unranked] Algae
     Phylum Rhodophycota
       Class Rhodophyceae Thuret (1855) - red algae see Phylum Rhodophyta Wettst. (1901)
         Order Gigartinales F.Schmitz
           Family Calosiphonaceae see Family Calosiphoniaceae Kylin (1932)
             1 Genus Calosiphonia H.M. Crouan & P.L. Crouan (1852)
             2 Genus Schmitzia P.C.Silva (1959)