Pflanzenreich Haeckel (1866) - plants
   Division Euthallophyta
     Subdivision Euphyceae
       Class Rhodophyceae Thuret (1855) - red algae see Phylum Rhodophyta Wettst. (1901)
         Subclass Florideae
           Series Rhodymeniales F.Schmitz
             1 Family Sphaerococcaceae Schmitz & Hauptfleisch
             2 Family Rhodymeniaceae Harvey (1849)
             3 Family Delesseriaceae Bory (1828)
             4 Family Bonnemaisoniaceae Schmitz (1892)
             5 Family Rhodomelaceae Horan. (1847), nom. cons.
             6 Family Ceramiaceae Dumort. (1822)