Kingdom Plantae Haeckel (1866) - plants
   Subkingdom Rhodoplantae G.W.Saunders & Hommers. (2004)
     Phylum Rhodophyta Wettst. (1901) - red algae
       Subphylum Eurhodophytina G.W.Saunders & Hommers. (2004)
         Class Florideophyceae Cronquist (1960)
           Subclass Nemaliophycidae Christensen (1978)
             Order Corallinales P.C.Silva & H.W.Johans. (1986)
               1 Family Corallinaceae Lamouroux (1816)
               2 Family Sporolithaceae Verheij (1993)