Florideophyceae - Gigartinales - Rhodymeniophycidae
Parent taxon: Rhodymeniophycidae according to C. W. Schneider and M. J. Wynne 2007
See also Bucur and Dusa 1986, Parker and Dawson 1965 and Taylor et al. 2008
Sister taxa: Acrosymphytales, Bonnemaisoniales, Ceramiales, Gelidiales, Gracilariales, Halymeniales, Nemastomatales, Peyssonneliales, Plocamiales, Rhodymeniales, Sebdeniales
Subtaxa: Acrotylaceae Areschougiaceae Blinksiaceae Calosiphoniaceae Catenellopsidaceae Caulacanthaceae Chondrides Corynocystaceae Crossocarpaceae Cruoriaceae Cubiculosporaceae Cystocloniaceae Dicranemataceae Dumontiaceae Endocladiaceae Furcellariaceae Gainiaceae Gigartinaceae Gloiosiphoniaceae Haemeschariaceae Kallymeniaceae Mychodeaceae Mychodeophyllaceae Nizymeniaceae Phacelocarpaceae Phyllophoraceae Polyideaceae Rhizophyllidaceae Rissoellaceae Schmitziellaceae Solieriaceae Sphaerococcaceae Tichocarpaceae