Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Plantae Haeckel (1866) - plants
                           Clade Rhodaria Cavalier-Smith 2021
                             Subkingdom Rhodoplantae G.W.Saunders & Hommers. (2004) [monotypic]
                               Phylum Rhodophyta Wettst. (1901) - red algae
                                 Subphylum Eurhodophytina G.W.Saunders & Hommers. (2004)
                                   Class Florideophyceae Cronquist (1960)
                                     Subclass Rhodymeniophycidae G.W.Saunders & Hommers. (2004)
                                       Order Gigartinales F.Schmitz
                                         Family Catenellopsidaceae P.A. Robins
                                         Family Caulacanthaceae Kützing (1843)
                                         Family Choreocolacaceae
                                         Family Corynocystaceae
                                         Family Dumontiaceae Bory (1828)
                                         Family Endocladiaceae Kylin
                                         Family Gainiaceae
                                         Family Gloiosiphoniaceae
                                         Family Haemeschariaceae R.T. Wilce & Maggs
                                         Family Kallymeniaceae (J.Agardh) Kylin (1928)
                                         Family Schmitziellaceae
                                         Family Tichocarpaceae
                                         Family Wurdemanniaceae [monotypic]
                                         01 ?Family Acrosymphytaceae S.C. Lindstrom
                                         02 ?Family Calosiphoniaceae Kylin (1932)
                                         02.0 [Family "Calosiphonaceae"] see Family Calosiphoniaceae Kylin (1932)
                                         03 Family Cruoriaceae (J.Agardh) Kylin (1928)
                                         04.1 Family Gymnophlaeaceae
                                         04.1.0 [Family "Gymnophlaeceae"] see Family Gymnophlaeaceae
                                         06 Family Petrocelidaceae
                                         07 Family Phyllophoraceae Nägeli (1847)
                                         08 Family Gigartinaceaeᵀ Kützing (1843)
                                         09 Family Chondriellaceae Levring (1941)
                                         10 Family Polyidaceae Kylin (1956), nom. cons.
                                         10.0 [Family "Polyideaceae" Kylin (1956)] see Family Polyidaceae Kylin (1956), nom. cons.
                                         11 Family Nizymeniaceae Womersley (1971)
                                         12 Family Rhizophyllidaceae Schmitz (1889)
                                         13 Family Acrotylaceae Schmitz (1892)
                                         15 Family Sphaerococcaceae Schmitz & Hauptfleisch
                                         16 Family Phacelocarpaceae Searles (1968)
                                         18 Family Furcellariaceae Kylin (1932)
                                         19.1 Family Solieriaceae Agardh (1876)
                                         19.2 Family Areschougiaceae J.Agardh (1876)
                                         20 Family Hypneaceae J.Agardh (1851)
                                         21 Family Rissoellaceae Kylin [monotypic]
                                         22 Family Rhabdoniaceae
                                         23 Family Cubiculosporaceae Kraft (1973) [monotypic]
                                         24 Family Cystocloniaceae Kützing (1843)
                                         24.0 [Family Rhodophyllidaceae] see Family Cystocloniaceae Kützing (1843)
                                         25 Family Mychodeaceae Kylin (1932)
                                         26 Family Mychodeophyllaceae Kraft (1978)
                                         27 Family Dicranemataceae Kylin (1932)
                                         27.0 [Family Dicranemaceae] see Family Dicranemataceae Kylin (1932)
                                         28 Family Blinksiaceae Hollenberg & Abbott (1968) [monotypic]