living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Rhodophycota see Phylum Rhodophyta Wettst. (1901)
           Class Rhodophyceae Thuret (1855) - red algae see Phylum Rhodophyta Wettst. (1901)
             Subclass Florideophycideae see Class Florideophyceae Cronquist (1960)
               Order Nemaliales F.Schmitz (1892)
                 01 Family Acrochaetiaceae Melch. (1954), nom. cons.
                 02 Family Batrachospermaceae E.M.Fries (1825)
                 03 Family Lemaneaceae
                 04 Family Thoreaceae
                 05 Family Helminthocladiaceae see Family Liagoraceae Kützing (1843)
                 06 Family Nemaliaceae see Family Liagoraceae Kützing (1843)
                 07 Family Dermatonemataceae see Family Liagoraceae Kützing (1843)
                 08 Family Chaetangiaceae
                 09 Family Naccariaceae Kylin (1928)
                 10 Family Bonnemaisoniaceae Schmitz (1892)
                 11 Family Gelidiaceae Kützing (1843)
                 12 Family Gelidiellaceae Fan (1961)
                 13 Family Wurdemanniaceae