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Organism
  Chromista
         [Microbe]
                    Aulacoseirales
                    Bacillariales
                    Biddulphiales
      Cercozoa
            Imbricatea
                    Testaceafilosida
                            Psammonobiotidae
            Thecofilosea
                    Phaeocalpida
                            Castanellidae
                    Chattonellales
      Chrysophyta
            Bacillariophyceae
                    Achnanthales
                          Acteonoidea
                            Acteonidae
                            Aplustridae
                            Arctomiaceae
                            Arenicolidae
                            Arthopyreniaceae
                            Arthrorhaphidaceae
                            Barentsiidae
                            Brigantiaeaceae
                            Capitellidae
                            Carinomidae
                            Cassiopidae
                    Centrales
                            Aulacoseiraceae
                            Biddulphiaceae
                            Chaetocerotaceae
                            Coscinodiscaceae
                            Heliopeltaceae
                            Hemidiscaceae
                            Melosiraceae
                            Orthoseiraceae
                            Paraliaceae
                            Rhizosoleniaceae
                            Skeletonemataceae
                            Stephanodiscaceae
                            Thalassiosiraceae
                            Triceratiaceae
                    Centrohelida
                            Acanthocystidae
                            Cephalothricidae
                          Cerithioidea
                            Cerithiidae
                            Eustomatidae
                            Modulidae
                            Planaxidae
                            Pleuroceridae
                            Semisulcospiridae
                            Thiaridae
                            Turritellidae
                    Chaetocerotales
                            Chaetopteridae
                            Coniocybaceae
                            Cossuridae
                          Cuspidarioidea
                            Cuspidariidae
                          Cyamioidea
                            Dacampiaceae
                          Eoacmaeoidea
                            Eoacmaeidae
                          Epitonioidea
                            Epitoniidae
                            Eremomycetaceae
              Fragilariophycidae
                    Fragilariales
                    Licmophorales
                            Ulnariaceae
                            Fuscideaceae
                          Galeommatoidea
                            Basterotiidae
                            Galeommatidae
                            Lasaeidae
                            Harrimaniidae
                            Hymeneliaceae
                    Lahmiales
                            Lahmiaceae
                            Lecideaceae
                          Lottioidea
                            Lepetidae
                            Lottiidae
                          Lymnaeoidea
                            Acroloxidae
                            Lymnaeidae
                            Physidae
                            Planorbidae
                          Mactroidea
                            Mactridae
                            Magelonidae
                            Maldanidae
                            Mastodiaceae
                            Microcaliciaceae
                          Murchisonelloidea
                            Murchisonellidae
                            Mycoporaceae
                            Myxotrichaceae
                            Naetrocymbaceae
                    Naviculales
                            Opheliidae
                            Orbiniidae
                          Oxynooidea
                            Cylindrobullidae
                          Pandoroidea
                            Lyonsiidae
                            Pandoridae
                            Paraonidae
                    Pennales
                            Achnanthaceae
                            Achnanthidiaceae
                            Amphipleuraceae
                            Anomoeoneidaceae
                            Bacillariaceae
                            Berkeleyaceae
                            Brachysiraceae
                            Catenulaceae
                            Cavinulaceae
                            Cocconeidaceae
                            Cosmioneidaceae
                            Cymbellaceae
                            Diadesmidaceae
                            Diatomaceae
                            Diploneidaceae
                            Entomoneidaceae
                            Eunotiaceae
                            Fragilariaceae
                            Gomphonemataceae
                            Licmophoraceae
                            Lyrellaceae
                            Mastogloiaceae
                            Naviculaceae
                            Neidiaceae
                            Peroniaceae
                            Pinnulariaceae
                            Plagiotropidaceae
                            Pleurosigmataceae
                            Proschkiniaceae
                            Rhoicospheniaceae
                            Rhopalodiaceae
                            Scoliotropidaceae
                            Sellaphoraceae
                            Stauroneidaceae
                            Surirellaceae
                            Phyllogoniaceae
                            Pithonellidae
                          Plakobranchoidea
                            Limapontiidae
                            Plakobranchidae
                            Pleuroziopsaceae
                            Polygordiidae
                    Prolecithophora
                            Plagiostomidae
                            Protodrilidae
                            Protothelenellaceae
                            Psammodrilidae
                            Ptychoderidae
                          Pyramidelloidea
                            Pyramidellidae
                            Rhizocarpaceae
                          Ringiculoidea
                            Ringiculidae
                            Ropalosporaceae
                            Sabellariidae
                            Saccocirridae
                            Sarrameanaceae
                            Scalibregmatidae
                            Schaereriaceae
                            Spengelidae
                            Sporastatiaceae
                            Thelenellaceae
                            Thelocarpaceae
                          Thracioidea
                            Periplomatidae
                            Thraciidae
                            Travisiidae
                    Tricladida
                          Bdellouroidea
                            Bdellouridae
                          Geoplanoidea
                            Dugesiidae
                          Planarioidea
                            Dendrocoelidae
                            Kenkiidae
                            Planariidae
                          Triphoroidea
                            Cerithiopsidae
                            Newtoniellidae
                            Triphoridae
                            Tubulanidae
                          Valvatoidea
                            Valvatidae
                          Verticordioidea
                            Verticordiidae
                            Vezdaeaceae
            Chrysophyceae
                    Chromulinales
                            Chromulinaceae
                            Dinobryaceae
                            Paraphysomonadaceae
                    Dictyochales
                            Dictyochaceae
                    Hibberdiales
                            Stylococcaceae
                    Hydrurales
                            Hydruraceae
            Prymnesiophyceae
                    Prymnesiales
                            Prymnesiaceae
            Synurophyceae
                    Synurales
                            Mallomonadaceae
                            Synuraceae
                            Tabellariaceae
            Tribophyceae
                    Mischococcales
                            Centritractaceae
                            Ophiocytiaceae
                            Pleurochloridaceae
                    Rhizochloridales
                            Stipitococcaceae
                    Tribonematales
                            Tribonemataceae
                    Vaucheriales
                            Botrydiaceae
                            Vaucheriaceae
      Ciliophora
            Colpodea
                    Cyrtolophosidida
                            Sagittariidae
            Gymnostomatea
                    Spathidiida
                            Spathidiidae
                    Coscinodiscales
      Cryptista
      Cryptophyta
             [Algae]
            Cryptophyceae
                    Cryptomonadales
                            Cryptomonadaceae
                    Pyrenomonadales
                            Chroomonadaceae
                            Pyrenomonadaceae
                    Cymbellales
                    Eunotiales
      Foraminifera
            Globothalamea
                    Rotaliida
                          Nummulitoidea
                            Nummulitidae
            Monothalamea
                    Allogromiida
                            Lagynidae
                    Astrorhizida
                          Astrorhizoidea
                            Astrorhizidae
      Haptophyta
            Coccolithophyceae
      Heterokontophyta
             [Algae]
            Raphidophyceae
                    Raphidmonadales
                            Vacuolariaceae
                    Lyrellales
                    Mastogloiales
                    Meloseirales
      Miozoa
      Ochrophyta
            Xanthophyceae
                    Orthoseirales
                    Paraliales
      Phaeophyta
            Phaeophyceae
                   [Algae]
                    Ectocarpales
                            Phaeostrophiaceae
      Pyrrhophyta
             [Algae]
            Dinophyceae
                    Blastodiniales
                            Ceratiaceae
                    Gymnodiniales
                            Gymnodiniaceae
                    Peridiniales
                            Dinosphaeraceae
                            Hemidiniaceae
                            Peridiniaceae
                    Rhizosoleniales
                    Rhopalodiales
                    Surirellales
                    Tabellariales
                    Thalassiosirales
                    Triceratiales