
Taxonavigation
Superregnum: Eukaryota
Regnum: Chromista
Subregnum: Harosa 
Infraregnum: Heterokonta 
Phyla: Bigyra – Ochrophyta – Oomycota
Phyla (in synonymy): Heterokontophyta – Pseudofungi
Classes (overview): Actinochrysophyceae – Aurearenophyceae – Bacillariophyceae – Bicoecea – Bigyromonadea – Blastocystea – Bolidophyceae – Chrysomerophyceae – Chrysophyceae – Coscinodiscophyceae – Dictyochophyceae – Eustigmatophyceae – Hyphochytrea – Hyphochytridiomycetes – Labyrinthulomycetes – Nucleohelea – Oomycetes – Opalinea – Peronosporea – Phaeophyceae – Phaeothamniophyceae – Picophagea – Proteromonadea – Raphidophyceae – Schizocladiophyceae – Synchromophyceae – Synurophyceae – Xanthophyceae
Classis (in synonymy): Pelagophyceae – Pinguiophyceae
Name
1. Heterokontae Lüther, 1899
- Synonym
- Xanthophyceae Allorge, 1930, emend. Fritsch, 1935
 
 
2. Heterokonta sensu Copeland, 1956
3. Heterokonta sensu Cavalier-Smith, 1986
- Synonyms
- Stramenopiles Patterson, 1989
 - Heterokontophyta sensu van den Hoek et al., 1995
 - Straminopiles Vørs, 1993
 
 
References
Vernacular names
Alternative classifications
Lüther (1899)
Lüther, A. (1899). Über Chlorosaccus eine neue Gattung der Süsswasseralgen. Bihang til Kongliga Svenska Vetenskaps-Akademiens Handlingar 24: 1–22. From Pascher (1912), p. 9, .
- Class Heterokontae
- Order Chloromonadales
 - Order Confervales
 
 
Pascher (1912)
Pascher, A. 1912 [1913]. Zur Gliederung der Heterokonten (Kieine Beiträge zur Kenntnis unserer Mikroflora 3). Hedwigia, 53: 6–22, .
- Heterokontae
- Heterochloridales
 - Heterocapsales
 - Heterococcales
 - Heterotrichales
 - Heterosiphonales
 
 
Pascher (1939)
Pascher, A. 1939. Heterokonten. In: Rabenhorsts Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2. Aufl. Bd. XI. Leipzig: Akad. Verlagsges (1937–1939). p. 204, 215.
Heterokontae
- Class Heterochloridineae
 - Class Rhizochloridineae
 - Class Hetcrocapsineae
 - Class Heterococcincae
 - Class Hetcrotrichineae
 - Class Heterosiphonineae
 
Copeland (1956)
Copeland, H. F. (1956). The Classification of Lower Organisms. Palo Alto: Pacific Books, pp. 63-67, .
- Kingdom Protoctista
- Phylum Phaeophyta [group similar to Heterokonta sensu Cavalier-Smith]
- Class Heterokonta
- Order Ochomonadalea
 - Order Silicoflagellata
 - Order Vaucheriacea [= Xanthophyceae]
 - Order Choanoflagellata
 - Order Hyphochytrialea
 
 - Class Bacillariacea
 - Class Oomycetes
 - Class Melanophycea [= Phaeophyceae]
 
 - Class Heterokonta
 
 - Phylum Phaeophyta [group similar to Heterokonta sensu Cavalier-Smith]
 
Leedale (1974)
Leedale, G. F. (1974). How many are the kingdoms of organisms? Taxon, 23 (1974), pp. 261–270, . See Whittaker in Kreir (1977),
[“Fan” scheme, p. 269:]
- Prokaryote (Monera)
 - Eukaryote
- Rhodophyta
 - Plantae (Chlorophyta, Charophyta, Bryophyta, Tracheophyta)
 - Heterokonts (Oomycota, Bacillariophyta, Xanthophyta, Chrysophyta, Phaeophyta)
 - Eustigmatophyta
 - Haptophyta
 - Cryptophyta
 - Dinophyta
 - Chytridiomycota
 - Fungi (Zygomycota, Basidiomycota, Ascomycota)
 - Euglenophyta
 - Zoomastigina
 - Myxomycota
 - Sarcodina
 - Ciliophora
 - Sporozoa
 - Porifera
 - Animalia (Coelenterata, Platyhelminthes, Annelida, Mollusca, Arthropoda, Echinodermata, Chordata, etc.)
 - Mesozoa
 
 
Cavalier-Smith (1978)
Cavalier-Smith, T. (1978). The evolutionary origin and phylogeny of microtubules, mitotic spindles and eukaryote flagella. BioSystems, 10(1), 93-114.
- Super-kingdom Eukaryota
- Kingdom 1. Aconta
 - Kingdom 2. Haptophyta
 - Kingdom 3. Cryptophyta
 - Kingdom 4. Heterokonta (Eustigmatophyta, chloromonads, Xanthophyta, biflagellate [=oomycete] fungi, Myxomycetes, hyphochytrid fungi, Phaeophyta, Chrysophyta, chytrid fungi, Actinopoda, Foraminifera, amoeboflagellates, diatoms)
 - Kingdom 5. Corticoflagellata
 - Kingdom 6. Euglenoida
 - Kingdom 7. Chlorophyta
 
 
Cavalier-Smith (1981)
Cavalier-Smith, T. (1981). Eukaryote kingdoms: seven or nine?. Biosystems, 14(3), 461-481, .
Seven eukaryote kingdoms proposal [p. 478]
- Superkingdom Eukaryota
- Kingdom Fungi
 - Kingdom Viridiplantae
 - Kingdom Biliphyta
 - Kingdom Chromista
- Subkingdom Cryptophyta
- Phylum Cryptophyta
 
 - Subkingdom Chromophyta
- Phylum Heterokonta
- Subphylum Chrysophytina 
- Chrysophyceae (including Bicoecida and Silicoflagellida)
 - Xanthophyceae
 - Phaeophyceae
 - Chloromonadophyceae (= Raphidiophyceae)
 
 - Subphylum Phycomycotina (Oomycetes, Hyphochytridiomycetes, Thraustochytrids, Labyrinthulids)
 
 - Subphylum Chrysophytina 
 - Phylum Bacillariophyta
 - Phylum Eustigmatophyta
 - Phylum Haptophyta
 
 - Phylum Heterokonta
 
 - Subkingdom Cryptophyta
 - Kingdom Animalia
 - Kingdom Euglenozoa
 - Kingdom Protozoa
 
 
Cavalier-Smith (1986)
Cavalier-Smith, T. (1986). The kingdom Chromista, origin and systematics. In: Round, F.E. and Chapman, D.J. (eds.). Progress in Phycological Research. 4: 309–347, .
Kingdom Chromista
- Subkingdom Cryptophyta
- Phylum Cryptophyta
 
 - Subkingdom Chromophyta
- Phylum Heterokonta
- Subphylum Ochrista
- Class Synuraceae
 - Class Xanthophyceae
 - Class Chrysophyceae
 - Class Phaeophyceae
 - Class Bicosoecea
 - Class Eustigmatophyceae
 
 - Subphylum Pseudofungi (= Heterkontimycotina)
- Superclass Pythiista
- Class Oomycetes
 - Class Hypochytrea/Hyphochytrea
 
 - Superclass Labyrinthista 
- Class Labyrinthulea
- Order Thraustochytriales
 - Order Labyrinthulales
 
 
 - Class Labyrinthulea
 
 - Superclass Pythiista
 
 - Subphylum Ochrista
 - Phylum Haptophyta
 
 - Phylum Heterokonta
 
Cavalier-Smith (1989)
Cavalier-Smith. T. (1989). The Kingdom Chromista. In: J.C. Green et al. (eds). The Chromophyte Algae: problems and Perspectives, pp. 381-407, .
- Kingdom Chromista
- Subkingdom Cryptista
 - Subkingdom Chromophyta
- Phylum Heterokonta
- Subphylum Ochrista
 - Subphylum Bicoecia
 - Subphylum Pseudofungi ("Not now a synonym for Heterokontimycotina Dick 1976.") 
- Class Pythiistea
 
 - Subphylum Labyrinthista Cavalier-Smith 1986. stat. nov.
- Class Labyrinthulea
 
 
 - Phylum Haptomonada
 
 - Phylum Heterokonta
 
 
Cavalier-Smith (1993)
From Kingdom Protozoa and its 18 phyla,
- 
- 
- Heterokonta
 
- 
- 
- Chrysophycea
 - Flavoretea
 - Xanthophycea (= Tribophyceae)
 - Phaeophycea (= Melanophyceae, Fucophyceae)
 
 
- Pythiistea
 
- Oomycetidae
 - Hyphochytridae
 
 - 
 
 
 - 
 
Cavalier-Smith et al. (1995)
Cavalier-Smith T., Chao E. E., Allsopp M. T. E. P. (1995) Ribosomal RNA evidence for chloroplast loss within Heterokonta: pedinellid relationships and a revised classification of ochristan algae. Arch. Protistenkd. 145: 209–220.
- Phylum Heterokonta
- Subphylum Ochrista
- Infraphylum Raphidoista
- Superclass Raphidomonadia 
- Class Raphidomonadea
 
 - Superclass Sarcinochrysia Cavalier-Smith 1995 
- Class Sarcinochrysea Cavalier-Smith 1995
 
 - Superclass Dictyochia Cavalier-Smith, 1993
- Class. 1. Pelagophycea Andersen & Saunders 1993 orthog. emend. Cavalier-Smith 1993 
- Order Pelagomonadales Andersen & Saunders 1993 
- Family Pelagomonadaceae Andersen & Saunders 1993
 
 
 - Order Pelagomonadales Andersen & Saunders 1993 
 - Class. 2. Actinochrysea Cavalier-Smith 1995 
- Subclass 1. Pedinellidae Cavalier-Smith 1986 stat. nov. 1995 
- Order 1. Pedinellales Zimmermann, Moestrup & Hallfors 1984 emend. Cavalier-Smith 1995 
- Family 1. Pedinellaceae Pascher 1910 emend. Cavalier-Smith 1995
 - Family 2. Apedinellaceae Cavalier-Smith 1995
 
 - Order 2. Ciliophryales Cavalier-Smith 1995 
- Family 1. Ciliophryaceae Poche 1913 orthog. emend. Cavalier-Smith 1995
 - Family 2. Actinomonadaceae Saville Kent 1880 orthog. emend. Cavalier-Smith 1995
 
 
 - Order 1. Pedinellales Zimmermann, Moestrup & Hallfors 1984 emend. Cavalier-Smith 1995 
 - Subclass 2. Dictyochidae Haeckel 1894 stat. nov. Cavalier-Smith 1995 
- Order 1. Silicoflagellales Borgert 1891 (syn. Dictyochales) 
- Family Dictyochaceae Lemmermann 1901
 
 - Order 2. Rhizochromulinales O'kelly & Wujek 1994 
- Family Rhizochromulinaceae O'kelly & Wujek 1994
 
 
 - Order 1. Silicoflagellales Borgert 1891 (syn. Dictyochales) 
 
 - Subclass 1. Pedinellidae Cavalier-Smith 1986 stat. nov. 1995 
 
 - Class. 1. Pelagophycea Andersen & Saunders 1993 orthog. emend. Cavalier-Smith 1993 
 
 - Superclass Raphidomonadia 
 - Infraphylum Chrysista Cavalier-Smith 1986 stat. nov. 1993
- Superclass 1. Phagochrysia supercl. nov. T. Cavalier-Smith 1995 
- Class 1. Chrysophycea Pascher Ex Hibberd 1976 orthog. emend. Cavalier-Smith 1989.
- Subclass 1. Chrysomonadidae Saville Kent 1881 stat. nov. Cavalier-Smith 1993
 - Subclass 2. Synuridae Cavalier-Smith 1986 stat. nov. 1989
 
 - Class 2. Flavoretea Cavalier-Smith 1993
 
 - Class 1. Chrysophycea Pascher Ex Hibberd 1976 orthog. emend. Cavalier-Smith 1989.
 - Superclass 2. Fucistia supercl. nov. T. Cavalier-Smith 1995 
- Class 1. Chrysomerophycea cl. nov. T. Cavalier-Smith 1995
 - Class 2. Xanthophycea Allorge & Fritsch 1935 orthog. emend. Cavalier-Smith 1989.
- Subclass 1. Rhizochloridae Cavalier-Smith 1993
 - Subclass2. Tribophycidae Cavalier-Smith 1993
 
 - Class 3. Phaeophycea Kjellman 1891 orthog. emend. Cavalier-Smith 1989.
- Subclass 1. Phaeophycidae Cavalier-Smith 1986
 - Subclass 2. Fucophycidae Cavalier-Smith 1986
 
 
 
 - Superclass 1. Phagochrysia supercl. nov. T. Cavalier-Smith 1995 
 
 - Infraphylum Raphidoista
 - omycetes
 - bicoecids
 - labyrinthulids
 
 - Subphylum Ochrista
 
Cavalier-Smith & Chao (1996)
Cavalier-Smith T., Chao E. E. (1996) 18S rRNA sequence of Heterosigma carterae (Raphidophyceae), and the phylogeny of heterokont algae (Ochrophyta). Phycologia 35: 500–510 Abstract DOI: 10.2216/i0031-8884-35-6-500.1
Kingdom Chromista
- Subkingdom Cryptista
- Phylum Cryptophyta
- Class Cryptophyceae (syn. Cryptomonadea)
 - Class Goniomonadea
 
 
 - Phylum Cryptophyta
 - Subkingdom Chromobiota (Cavalier-Smith 1991)
- [unplaced group]
- Phylum Haptophyta
 
 - Infrakingdom Heterokonta
- Phylum Pseudofungi (oomycetes and hyphochytrids)
 - Phylum Sagenista
- Class Labyrinthulea
 - Class Bicoecea
 
 - Phylum Ochrophyta Cavalier-Smith 1986 stat. nov. 1995 (syn. Ochrista Cavalier-Smith 1986 stat. nov. 1995)
- Subphylum 1. Phaeista Cavalier-Smith 1995
- Infraphylum 1. Hypogyrista Cavalier-Smith 1995
- Superclass 1. Sarcinochrysia Cavalier-Smith 1995
- Class 1. Sarcinochrysophyceae orthog. mut. pro Sarcinochrysea Cavalier-Smith 1995
 
 - Superclass 2. Dictyochia Haeckel 1894 emend. stat. nov. Cavalier-Smith 1993
- Class 1. Pelagophyceae Andersen et Saunders in Andersen et at. 1993
 - Class 2. Actinochrysophyceae Cavalier-Smith in Cavalier-Smith, Chao et Allsopp 1995 (original spelling Actinochrysea)
- Subclass 1. Pedinellidae Cavalier-Smith 1986 stat. nov. 1995 (= Pedinellophycidae)
- Order Rhizochromulinales
 - Order Ciliophryales (family Ciliophryaceae)
 - Order Pedinellales (families Pedinellaceae, Apedinellaceae and Actinomonadaceae)
 
 - Subclass 2. Silicophycidae Rothmaler stat. nov. Cavalier-Smith 1996 (= class Dictyochophyceae Silva 1980)
 
 - Subclass 1. Pedinellidae Cavalier-Smith 1986 stat. nov. 1995 (= Pedinellophycidae)
 
 
 - Superclass 1. Sarcinochrysia Cavalier-Smith 1995
 - Infraphylum 2. Chrysista Cavalier-Smith 1986 stat. nov. Cavalier-Smith 1995
- Superclass 1. Limnistia supercl. nov. Cavalier-Smith 1996
- Class 1. Raphidophyceae Chadefaud ex Silva 1980 (syns. Chloromonadea, Raphidomonadea)
- Subclass 1. Raphidophycidae pro Raphidochlorophycidae Cavalier-Smith 1993
 - Subclass 2. Raphidochrysophycidae Cavalier-Smith 1993
 
 - Class 2. Eustigmatophyceae Hibberd et Leedale 1971
 - Class 3. Chrysophyceae Pascher ex Hibberd 1976
- Subclass 1. Chrysophycidae Cavalier-Smith 1989 (syn. Chrysomonadidae Kent 1881 stat. nov. Cavalier-Smith 1993)
 - Subclass 2. Synurophycidae Cavalier-Smith 1986 stat. nov. 1989 (= class Synurea Cavalier-Smith 1986; Synurophyceae Andersen 1987)
 - Subclass 3. Leucophycidae subcl. nov. Cavalier-Smith 1996
- Order Paraphysomonadales Cavalier-Smith in Cavalier-Smith et ai. 1996
- Family Spumellaceae Kent 1880-1881 (genera Spumella Cienkowski 1870 and Paraphysomonas De Saedeleer 1929
 
 
 - Order Paraphysomonadales Cavalier-Smith in Cavalier-Smith et ai. 1996
 
 - Class 4. Oikomonadea Cavalier-Smith 1996
 
 - Class 1. Raphidophyceae Chadefaud ex Silva 1980 (syns. Chloromonadea, Raphidomonadea)
 - Superclass 2. Fucistia Cavalier-Smith 1995
- Class 1. Chrysomerophyceae Cavalier-Smith 1995
 - Class 2. Xanthophyceae Allorge ex Fritsch 1935 (syn. Tribophyceae Hibberd 1992)
- Subclass 1. Rhizochlorophycidae Cavalier-Smith 1993
 - Subclass 2. Tribophycidae Cavalier-Smith 1993
 
 - Class 3. Phaeophyceae Kjellman 1891 (syn. Melanophyceae Rabenhorst 1863, Fucophyceae Warming 1884)
- Subclass 1. Phaeophycidae Cavalier-Smith 1986
 - Subclass 2. Fucophycidae Cavalier-Smith 1986
 
 
 
 - Superclass 1. Limnistia supercl. nov. Cavalier-Smith 1996
 
 - Infraphylum 1. Hypogyrista Cavalier-Smith 1995
 - Subphylum 2. Diatomeae Dumortier 1822 stat. nov. Cavalier-Smith 1995
- Class 1. Centricophyceae Schutt 1896 (original orthog. Centricae) stat. nov. Cavalier-Smith 1993 (as Centricea) (syns. Centrobacillariophyceae Silva 1962, Coscinodiscophyceae Round et Crawford 1990)
- Subclass 1. Eucentricophycidae Cavalier-Smith 1993
 - Subclass 2. Corethrophycidae Round et Crawford 1990
 - Subclass 3. Rhizosoleniophycidae Round et Crawford 1990
 
 - Class 2. Pennatophyceae Schütt 1896 (original orthog. Pennatae) stat. nov. Cavalier-Smith 1 993 (as Pennatea) (syn. Pennatobacillariophyceae Silva 1962)
- Subclass 1. Fragilariophycidae Round 1990
 - Subclass 2. Raphophycidae orth. mut. pro Raphoidae Cavalier-Smith 1993
 
 
 - Class 1. Centricophyceae Schutt 1896 (original orthog. Centricae) stat. nov. Cavalier-Smith 1993 (as Centricea) (syns. Centrobacillariophyceae Silva 1962, Coscinodiscophyceae Round et Crawford 1990)
 
 - Subphylum 1. Phaeista Cavalier-Smith 1995
 
 
 - [unplaced group]
 
Cavalier-Smith (1998)
From A revised six-kingdom system of life,
- 
- Heterokonta
 
- 
- Ochrophyta (= Ochrista)
 
- 
- Hypogyrista (e.g., pedinellids, silicoflagellates, pelagophytes)
 - Chrysista
 
- Phaeistia (e.g., brown algae, xanthophytes, Chrysomeris)
 - Limnistia (e.g., chrysophytes, eustigs, Oikomonas, raphidophytes)
 
 
- Bigyromonada
 - Pseudofungi (oomycetes, hyphochytrids)
 - Opalinata
 
 
 
Dick (2001)
Dick, M. W. (2001). Straminipilous fungi. Dordrecht, the Netherlands: Kluwer Academic Publishers. 670 p., .
- Kingdom Straminipila (= Kingdom Chromista)
- Subkingdom Chromophyta
- Phylum Heterokonta 
- Subphylum Ochrista
 - Subphylum Bicoecia
 - Subphylum Labyrinthista
- Class Labyrinthista (= Labyrinthulomycetes)
- Order Labyrinthulales
 - Order Thraustochytriales
 
 
 - Class Labyrinthista (= Labyrinthulomycetes)
 - Subphylum Peronosporomycotina (= Pseudofungi, Heterokontimycotina pro parte majore)
- Class Peronosporomycetes 
- Subclass Peronosporomycetidae
- Order Peronosporales
 - Order Pythiales
 
 - Subclass Rhipidiomycetidae
- Order Rhipidiales
 
 - Subclass Saprolegniomycetidae
- Order Saprolegniales
 - Order Sclerosporales
 - Order Leptomitales
 - Order Salilagenidiales
 
 
 - Subclass Peronosporomycetidae
 - Class Hyphochytriomycetes
- Subclass Hyphochytriomycetidae
- Order Hyphochytriales
 
 
 - Subclass Hyphochytriomycetidae
 
 - Class Peronosporomycetes 
 
 - Phylum Haptomonada
 
 - Phylum Heterokonta 
 - Subkingdom Cryptista
- Phylum Cryptista
 
 
 - Subkingdom Chromophyta
 - Incertae sedis
- Class Plasmodiophoromycetes
 
 
Hausmann et al. (2003)
From Hausmann, K., N. Hulsmann, R. Radek. Protistology. Schweizerbart'sche Verlagsbuchshandlung, Stuttgart, 2003.
- Prymnesiomonada (= Haptomonada, Haptophyta)
 - Cryptomonada
 - Heterokonta
 
- Proteromonadea
 - Opalinea
 - Chrysomonadea
 
- Chrysomonadida
 - Pedinellida
 - Silicoflagellida (= Dictyochales)
 
- Bacillariophyceae (= Diatomeae)
 - Heteromonadea (= Xanthophyceae)
 - Eustigmatophyceae
 - Labyrinthulea (= Labyrinthulomycota)
 - Raphidomonadea (= Chloromonadea)
 - Bicosoecidea
 - Hyphochytriomycetes
 - Oomycetes
 
Cavalier-Smith & Chao (2006)
From Thomas Cavalier-Smith & Ema E-Y. Chao: Phylogeny and megasystematics of phagotrophic heterokonts (kingdom Chromista). Supplementary material (PDF)
- Heterokonta
- Ochrophyta
- Phaeista
- Limnista
- Eustigmatophyceae
 - Chrysomonadea (= Chrysophyceae)
 - Picophagea
 
 - Marista
 
 - Limnista
 - Khakista
 
 - Phaeista
 - Pseudofungi
 - Bigyra
 
 - Ochrophyta
 
Margulis & Chapman (2009)
Margulis, L., M.J. Chapman. Kingdoms and Domains: An Illustrated Guide to the Phyla of Life on Earth. Fourth edition. Amsterdam: Academic Press/Elsevier, 2009.
- Superkingdom Eukarya
- Kingdom Protoctista
- Subkingdom Heterokonta 
- Phylum Bicosoecida
 - Phylum Jakobida
 - Phylum Proteromonadida
 - Phylum Kinetoplastida
 - Phylum Euglenida
 - Phylum Hemimastigota
 - Phylum Hyphochytriomycota
 - Phylum Chrysomonada
 - Phylum Xanthophyta
 - Phylum Phaeophyta
 - Phylum Bacillariophyta
 - Phylum Labyrinthulata
 - Phylum Plasmodiophora
 - Phylum Oomycota
 
 
 - Subkingdom Heterokonta 
 
 - Kingdom Protoctista
 
Cavalier-Smith & Scoble (2013)
Cavalier-Smith, T & Scoble, J. M. (2013). Phylogeny of Heterokonta: Incisomonas marina, a uniciliate gliding opalozoan related to Solenicola (Nanomonadea), and evidence that Actinophryida evolved from raphidophytes. European Journal of Protistology 49: 328–353, .
Infrakingdom Heterokonta
- Superphylum Gyrista Cavalier-Smith 1998
- Phylum Ochrophyta
- Phaeista
- Chrysista
- Marista
- Raphidomonadea
- Actinophryida
 - Raphidophycidae
 
 - Fucistia
- Phaeophyceae
 - Chrysomerophyceae
 - Aurophyceae
 - Xanthophyceae
 
 
 - Raphidomonadea
 - Limnista
- Phagochrysia
 - Eustigmista
 
 
 - Marista
 - Hypogyrista
- Alophycidae
 - Sulcophycidae
 
 
 - Chrysista
 - Khakista
 
 - Phaeista
 - Phylum Pseudofungi
- Oomycetes
- Oogametia
 - Eogamia
 
 - Hyphochytrea
 - Bigyromonadea
 
 - Oomycetes
 
 - Phylum Ochrophyta
 - Superphylum [?]
- Phylum Bigyra Cavalier-Smith 1998
- Subphylum Opalozoa Cavalier-Smith 1991 emend. stat. nov. 2006
- Infraphylum Bikosia Cavalier-Smith 2013
- Class Bikosea Cavalier-Smith 2013 nom. n. pro Bicosoecea Cavalier-Smith, 1986
 
 - Infraphylum Placidozoa Cavalier-Smith 2013
- Superclass Wobblata Cavalier-Smith, 2006 2013
- Class Placididea Moriya et al., 2002
 - Class Nanomonadea Cavalier-Smith 2013
 - Class Opalomonadea Cavalier-Smith, 2013
 
 - Superclass Opalinata Wenyon, 1926 em. Cavalier-Smith, 1996 stat. n. 2006
- Class Opalinea Wenyon, 1926 stat. n. Cavalier-Smith, 1993 em. 2013
 - Class Blastocystea Zierdt et al., 1967
 
 
 - Superclass Wobblata Cavalier-Smith, 2006 2013
 
 - Infraphylum Bikosia Cavalier-Smith 2013
 - Subphylum Sagenista Cavalier-Smith 1995 stat. nov. 2006
- Class Labyrinthulea (Lister 1891) Olive ex Cavalier-Smith 1986
 - Class Eogyrea Cavalier-Smith, 2013
 
 - Bigyra incertae sedis
 
 - Subphylum Opalozoa Cavalier-Smith 1991 emend. stat. nov. 2006
 
 - Phylum Bigyra Cavalier-Smith 1998
 
Ruggiero et al. (2015)
Ruggiero, M.A., Gordon, D.P., Orrell, T.M., Bailly, N., Bourgoin, T., Brusca, R.C., Cavalier-Smith, T., Guiry, M. D. & Kirk, P. M. (2015). A Higher Level Classification of All Living Organisms. PLoS ONE 10(4): e0119248, .
- Superkingdom Prokaryota
- Kingdom Archaea [= Archaebacteria]
 - Kingdom Bacteria [= Eubacteria]
 
 - Superkingdom Eukaryota
- Kingdom Protozoa
- Subkingdom Eozoa
- Infrakingdom Euglenozoa
 - Infrakingdom Excavata
 
 - Subkingdom Sarcomastigota
- Phylum Amoebozoa
 - Phylum Choanozoa [with Microsporidia, Animalia, and Fungi constitutes "Supergroup Opisthokonta"]
 - Phylum Microsporidia [with Choanozoa, Animalia, and Fungi constitutes "Supergroup Opisthokonta"]
 - Phylum Sulcozoa
 
 
 - Subkingdom Eozoa
 - Kingdom Chromista
- Subkingdom Hacrobia
 - Subkingdom Harosa [= "Supergroup SAR"]
- Infrakingdom Halvaria
- Superphylum Alveolata
 - Superphylum Heterokonta [= "Supergroup Stramenopiles"]
- Phylum Bigyra
 - Phylum Ochrophyta [= Heterokontophyta p.p.]
 - Phylum Pseudofungi [= Oomycota]
 
 
 - Infrakingdom Rhizaria
 
 - Infrakingdom Halvaria
 
 - Kingdom Fungi
 - Kingdom Plantae [= Archaeplastida]
 - Kingdom Animalia
 
 - Kingdom Protozoa