Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Phylum Acritarcha †
- Phylum Algae (awaiting allocation)
- Phylum Algae incertae sedis
- Phylum Anthocerotophyta
- Phylum Bryophyta
- Phylum Calcitarcha †
- Phylum Charophyta
- Phylum Chlorophyta
- Subdivision Chlorophytina
- Class Bryopsidophyceae accepted as Ulvophyceae
- Class Chlorodendrophyceae
- Class Chlorophyceae
- Order Chaetopeltidales
- Order Chaetophorales
- Order Chlamydomonadales
- Order Chlorococcales accepted as Chlamydomonadales
- Order Chlorophyceae (awaiting allocation)
- Order Chlorophyceae incertae sedis
- Order Chlorosarcinales accepted as Chlamydomonadales
- Order Microsporales accepted as Sphaeropleales
- Order Oedogoniales
- Order Receptaculitales †
- Order Receptaculitida † accepted as Receptaculitales †
- Order Sphaeropleales
- Family Ankistrodesmaceae Korshikov, 1953 accepted as Selenastraceae
- Family Bracteacoccaceae
- Family Bracteamorphaceae K. Fučíková, P.O. Lewis & L.A. Lewis, 2014
- Family Chaetopediaceae Skuja, 1948 accepted as Radiococcaceae Fott ex Komárek
- Family Characiaceae
- Family Chromochloridaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Coelastraceae accepted as Scenedesmaceae Oltmanns, 1904
- Family Cylindrocapsaceae N. Wille in Warming, 1884
- Family Dictyochloridaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Dictyococcaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Gloeocystaceae accepted as Radiococcaceae Fott ex Komárek
- Family Golenkiniaceae (Korshikov) Komárek, 1979 accepted as Neochloridaceae Ettl & Komárek, 1982
- Family Hydrodictyaceae
- Family Microsporaceae
- Family Mychonastaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Neochloridaceae Ettl & Komárek, 1982
- Family Nephrocytiaceae T.S. Garcia da Silva, I.L. Bagatini & L. Štenclová in Garcia da Silva et al., 2022
- Family Palmodictyaceae accepted as Radiococcaceae Fott ex Komárek
- Family Pseudomuriellaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Radiococcaceae Fott ex Komárek
- Family Radiofilaceae accepted as Sphaeropleaceae
- Family Rotundellaceae K. Fučíková, P.O. Lewis & L.A. Lewis, 2014
- Family Scenedesmaceae Oltmanns, 1904
- Family Schizochlamydaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Schroederiaceae K. Fuciková, P.O. Lewis & L.A. Lewis, 2014
- Family Scotiellocystoidaceae (Fott, 1976) P.M. Tsarenko, 2005 accepted as Scenedesmaceae Oltmanns, 1904
- Family Selenastraceae
- Family Sphaeropleaceae
- Genus Atractomorpha L.R. Hoffman, 1983
- Species Atractomorpha echinata L.R. Hoffmann, 1983
- Species Atractomorpha porcata Hoffman, 1984
- Genus Botryosphaera R. Chodat, 1916 accepted as Botryosphaerella P.C. Silva, 1970
- Genus Botryosphaerella P.C. Silva, 1970
- Genus Characiopodium G.L. Floyd & S. Watanabe in G.L. Floyd, S. Watanabe & T.R. Deason, 1993
- Genus Radiofilum Schmidle, 1894
- Genus Sphaerogona H.F. Link, 1826
- Genus Sphaeroplea C.A. Agardh, 1824
- Genus Sphaeroplethia Duby, 1830
- Family Sphaeropleales incertae sedis
- Family Treubariaceae (Korshikov) Fott, 1960
- Family Tumidellaceae K. Fučíková, P.O. Lewis & L.A. Lewis, 2014
- Order Tetrasporales accepted as Chlamydomonadales
- Order Volvocales accepted as Chlamydomonadales
- Genus Gloeocystoides [author?] †
- Genus Kahfia A. Le Hérissé, H. Al-Tayyar & H. van der Eem, 1995 †
- Class Pedinophyceae
- Class Pleurastrophyceae accepted as Chlorophyceae
- Class Trebouxiophyceae
- Class Ulvophyceae
- Subdivision Prasinophytina
- Class Chlorophyta (awaiting allocation)
- Class Chloropicophyceae
- Class Picocystophyceae
- Class Prasinophyceae accepted as Prasinophytina
- Genus Archaeochaeta K.M. Maloney, D.P. Maverick, J.D. Schiffbauer, G.P. Halverson, S. Xiao & M. Laflamme, 2023 †
- Genus Archaeophycus F. Wang, X. Zhang & R. Guo, 1983 †
- Genus Characrhynium Krings, 2024 †
- Genus Chordecystia C.B. Foster, 1979 † accepted as Reduviasporonites L.R. Wilson, 1962 †
- Genus Dictyosphaera Y. Xing & K. Liu, 1973 †
- Genus Harpericystis Krings, 2024 †
- Genus Jiuqunaoella M. Chen & Z.Z. Xiao, 1991 †
- Genus Menieria Y. Wang, J. Jin & R. Zhan, 2014 †
- Genus Palambages O. Wetzel, 1961 †
- Genus Paratetraphycus Z. Zhang, 1985 † accepted as Archaeophycus F. Wang, X. Zhang & R. Guo, 1983 †
- Genus Reduviasporonites L.R. Wilson, 1962 †
- Genus Sarcinophycus S. Xiao & A.H. Knoll, 1999 †
- Genus Shuiyousphaeridium Yan in Yan & Zhu, 1992 †
- Genus Sigmopollis R.W. Hedlund, 1965 †
- Genus Sphaerosiphon Schussnig, 1915
- Genus Tetraphycoides F. Cao, 1985 † accepted as Archaeophycus F. Wang, X. Zhang & R. Guo, 1983 †
- Genus Tympanicysta B.E. Balme, 1980 † accepted as Reduviasporonites L.R. Wilson, 1962 †
- Genus Yunnanospirellus Li, Wei, Guo & Cong, 2024 †
- Phylum Eophyta †
- Phylum Glaucophyta
- Phylum Gymnospermophyta accepted as Tracheophyta
- Phylum Horneophyta †
- Phylum Magnoliophyta accepted as Tracheophyta
- Phylum Marchantiophyta
- Phylum Picozoa
- Phylum Plantae (awaiting allocation)
- Phylum Prasinodermatophyta
- Phylum Pteridophyta accepted as Tracheophyta
- Phylum Rhodelphidia
- Phylum Rhodophyta
- Phylum Sporae dispersae †
- Phylum Tracheophyta
- Phylum Vendophyta † accepted as Algae incertae sedis
- Class Nematophyceae † accepted as Nematophyta †
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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