Chromalveolata
Group of eukaryotic organisms / From Wikipedia, the free encyclopedia
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Chromalveolata was a eukaryote supergroup present in a major classification of 2005, then regarded as one of the six major groups within the eukaryotes.[3] It was a refinement of the kingdom Chromista, first proposed by Thomas Cavalier-Smith in 1981. Chromalveolata was proposed to represent the organisms descended from a single secondary endosymbiosis involving a red alga and a bikont.[4] The plastids in these organisms are those that contain chlorophyll c.
Chromalveolata | |
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Clockwise from top-left: a haptophyte (coccolithophore: Emiliania huxleyi), some diatoms, a water mold, a cryptomonad, and Macrocystis, a phaeophyte | |
Scientific classification | |
Domain: | Eukaryota |
(unranked): | Bikonta |
(unranked): | Chromalveolata Adl et al., 2005 (not a monophyletic group)[1][2] |
Phyla | |
However, the monophyly of the Chromalveolata has been rejected. Thus, two papers published in 2008 have phylogenetic trees in which the chromalveolates are split up,[5][6] and recent studies continue to support this view.[7][8]