Chromalveolata
Chromalveolata was a eukaryote supergroup present in a major classification of 2005, then regarded as one of the six major groups within the eukaryotes. 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. The plastids in these organisms are those that contain chlorophyll c.
| Chromalveolata | |
|---|---|
| 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) |
| 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, and recent studies continue to support this view.
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