| unranked_regnum = Corticata | regnum = Chromalveolata* | subdivision_ranks = Phyla | subdivision = *Heterokontophyta Haptophyta Cryptophyta Alveolata (superphylum) Ciliophora Apicomplexa Dinoflagellata }} Chromalveolata's a eukaryote supergroup first proposed by Thomas Cavalier-Smith as a refinement of his kingdom Chromista, which was first proposed in 1981. It was proposed to represent the result of a single secondary endosymbiosis of a line descending from a bikont with a red alga that… (More on Chromalveolate)