chromalveolates see Supergroup Chromalveolata Adl et al., 2005 Kingdom Protozoa Goldfuss, 1818 - protozoa Infrakingdom Alveolata Cavalier-Smith, 1991 see [unranked] Alveolata Cavalier-Smith, 1991 Phylum Ciliophora Doflein, 1901 - ciliates Subphylum Intramacronucleata Lynn, 1996 - amphiesmates Infraphylum Ventrata Cavalier-Smith, 2004 Class Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans Genus Tetrahymena Furgason, 1940