eukaryotes see Domain Eukaryota Chatton, 1925 Kingdom Protozoa Goldfuss, 1818 - protozoa Subkingdom Dictyozoa Cavalier-Smith, 1991 Branch Parabasala Honigberg, 1973 Phylum Parabasala Honigberg, 1973 - parabasalids Class Trichomonadea Kirby, 1947 [monotypic] Order Trichomonadida Kirby, 1947 - trichomonads