Phylum Parabasalia Honigberg, 1973 see Infraphylum Parabasalia Honigberg, 1973 Class Trichomonadea Kirby, 1947 1 Order Trichomonadida Kirby, 1947 - trichomonads 2 Order Honigbergiellida Cepicka, Hampl & Kulda, 2010 see Suborder Honigbergiellina Čepička et al., 2010