Parabasalid
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The parabasalids are a group of flagellated protists within the supergroup Excavata. Most of these eukaryotic organisms form a symbiotic relationship in animals. Wikipedia
Lower classifications: Pentatrichomonas hominis, Trichomonas vaginalis, Dientamoeba fragilis, and more
Phylum: Metamonada
Scientific name: Parabasalia
Subphylum: Trichozoa