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• Domain: Eukaryota () - Whittaker & Margulis,1978
  • Kingdom: Protozoa () - (Goldfuss, 1818) R. Owen, 1858 - Protozoa
    • Subkingdom: Biciliata ()
      • Infrakingdom: Alveolata () - Cavalier-Smith, 1991
        • Phylum: Ciliophora () - (Doflein, 1901) Copeland, 1956 - Ciliates
          • Subphylum: Intramacronucleata () - Lynn, 1996
            • Class: Ciliatea () - Bütschli, 1889
              • Subclass: Hypotrichia () - Stein, 1859
                • Order: Hypotrichida () - Small & Lynn, 1985
                  • Suborder: Euplotina () - Small & Lynn, 1985
                    • Family: Euplotidae ()
                      • Genus: Euplotes ()
                        • Specific descriptor: trisulcatus - Kahl, 1925
                          • Scientific name: - Euplotes trisulcatus