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• Domain: Eukaryota () - Whittaker & Margulis,1978
  • Kingdom: Protozoa () - (Goldfuss, 1818) R. Owen, 1858 - Protozoa
    • Subkingdom: Biciliata ()
      • Infrakingdom: Rhizaria () - Cavalier-Smith, 2002
        • Phylum: Protozoa () - (Eichwald, 1830) Margulis, 1974 - Protozoa
          • Class: Granuloreticulosea () - Lee, 1990
            • Order: Foraminiferida () - Delage & Herouard, 1896
              • Superfamily: Rotaliacea () - Ehrenberg, 1839
                • Family: Calcarinidae () - Schwager, 1876
                  • Genus: Calcarina ()
                    • Specific descriptor: calcar - Rezvoi, 1927
                      • Scientific name: - Calcarina calcar Rezvoi, 1927