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• Domain: Eukaryota () - Whittaker & Margulis,1978
  • Kingdom: Animalia () - Linnaeus, 1758 - animals
    • Subkingdom: Radiata () - (Linnaeus, 1758) Cavalier-Smith, 1983
      • Infrakingdom: Spongiaria () - De Blainville, 1816
        • Phylum: Porifera () - Grant, in Todd, 1836 - Sponges
          • Subphylum: Cellularia () - Reiswig & Mackie, 1983
            • Class: Demospongiae () - Sollas, 1875 - Demosponges
              • Subclass: Tetractinomorpha () - Lévi
                • Order: Spirophorida () - Bergquist & Hogg
                  • Family: Tetillidae () - Sollas, 1886
                    • Genus: Tetilla ()
                      • Specific name: hamatum - Koltun, 1966
                        • Scientific name: - Tetilla hamatum Koltun, 1966