Kingdom Animalia Linnaeus, 1758 - animals Phylum Tardigrada Doyère, 1840 - tardigrades Class Eutardigrada Richters, 1926 - naked tardigrades Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980 Superfamily Macrobiotoidea Thulin, 1928 Family Murrayidae Guidetti, Rebecchi & Bertolani, 2000