Phylum Tardigrada Doyère, 1840 - tardigrades Class Eutardigrada Richters, 1926 - naked tardigrades Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980 Family Hypsibiidae Pilato, 1969 Genus Diphascon Plate, 1888 Subgenus Diphascon (Plate) Pilato Diphascon pingue (Marcus, 1936)