Phylum Tardigrada Doyère, 1840 - tardigrades Class Eutardigrada Richters, 1926 - naked tardigrades Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980 Family Hypsibiidae Pilato, 1969 Genus Itaquascon de Barros, 1939 1 Itaquascon mongolicus L. Kaczmarek et al., 2002