Phylum Tardigrada Doyère, 1840 - tardigrades Class Heterotardigrada Marcus, 1927 - armored tardigrades Order Echiniscoidea Richters, 1926 Family Echiniscoididae Kristensen & Hallas, 1980 1 Genus Echiniscoides Plate, 1889 2 Genus Anisonyches Pollock, 1975