Phylum Tardigrada Doyère, 1840 - tardigrades
Class Eutardigrada Richters, 1926 - naked tardigrades
Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980
Family Macrobiotidae Thulin, 1928
1 Genus Macrobiotus Schultze, 1834
2 Genus Minibiotus Schuster, in Schuster et al., 1980
3 Genus Murrayon Bertolani & Pilato, 1989
4 Genus Richtersius Pilato & Binda, 1987