Phylum Tardigrada Doyère, 1840 - tardigrades
Class Eutardigrada Richters, 1926 - naked tardigrades
Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980
Family Macrobiotidae Thulin, 1928
Genus Macrobiotus Schultze, 1834
1 Macrobiotus areolatus J. Murray, 1907
2 Macrobiotus harmsworthi Murray, 1907
3 Macrobiotus hufelandi C.A.S. Schultze, 1834
4 Macrobiotus islandicus Richters, 1903
5 Macrobiotus mongolicus W. Maucci, 1988
6 Macrobiotus montanus Murray, 1910
7 Macrobiotus richtersi J. Murray, 1911
8 Macrobiotus spectabilis Thulin, 1928
9 Macrobiotus willardi Pilato