Phylum Tardigrada Doyère, 1840 - tardigrades
Class Eutardigrada Richters, 1926 - naked tardigrades
Order Parachela Schuster, Nelson, Grigarick & Christenberry, 1980
Family Hypsibiidae Pilato, 1969
01 Genus Halobiotus R.M. Kristensen, 1982
02 Genus Acutuncus Pilato & Binda, 1997
03 Genus Astatumen Pilato, 1997
04 Genus Diphascon Plate, 1888
05 Genus Doryphoribius Pilato, 1969
06 Genus Eremobiotus Biserov, 1992
07 Genus Fujiscon Ito, 1991
08 Genus Hebesuncus Pilato, 1987
09 Genus Hypsibius Ehrenberg, 1848
10 Genus Isohypsibius Thulin, 1928
11 Genus Itaquascon de Barros, 1939
12 Genus Mesocrista Pilato, 1987
13 Genus Mixibius Pilato, 1992
14 Genus Paradiphascon Dastych, 1992
15 Genus Parascon Pilato & Binda, 1987
16 Genus Platicrista Pilato, 1987
17 Genus Pseudobiotus Nelson, in Schuster et al., 1980
18 Genus Ramajendas Pilato & Binda, 1986
19 Genus Ramazzottius Binda & Pilato, 1986
20 Genus Thulinia Bertolani, 1981, nom. illeg.
see Genus Thulinius R. Bertolani, 2003