Hypsibius is a genus of tardigrades in the class Eutardigrada.
Ramazzottius is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada.
Ramajendas is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada.
Isohypsibius is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada. The length of an isohypsibius tardigrade ranges from 0.1 millimeters to 1.5 millimeters. In addition to eating algae and plant cells, tardigrades also consume insect larvae and even other tardigrades. They live in a lot of places, like damp wooded areas with moss, lichens, leaf litter, and dirt. These animals can also be found in natural lakes and ponds.
Hebesuncus is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada.
Eohypsibiidae is a family of water bear or moss piglet, tardigrades in the class Eutardigrada. It contains the following species in three genera:
Acutuncus is a genus of tardigrades containing a single species, Acutuncus antarcticus. Tardigrades, which are eight-legged micro-animals, are commonly referred to as water bears or moss piglets and are found all over the world in varying extreme habitats. First discovered in 1904 and originally named Hypsibius antarcticus, Acutuncus antarcticus is the most abundant tardigrade species in Antarctica.
Milnesiidae is a family of tardigrades of the class Eutardigrada. It is the sole family in the order Apochela.
Echiniscus is a genus of tardigrades in the family Echiniscidae. The genus was named and described by Karl August Sigismund Schultze in 1840.
Oreella is a genus of tardigrades in the family Oreellidae. It is the only genus of that family. It was named and described by James Murray in 1920; the family Oreellidae was named and described by Giuseppe Ramazzotti in 1962. Ramazzotti gave the first modern description of the genus with his findings on O. minor, which was differentiated from another species by the name of O. mollis by its smaller size, spur presence on internal claws, and briefer stylets. Characteristics such as these can be considered as insufficient evidence of the delineation between species, however the differences in size of O. minor (≤170 μm) and O. mollis (≤251 μm), as well as the presence of the aforementioned claw spurs, would be considered notable features.
Pseudechiniscus is a genus of tardigrades in the family Echiniscidae. The genus was named and described by Gustav Thulin in 1911.
Mopsechiniscus is a genus of terrestrial tardigrades in the family Echiniscidae. It was named and described by Eveline Du Bois-Reymond Marcus in 1944.
Cornechiniscus is a genus of tardigrades in the family Echiniscidae. It was named and described by Walter Maucci and Giuseppe Ramazzotti in 1981.
Macrobiotidae is a family of tardigrade. As of 2023, it consists of the following genera:
Macrobiotus is a genus of tardigrade consisting of about 100 species.
Bertolanius is a genus of tardigrades belonging to the family Eohypsibiidae.
Paradiphascon is a monotypic genus of tardigrades belonging to the family Hypsibiidae. The only species is Paradiphascon manningi.
Calcarobiotus is a genus of tardigrades belonging to the family Macrobiotidae.
Mesobiotus is a genus of tardigrades belonging to the family Macrobiotidae.
