 Natura - nature | | Mundus Plinius - physical world | | Naturalia | | Biota | | Domain Eukaryota - eukaryotes | | Kingdom Animalia C. Linnaeus, 1758 - animals | | Subkingdom Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians | | Branch Protostomia Grobben, 1908 - protostomes | | Infrakingdom Ecdysozoa Aguinaldo et al., 1997 ex Cavalier-Smith, 1998 - ecdysozoans | | Superphylum Panarthropoda | | Phylum Arthropoda Latreille, 1829 - arthropods | | Subphylum Mandibulata Snodgrass, 1938 | | Infraphylum Atelocerata | | Superclass Panhexapoda | | Epiclass Hexapoda | | Class Entognatha | | Ellipura | | Order Collembola Lubbock, 1870 - springtails | | Suborder Arthropleona | | Superfamily Poduroidea | | Family Hypogastruridae Börner, 1906 | | Genus Achorutes Templeton, 1835 |  Achorutes nivicola - snow flea |
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