| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| kingdom | Animalia Linnaeus, 1758 - animals |
| subregnum | Eumetazoa Butschli, 1910 |
| divisio | Bilateria Hatschek, 1888 |
| subdivisio | Protostomia Grobben, 1908 - protostomes |
| phylum | Gastrotricha Metschnikoff, 1865 - gastrotrichs |
| order | Chaetonotida Remane, 1925 |
| suborder | Paucitubulatina d'Hondt, 1971 |
| family | Chaetonotidae Gosse, 1864 |
| subfamily | Chaetonotinae Kisielewski, 1991 |
| genus | Chaetonotus Ehrenberg, 1830 |
| subgenus | Hystricochaetonotus Schwank, 1990 |
| species | Chaetonotus aemilianus Balsamo, 1978 |