Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Cladus: Kinorhyncha
Ordo: Cyclorhagida
Subordo: Cyclorhagae
Familiae: Centroderidae - Dracoderidae - Echinoderidae
References
Primary references
Zelinka, C. 1896. Demonstration der Tafeln der Echinoderes-Monographie. Verhandlungen der Deutschen Zoologischen Gesellschaft. 6: 197-199. BHL Reference page.
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