Nemertodermatida

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Phylum: Nemertodermatida
Familiae: Ascopariidae - Nemertodermatidae

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Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License