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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Phylum: Gnathostomulida
Ordo: Filospermoidea

Familia: Pterognathiidae
Genera: Cosmognathia - Pterognathia

Pterognathiidae is a family of worms belonging to the order Filospermoidea.[1]

Genera:[1]

Cosmognathia Sterrer, 1991
Pterognathia Sterrer, 1966

References

"Pterognathiidae". www.gbif.org. Retrieved 14 June 2021.

Biology Encyclopedia

Retrieved from "http://en.wikipedia.org/"
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