| Pterognathiidae | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Gnathostomulida |
| Order: | Filospermoidea |
| Family: | Pterognathiidae Sterrer, 1972 |
Pterognathiidae is a family of worms belonging to the order Filospermoidea. [1]
Genera: [1]
- Cosmognathia Sterrer, 1991
- Pterognathia Sterrer, 1966
