Checklist for PTEROGNATHIIDAE Sterrer, 1972

Kingdom ANIMALIA Animals

Phylum GNATHOSTOMULIDA Gnathostomulids

Order FILOSPERMOIDEA Sterrer, 1972

Family HAPLOGNATHIIDAE Sterrer, 1972

Family PTEROGNATHIIDAE Sterrer, 1972

Genus Cosmognathia Sterrer, 1991

Genus Pterognathia Sterrer, 1966

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