| Kingdom | Phylum | Order |
|---|---|---|
| Animalia | Gnathostomulida | Bursovaginoidea |
| Rank | Scientific name | Taxonomic status |
|---|---|---|
| genus | Chirognathia Sterrer & Sørensen, 2006 | accepted |
| genus | Corculognathia Ehlers & Ehlers, 1973-23 | accepted |
| genus | Gnathostomula Ax, 1956 | accepted |
| genus | Ratugnathia Sterrer, 1991-14 | accepted |
| genus | Semaeognathia Riedl, 1970-01 | accepted |
Gnathostomulidae. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-17.