| Kingdom | Phylum | Class | Order | Family | Genus |
|---|---|---|---|---|---|
| Animalia | Mollusca | Gastropoda | Cephalaspidea | Cylichnidae | Toledonia Dall, 1902 |
Toledonia major (Hedley, 1911). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-17.