Family: Gradungulidae Forster, 1955
| Genus | Author | Action | Last updated |
|---|---|---|---|
| 1. Gradungula | Forster, 1955 | |  | Species | Catalog | 2023-05-09 |
| 2. Hickmania | Gertsch, 1958 | | | Species | Catalog | 2021-11-11 |
| 3. Kaiya | Gray, 1987 | | | Species | Catalog | 2023-05-16 |
| 4. Macrogradungula | Gray, 1987 | | | Species | Catalog | 2023-05-19 |
| 5. Pianoa | Forster, 1987 | | | Species | Catalog | 2023-06-05 |
| 6. Progradungula | Forster & Gray, 1979 | | | Species | Catalog | 2024-03-18 |
| 7. Spelungula | Forster, 1987 | | | Species | Catalog | 2023-06-28 |
| 8. Tarlina | Gray, 1987 | | | Species | Catalog | 2023-06-30 |