Type species: Calpensia reversa Harmer, 1926
| Synonyms | Author | Type species |
|---|---|---|
| Thalamotreptos | Soule, Soule & Chaney, 1991 | Thalamoporella verrilli Soule & Soule, 1970 |
This genus includes the species:
| Dibunostoma aegyptiacum | (Ziko, 1985) | Eocene | Egypt |
| Dibunostoma expansum | (Levinsen, 1909) | Recent | Indo-Pacific |
| Dibunostoma gracile | (Maplestone, 1900) | Tertiary | SE Australia |
| Dibunostoma purii | Cheetham, 1963 | Eocene | Florida |
| Dibunostoma reversum | (Harmer, 1926) | Recent | Indo-West Pacific |
| Dibunostoma verrilli | (Soule & Soule, 1970) | Recent | Hawai'i |