Type species: Cavaria dumosa Ulrich, 1901
This genus includes the species:
| (Ulrich, 1901) | Paleogene Paleocene Selandian | USA Maryland | WoRMS 1412733 | |
| Canu & Bassler, 1920 | Paleogene Oligocene Rupelian | USA Alabama | WoRMS 1406240 | |
| Canu & Bassler, 1920 | Paleogene Eocene Priabonian | USA South Carolina | WoRMS 1406241 | |
| Canu & Bassler, 1920 | Paleogene Eocene Priabonian | USA South Carolina | WoRMS 1406242 |