Type species: Eschara polymorpha Reuss, 1864
Often considered a subjective synonym of Bracebridgia.
The species listed below appear to have not been revised:
Canu, 1907 | Paleogene Eocene Ypresian-Lutetian | France | WoRMS 1417460 | |
Canu & Caillot, 1932 | Paleogene Eocene | France | WoRMS 1417461 | |
Canu & Caillot, 1932 | Paleogene Eocene | France | WoRMS 1417462 |
Harmer notebook - entry for Poristoma