Type species: Fenestella geometrica Nekhoroshev, 1949
This genus includes the species:
| Rarifenestella geometrica | (Nekhoroshev, 1949) | Early Devonian | Russia? |
| Rarifenestella nodograciosa | (Chronic, 1949) | Late Carboniferous | Peru |
| Rarifenestella novochatskii | (Nekhoroshev, 1949?) | Early Devonian Emsian? | Russia? |
| Rarifenestella octoformis | Xia, 1997 | Devonian | China |
This information is based upon various sources, but no personal knowledge. I am unable to find out if the Hall and Simpson species have been revised.
I am indebted to the late Alan Horowitz for his compilation, and to Dr. J. Pachut.
I would be grateful for corrections to, or critical reviews of this information. This is not a 'final' version (an impossible ideal), but a working document.