Type species: Monotrypella (?) cromfordensis Nekhoroshev, 1932
This genus includes the species:
(Fritz, 1944) | Late Devonian Famennian | USA New Mexico | WoRMS 1413368 | |
(Nekhoroshev, 1932) | Late Devonian Famennian | Germany | WoRMS 1413369 | |
(Troizkaya, 1963) | Devonian Frasnian-Famennian | Russia | WoRMS 1413370 | |
(Nekhoroshev, 1977) | Devonian Famennian | Russia | WoRMS 1413371 |