MolluscaBase name details
original description
Yochelson, E. L. (1956). Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pesudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea. <em>Bulletin of the American Museum of Natural History.</em> 110(3): 173-276. [details] Available for editors [request]