MolluscaBase taxon details
original description
Branson, C.C. (1935). Fresh-Water invertebrates from the Morrison (Jurassic?) of Wyoming. <em>Journal of Paleontology.</em> 9(6):514-522., available online at https://www.jstor.org/stable/1298199
page(s): 520, pl. 57, figs 4-6 [details] Available for editors [request]
additional source
Yen, T.-C. (1952). Molluscan Fauna of the Morrison Formation. <em>United States Geological Survey Professional Paper.</em> 233-B: 21-51.
page(s): 40, pl. 6, figs 4a-c [details] Available for editors [request]
status source
Branson, C. C. (1964). Morrison fresh-water fauna in Wyoming. <em>Oklahoma Geology Notes.</em> 24(10): 238-243.
page(s): 241 [details] Available for editors [request]