original description
Yen, T.-C. (1951). Some Triassic Fresh-Water Gastropods from Northern Arizona. <em>American Journal of Science.</em> 249: 671-675.
page(s): 674-675, pl. 1, figs 13-19 [details] Available for editors [request]
From editor or global species database
Type locality About 28.7 miles south from Navajo Bridge on U. S. highway 89, north of Tuba City, Arizona, United States; Chinle Formation, late Triassic [details]