original description
Stenzel, H. B., Krause, E. K. & Twining, J. T. (1957). Pelecypoda from the type locality of the Stone City Beds (Middle Eocene). <em>Bureau of Economic Geology, The Univesity of Texas, Austin.</em> 5704: 1–237, pls. 1-22 [15 February]., available online at https://repositories.lib.utexas.edu/handle/2152/77690
page(s): 158-159, pl. 18, figs. 5-6 [details]
From editor or global species database
Type locality "Highway borrow pit at the edge of the river flood plain about 300 feet east of U.S. Highway 59 (Lufkin-Nacogdoches road), 0.83 mile south of the Angelina River or 2.5 miles north of the school at Redland, north-central Angelina County, Texas" [details]