original description
MacNeil, F.S. (1935). Fresh-water Mollusks from the Catahoula Sandstone (Miocene) of Texas. <em>Journal of Paleontology.</em> 9(1): 10-17.
page(s): 16-17, pl. 5, fig. 16 [details] Available for editors
[request]
basis of record
Modell, H. (1957). Die fossilen Najaden Nordamerikas. Ein Klassifizierungsversuch. <em>Archiv für Molluskenkunde.</em> 86(4/6): 183-200.
page(s): 192 [details] Available for editors
[request]
additional source
Watters, G.T. (2001). The Evolution of the Unionacea in North America, and Its Implications for the Worldwide Fauna. In: Bauer, G.; Wächtler, K. (eds) Ecology and Evolution of the Freshwater Mussels Unionoida. Springer, Berlin, Heidelberg, pp. 281-307
page(s): 297, 298, fig. 15.30 [details]
From editor or global species database
Type locality "5 miles north of the town of La Grange [Fayette Co., Texas], about one-half mile northwest of the south corner of the James Green League", USA; Catahoula Fm., Miocene [details]