original description
Vega, F.J.; Perrilliat, M.d.C. (1992). Freshwater Gastropods from Early Eocene Difunta Group, Northeastern Mexico <em>Journal of Paleontology</em>. 66(4): 603-609
page(s): 604, figs 4.2-4.4 [details]
From editor or global species database
Type locality Locality IGM 2587, NW margin of Escondida syncline, ca. 15 km E of Espinazo, Nuevo León, Mexico; Adjuntas Formation, Selandian to Thanetian, Paleocene [details]