original description
Perrilliat, M.d.C.; Vega, F.J.; Espinosa, B.; Naranjo-Garcia, E. (2008). Late Cretaceous and Paleogene freshwater gastropods from northeastern Mexico <em>Journal of Paleontology</em>. 82(2): 255-266, available online at https://doi.org/10.1666/06-062.1
page(s): 259, figs 4.1-4.3 [details]
From editor or global species database
Type locality Locality IGM 3494, Puerto Colorado, Coahuila, Mexico; Las Encinas Formation, latest Maastrichtian to middle Paleocene [details]