Traits name details
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): 261, figs 4.16-4.19 [details]
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