Traits name details
original description
Pierce, H.G.; Rasmussen, D.L. (1992). The nonmarine mollusks of the Late Oligocene-Early Miocene Cabbage Patch fauna of western Montana. I. Geologic setting and the family Pupillidae (Pulmonata: Stylommatophora). <em>Journal of Paleontology.</em> 66(1): 39-52. page(s): 42-44, figs 3.1, 4.1-4.4 [details] Available for editors
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