Erwin, D. H. (1988). Permian Gastropoda of the southwestern United States: Subulitacea. <em>Journal of Paleontology.</em> 62(1): 56-69., available online athttps://doi.org/10.1017/s002233600001800x page(s): 58, fig. 3.3 [details] Available for editors [request]
original descriptionErwin, D. H. (1988). Permian Gastropoda of the southwestern United States: Subulitacea. <em>Journal of Paleontology.</em> 62(1): 56-69., available online athttps://doi.org/10.1017/s002233600001800x page(s): 58, fig. 3.3 [details] Available for editors [request]