MolluscaBase taxon details
original description
(of Loxonema difficile Sardeson, 1902 †) Sardeson F.W. (1902). The Carboniferous formations of Humboldt, Iowa. <em>American Geologist.</em> 30: 300-312. page(s): 304, pl. 17, figs. 3, 4 [details]
basis of record
Rollins H.B. (1975). Gastropods from the Lower Mississippian Wassonville Limestone in southeastern Iowa. <em>American Museum Novitates.</em> 2579: 1-35. page(s): 31, fig. 11E [details] Available for editors [request]
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