Traits name details
original description
McLearn, F. H. (1940). Preliminary study of some Triassic pelecypods and ammonoids from the Peace River foothills. <em>The Canadian Field-Naturalist.</em> 54: 111-116., available online at https://www.biodiversitylibrary.org/page/28025203 page(s): 112, pl. 3, fig. 6 [details]
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