Traits name details
original description
Whiteaves, J.F. (1885). Report on the Invertebrata of the Laramie and Cretaceous rocks of the vicinity of the Bow and Belly Rivers and adjacent localities in the North-West Territory. <em>Contributions to Canadian palaeontology.</em> 1(1): 1-89., available online at https://www.biodiversitylibrary.org/page/38502645 page(s): 18, pl. 2, figs 6-6b [details]
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