Traits taxon details
original description
Poulton, T. P. (1979). Jurassic trigoniid bivalves from Canada and western United States of America. <em>Geological Survey of Canada, Bulletin.</em> 282: 1-78. page(s): 37, pl. 8, figs 13-15, pl. 9, figs 1-9 [details] Available for editors 
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