basis of recordTozer, E.T. (1956). Uppermost Cretaceous and Paleocene nonmarine molluscan faunas of western Alberta. <em>Geological Survey of Canada, Memoir.</em> 280: 1-125., available online athttps://doi.org/10.4095/101507 page(s): 72, pl. 6, figs 23-26 [details] Available for editors