MolluscaBase taxon details
original description
Girty, G. H. (1912). On some invertebrate fossils from the Lykins Formation of eastern Colorado. <em>Annals of the New York Academy of Sciences.</em> 22(1): 1-8., available online at https://doi.org/10.1111/j.1749-6632.1912.tb55157.x page(s): 4-5, pl. 1, figs 4, 4a, 5, 5a [details]
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