Traits name details
original description
Olsson, A. A. (1944). Contributions to the paleontology of northern Peru. Part VII. The Cretaceous of the Paita region. <em>Bulletins of American Paleontology.</em> 28(111): 159-304., available online at https://biodiversitylibrary.org/page/10679217 page(s): 205-206, pl. 4, figs 3, 4 [details]
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