MolluscaBase name details
original description
Olsson, A. A. (1934). Contributions to the paleontology of northern Peru: The Cretaceous of the Amotape region. <em>Bulletins of American Paleontology.</em> 20(69): 1-104, pls. 1-11., available online at https://www.biodiversitylibrary.org/page/30361066
page(s): 71-72, pl. 9, fig. 7 [details]