Traits name details
original description
(of ) Guppy, R. J. L. (1866). On the Tertiary Mollusca of Jamaica. <em>The Quarterly Journal of the Geological Society of London.</em> 22: 281-295, pls. 16-18., available online at https://www.biodiversitylibrary.org/page/36164710 page(s): 292, pl. 18, fig. 3 [details]
basis of record
Spieker, E. M. (1922). The paleontology of the Zorritos Formation of the north Peruvian oil fields. <em>The Johns Hopkins University, Studies in Geology.</em> 3: 1-197, pls. 1-10., available online at https://www.biodiversitylibrary.org/page/19066928 page(s): 147, pl. 10, fig. 6 [details]
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