original description
Pilsbry, H. A. & Brown, A. P. (1917). Oligocene fossils from the neighborhood of Cartagena, Colombia, with notes on some Haitian species. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 69: 32–41, pls. 5–6., available online at https://www.biodiversitylibrary.org/page/24683001
page(s): 39, pl. 6, fig. 5 [details]
additional source
Maury, C. J. (1925). A further contribution to the paleontology of Trinidad (Miocene Horizons). <em>Bulletins of American Paleontology.</em> 10(42): 153-402, pls. 1-43., available online at https://www.biodiversitylibrary.org/page/32509152
page(s): 184, pl. 18, fig. 11 [details]
From editor or global species database
Type locality Cartegena [details]