original description
Anderson, F. M. (1928). Notes on Lower Tertiary deposits of Colombia and their molluscan and foraminiferal fauna. <em>Proceedings of the California Academy of Sciences, fourth series.</em> 17(1): 1-28., available online at https://biodiversitylibrary.org/page/3129449
page(s): 23, pl. 1, figs 19-20 [details]
From editor or global species database
Type locality "near San Juan Rio Seco, on the east boarder of the upper valley of the Magdalena River, Colombia" [details]