Pleurostomella gerontica

Galloway, J. J.; Heminway, C. E. (1941). The Tertiary foraminifera of Porto Rico. <em>New York Academy of Science, Scientific survey of Porto Rico and the Virgin Islands.</em> 3(4): 275-491.

Hayward, B.W., Kawagata, S., Sabaa, A.T., Grenfell, H.R., van Kerckhoven, L., Johnson, K., and Thomas, E., 2012. The last global extinction (Mid-Pleistocene) of deep-sea benthic foraminifera (Chrysalogoniidae, Ellipsoidinidae, Glandulonodosariidae, Plectofrondiculariidae, Pleursostomellidae, Stilostomellidae), their Late Cretaceous-Cenozoic history and taxonomy: Cushman Foundation for Foraminiferal Research Special Publication, v. 43, p. 408.