Chrysalogonium longicostatum

Cushman, J. A.; Jarvis, P. W. (1934). Some interesting new uniserial foraminifera from Trinidad. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 10(3): 71-75.

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.