Maldonado, M., López-Acosta, M., Sitjà, C., Aguilar, R., García, S. and Vacelet, J. 2013. A giant foraminifer that converges to the feeding strategy of carnivorous sponges: Spiculosiphon oceana sp. nov. (Foraminifera, Astrorhizida). Zootaxa. 3669, 4 (Jun. 2013), 571–584. DOI:https://doi.org/10.11646/zootaxa.3669.4.9.