Maldonado, M., López-Acosta, M., Sitjà, C., Aguilar, R., García, S. & Vacelet, J. (2013) A giant foraminifer that converges to the feeding strategy of carnivorous sponges: Spiculosiphon oceana sp. nov. (Foraminifera, Astrorhizida). Zootaxa, 3669 (4), 571–584.