Umbellosphaera Paasche in Markali & Paasche, 1955
Markali, J., Paasche, E., 1955. On two species of Umbellosphaera, a new marine coccolithophorid genus. Nytt Magasin for Botanikk 4, 95-100.
Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I., Ostergaard, J. B., 2003. A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research, Special Issue 1, 1-132.