Ellipsolithus lajollaensis Bukry & Percival, 1971
Ellipsolithus heilmannclausenii Steurbaut, 2011
Bukry, D. & Percival, S. F., (1971): New Tertiary calcareous nannofossils. - Tulane Studies in Geology and Paleontology. 8: 123-146.
Steurbaut, E., (2011): New calcareous nannofossil taxa from the Ypresian (Early Eocene) of the North Sea Basin and the Turan Platform in West Kazakhstan. - Bulletin de l'Institut Royal des Sciences Naturelles de Belgique Sciences de la Terre. 81: 247-277.
Ellipsolithus lajollaensis
Bukry & Percival, 1971
Middle Eocene
La Jolla, California, USA