Antolinez-Delgado and Oboh-Ikuenobe, 2007
From dinoflaj3
Antolinez-Delgado, H. and Oboh-Ikuenobe, F.E., 2007: New species of dinoflagellate cysts for the Paleocene of the Anambra Basin, southeast Nigeria. Palynology, v.31, p.53-62, pl.1-2.