Achomosphaera quadrata
From dinoflaj3
quadrata Antolinez-Delgado and Oboh-Ikuenobe, 2007, p.54–55, pl.1, fig.6. Holotype: Antolinez-Delgado and Oboh-Ikuenobe, 2007, pl.1, fig.6. Age: Paleocene–?earliest Eocene.
Parent: Achomosphaera