Demetresçu, 1989
From dinoflaj3
Demetresçu, E., 1989: Achomosphaera argesensis: a new dinoflagellate species from the early Pliocene of the southern Carpathians foredeep, Romania. Review of Palaeobotany and Palynology, v.59, p.51-55, pl.1-2.