Impagidinium arachnion
From dinoflaj2
arachnion de Verteuil and Norris, 1996a, p.140,142,144, pl.9, figs.9-20; pl.10, figs.1-5; pl.18, figs.4-6. Holotype: de Verteuil and Norris, 1996a, pl.9, figs.9-12. N.I.A. Age: Mid-Late Miocene.
Parent: Impagidinium