Impletosphaeridium nanus
From dinoflaj3
nanus (Rozen, 1965, p.311, pl.2, figs.7–8; text-fig.21) Islam, 1993, p.86. Holotype: Rozen, 1965, pl.2, figs.7–8. Originally Cordosphaeridium microtriainum var. nanus, subsequently Cordosphaeridium microtriainum subsp. nanus, thirdly Cleistosphaeridium? nanus, fourthly (and now) Impletosphaeridium nanus. N.I.A. Age: late Eocene.
Parent: Impletosphaeridium