Ynezidinium brevisulcatum

brevisulcatum (Michoux, 1985, p.144–145, pl.1, figs.9–11; text-fig.4) Lucas-Clark and Helenes, 2000, p.118.  Holotype: Michoux, 1985, pl.1, fig.10; Jan du Chêne et al., 1986a, pl.56, figs.4–6.  Originally Impagidinium, subsequently (and now) Ynezidinium.  Age: middle Eocene.

Parent: Ynezidinium