Impagidinium gibrense Michoux, 1985, p.145, pl.1, figs.5-8,13-14; pl.2, fig.10; text-fig.5.
Holotype: Michoux, 1985, pl.1, figs.5-6; Jan du Chêne et al., 1986a, pl.57, figs.1-5.
Age: Early-Mid Eocene.