Impletosphaeridium luxurium
From dinoflaj3
luxurium Eaton, 1976, p.309, pl.21, figs.3–4; text-fig.25F. Holotype: Eaton, 1976, pl.21, fig.3; Bujak et al., 1980, pl.5, fig.6. Age: middle Eocene (see Aubry, 1986).
Parent: Impletosphaeridium