Phthanoperidinium geminatum

geminatum Bujak in Bujak et al., 1980, p.72,74, pl.19, figs.8–12; text-figs.20D,22A.  Holotype: Bujak et al., 1980, pl.19, figs.9–11.  Age: middle Eocene (see Aubry, 1986).

Parent: Phthanoperidinium