Hystrichosphaeropsis rectangularis
From dinoflaj2
rectangularis Bujak in Bujak et al., 1980, p.66, pl.16, figs.10-12; text-fig.15. Holotype: Bujak et al., 1980, pl.16, figs.10-12; Jan du Chêne et al., 1986a, pl.48, figs.8-10. Age: Mid Eocene (see Aubry, 1986).
Parent: Hystrichosphaeropsis
