Millioudodinium pennatum

"pennatum" (Riley in Fisher and Riley, 1980, p.321–322, pl.1, figs.10–11) Fisher and Riley, 1982, p.53.  Holotype: Fisher and Riley, 1980, pl.1, figs.10–11; Jan du Chêne et al., 1986a, pl.98, fig.5.  NOW Rhynchodiniopsis.  Originally Gonyaulacysta, subsequently Hystrichogonyaulax, thirdly Millioudodinium, fourthly (and now) Rhynchodiniopsis.  Age: late Kimmeridgian.

Parent: Millioudodinium