Hystrichogonyaulax pennata

"pennata" (Riley in Fisher and Riley, 1980, p.321–322, pl.1, figs.10–11) Lentin and Williams, 1981, p.133.  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: Hystrichogonyaulax