Palaeoperidinium crassinervum

"crassinervum" Deflandre, 1939b, p.144, pl.6, fig.5.  Emendation: Nøhr-Hansen, 1986, p.33, as Cribroperidinium crassinervum.  Holotype: Deflandre, 1939b, pl.6, fig.5; Jan du Chêne et al., 1986a, pl.70, figs.1–4.  Name not validly published: generic name not validly published until 1967.  NOW Cribroperidinium.  Originally Palaeoperidinium (name not validly published), subsequently Gonyaulacysta, thirdly Leptodinium, fourthly Leptodinium?, fifthly (and now) Cribroperidinium.  Age: Kimmeridgian.

Parent: Palaeoperidinium