Leptodinium crassinervum
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"?crassinervum" (Deflandre, 1939b, p.144, pl.6, fig.5 ex Sarjeant, 1967b, p.248–249) Sarjeant, 1969, p.12. 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. NOW Cribroperidinium. Originally Palaeoperidinium (name not validly published), subsequently Gonyaulacysta, thirdly Leptodinium, fourthly Leptodinium?, fifthly (and now) Cribroperidinium. Questionable assignment: Stover and Evitt (1978, p.170) as a problematic species. Age: Kimmeridgian.
Parent: Leptodinium