Gonyaulacysta diutina
From dinoflaj3
"diutina" Duxbury, 1977, p.34–35, pl.1, figs.3–4; text-fig.9. Holotype: Duxbury, 1977, pl.1, fig.3; text-fig.9; Jan du Chêne et al., 1986a, pl.41, figs.3–4. NOW Wrevittia?. Originally Gonyaulacysta, subsequently Millioudodinium?, thirdly (and now) Wrevittia?. Taxonomic senior synonym: Gonyaulax (as Gonyaulacysta, now Wrevittia) helicoidea, according to Stover and Helby (1987d, p.287) — however, Jan du Chêne et al. (1986a, p.130) and Lentin and Williams (1989, p.152) retained Gonyaulacysta (now Wrevittia?) diutina. Age: Berriasian–Hauterivian.
Parent: Gonyaulacysta
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