Charlesdowniea tenuivirgula
From dinoflaj3
"tenuivirgula" (Williams and Downie, 1966b, p.188–189, pl.19, figs.1–2,4–5,7; text-figs.49–50) Lentin and Vozzhennikova, 1989, p.227. Holotype: Williams and Downie, 1966b, pl.19, figs.2,4; text-fig.49. NOW Sophismatia. Originally Wetzeliella, subsequently Kisselevia, thirdly Charlesdowniea, fourthly (and now) Sophismatia. Age: early Eocene.
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