Kisselevia variabilis

"variabilis" Bujak in Bujak et al., 1980, p.67, pl.17, figs.1–6; text-fig.16. Holotype: Bujak et al., 1980, pl.17, figs.1–3.  NOW Michouxdinium.  Originally Kisselevia, subsequently Charlesdowniea, thirdly (and now) Michouxdinium.  Age: middle Eocene (see Aubry, 1986).

Parent: Kisselevia