Psaligonyaulax simplicia

"simplicia" (Cookson and Eisenack, 1961b, p.42, pl.2, figs.3–4; text-figs.1e–f) Sarjeant, 1969, p.15.  Holotype: Cookson and Eisenack, 1961b, pl.2, figs.3–4; text-figs.1e–f; Jan du Chêne et al., 1986a, pl.54, figs.1–5.  NOW Impagidinium?.  Originally Rottnestia, subsequently Psaligonyaulax, thirdly (and now) Impagidinium?.  This combination was not validly published in Sarjeant (1966b, p.138), since that author did not fully reference the basionym.  Age: Eocene.

Parent: Psaligonyaulax