Palaeoperidinium mosaicum

"mosaicum" Downie, 1957, p.424, pl.20, fig.7; text-fig.2f.  Emendation: Sarjeant, 1976c, p.6–7, as Leptodinium mosaicum.  Holotype: Downie, 1957, pl.20, fig.7; text-fig.2f; Sarjeant, 1976c, pl.2, figs.3,5; text-figs.2a–b; Jan du Chêne et al., 1986a, pl.70, figs.5–6.  Name not validly published: generic name not validly published until 1967.  NOW Leptodinium?.  Originally Palaeoperidinium (name not validly published), subsequently Gonyaulacysta, thirdly Leptodinium, fourthly (and now) Leptodinium?.  N.I.A.  Age: late Kimmeridgian.

Parent: Palaeoperidinium