Palaeoperidinium marginatum

"marginatum" (Vozzhennikova, 1967, p.107, pl.46, figs.1,3–4,6) Lentin and Williams, 1976, p.110.  Holotype: Vozzhennikova, 1967, pl.46, fig.6; Lentin and Vozzhennikova, 1990, pl.7, fig.6; text-fig.33; lost according to Lentin and Vozzhennikova (1990, p.62).  Originally Pentagonum (generic name illegitimate), subsequently Palaeoperidinium.  Taxonomic senior synonym: Peridinium (now Palaeoperidinium) pyrophorum, according to Lentin and Vozzhennikova (1990, p.61).  Age: Paleocene.

Parent: Palaeoperidinium