Pentagonum marginatum

"marginatum" Vozzhennikova, 1967, p.107, pl.46, figs.1,3–4,6.  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).  Following I.C.N. Article 55.1, the species name Pentagonum marginatum is validly published even though the generic name Pentagonum is illegitimate.  Age: Paleocene.

Parent: Pentagonum_Vozzhennikova 1963