Phthanoperidinium stoveri

"stoveri" (Liengjarern et al., 1980, p.490–491, pl.54, fig.7) Islam, 1982, p.313.  Holotype: Liengjarern et al., 1980, pl.54, fig.7; Fensome et al., 1995, fig.1 — p.1807.  NOW Vectidinium.  Originally (and now) Vectidinium, subsequently Phthanoperidinium.  Age: late Eocene–early Oligocene.

Parent: Phthanoperidinium