Petalodinium rugosum
From dinoflaj3
rugosum (Michoux, 1988, p.30–31, pl.3, figs.1–9; text-figs.8A–B) Williams et al., 2015, p.308. Holotype: Michoux, 1988, pl.3, figs.1–5; text-figs.8A–B. Originally Rhombodinium, subsequently (and now) Petalodinium. Age: early Eocene.
Parent: Petalodinium