Rhombodinium rhomboideum

"rhomboideum" (Alberti, 1961, p.10, pl.1, figs.1–5; pl.12, fig.9) Lentin and Williams, 1973, p.121.  Holotype: Alberti, 1961, pl.1, fig.3; pl.12, fig.9.  NOW Petalodinium.  Originally Wetzeliella subgenus Rhombodinium, subsequently Rhombodinium, thirdly Dracodinium, fourthly (and now) Petalodinium.  Age: late Eocene.

Parent: Rhombodinium

Infrataxon List:

"Rhombodinium rhomboideum forma ovale"