Petalodinium spinulum

spinulum (Islam, 1983a, p.236, pl.2, fig.4) Williams et al., 2015, p.308.  Holotype: Islam, 1983a, pl.2, fig.4.  Originally Dracodinium politum subsp. spinulum, subsequently (and now) Petalodinium spinulum.  Age: early Eocene.

Parent: Petalodinium