Laciniadinium arcticum

arcticum (Manum and Cookson, 1964, p.18–19, pl.6, figs.1–4) Lentin and Williams, 1980, p.41.  Holotype: Manum and Cookson, 1964, pl.6, fig.1.  Originally Diconodinium, subsequently (and now) Laciniadinium.  Taxonomic junior synonym: Diconodinium acutum, according to Morgan (1977, p.126).  Age: Cenomanian.

Parent: Laciniadinium