Pterodinium makropterum
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?makropterum (Cookson and Eisenack, 1982, p.47–48, pl.7, figs.1–3) Lentin and Williams, 1985, p.300. Holotype: Cookson and Eisenack, 1982, pl.7, fig.2. Originally Spiniferites, subsequently (and now) Pterodinium?. Questionable assignment: Lentin and Williams (1985, p.300). Age: Middle Cretaceous.
Parent: Pterodinium