Hystrichodinium alatum
From dinoflaj2
"alatum" Cookson and Eisenack, 1962b, p.487-488, pl.2, figs.1-4. Emendation: Sarjeant, 1966b, p.147, as Xiphophoridium alatum. Holotype: Cookson and Eisenack, 1962b, pl.2, fig.1; Fensome et al., 1993a, fig.1 - p.893; Fauconnier and Masure, 2004, pl.80, fig.6. NOW Xiphophoridium. Originally Hystrichodinium, subsequently (and now) Xiphophoridium, thirdly Pyramidium, fourthly Oodnadattia. Age: Albian-Cenomanian.
Parent: Hystrichodinium