Isabelidinium armatum
From dinoflaj3
armatum (Cookson and Eisenack, 1970a, p.142–143, pl.13, fig.9) Lindgren, 1984, p.165. Holotype: Cookson and Eisenack, 1970a, pl.13, fig.9. Originally Deflandrea, subsequently Chatangiella, thirdly Chatangiella?, fourthly (and now) Isabelidinium. Age: Senonian.
Parent: Isabelidinium