Isabelia glabra
From dinoflaj3
"glabra" (Cookson and Eisenack, 1969, p.3, fig.1A) Lentin and Williams, 1976, p.58. Holotype: Cookson and Eisenack, 1969, fig.1A. Combination illegitimate: the generic name Isabelia is illegitimate. NOW Isabelidinium. Originally Deflandrea, subsequently Isabelia (combination illegitimate), thirdly (and now) Isabelidinium. Age: Albian–Cenomanian.
Parent: Isabelia_Lentin and Williams 1976