Cannosphaeropsis hyperacantha
From dinoflaj2
?hyperacantha Cookson and Eisenack, 1960a, p.9, pl.2, figs.14-15. Holotype: Cookson and Eisenack, 1960a, pl.2, fig.14. Originally Cannosphaeropsis, subsequently (and now) Cannosphaeropsis?. Questionable assignment: Stover and Evitt (1978, p.144) as a problematic species. Age: Campanian.
Parent: Cannosphaeropsis