Australisphaera fragilis
From dinoflaj2
"fragilis" Harding, 1986a, p.100-101, pl.16, figs.6-9; pl.17, fig.9; text-fig.2. Holotype: Harding, 1986a, pl.16, fig.6. NOW Vesperopsis. Originally Australisphaera, subsequently (and now) Vesperopsis. Age: Late Hauterivian.
Parent: Australisphaera