Hystrichosphaera dentata
From dinoflaj3
"?dentata" Gocht, 1959, p.75–76, pl.4, fig.11; pl.7, fig.19. Emendation: Duxbury, 1977, p.49–50, as Spiniferites dentatus. Holotype: Gocht, 1959, pl.4, fig.11. NOW Spiniferites. Originally Hystrichosphaera?, subsequently Spiniferites?, thirdly (and now) Spiniferites. Questionable assignment: Gocht (1959, p.75). Age: late Hauterivian.
Parent: Hystrichosphaera