Hystrichosphaeridium polyplasium
From dinoflaj3
"?polyplasium" Maier, 1959, p.322–323, pl.33, figs.7–8. Emendation: Sarjeant, 1983, p.96–97, as Spiniferites polyplasius. Holotype: Maier, 1959, pl.33, fig.7; Sarjeant, 1983, pl.1, fig.3; pl.2, fig.2. NOW Spiniferites. Originally Hystrichosphaeridium, subsequently Hystrichosphaeridium?, thirdly (and now) Spiniferites. Questionable assignment: Davey and Williams (1966b, p.70). Age: Miocene.
Parent: Hystrichosphaeridium