Hystrichosphaeridium grallaeforme
From dinoflaj2
"grallaeforme" Brosius, 1963, p.42, pl.5, fig.3; text-fig.2. Holotype: Brosius, 1963, pl.5, fig.3. NOW Achomosphaera. Originally Hystrichosphaeridium, subsequently (and now) Achomosphaera, thirdly Spiniferites (combination not validly published). Taxonomic junior synonym: Spiniferites solidago, according to Strauss et al. (2001, p.412). Age: Oligocene.
Parent: Hystrichosphaeridium
