Hystrichosphaeridium aracajuense
From dinoflaj2
"aracajuense" Regali et al., 1974, p.291, pl.24, fig.6. Holotype: Regali et al., 1974, pl.24, fig.6. NOW Spiniferites. Originally Hystrichosphaeridium, subsequently (and now) Spiniferites. Age: Paleocene-Early Eocene.
Parent: Hystrichosphaeridium
