Hystrichosphaeridium alagoense
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"alagoense" Regali et al., 1974, p.290, pl.24, fig.2. Holotype: Regali et al., 1974, pl.24, fig.2. NOW Surculosphaeridium?. Originally Hystrichosphaeridium, subsequently (and now) Surculosphaeridium?. Age: Mid Eocene-Miocene.
Parent: Hystrichosphaeridium