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Hystrichosphaeridium sergipense
Hystrichosphaeridium? sergipense (Regali et al., 1974) Lentin and Williams, 1981
Originally Hystrichosphaera, subsequently (and now) Hystrichosphaeridium?.
At the time of the transfer, Lentin and Williams, 1981, questionably included this species in Hystrichosphaeridium.
Holotype: Regali et al., 1974, pl.24, fig.1
Age: Early Eocene
Originally Hystrichosphaera, subsequently (and now) Hystrichosphaeridium?.
At the time of the transfer, Lentin and Williams, 1981, questionably included this species in Hystrichosphaeridium.
Holotype: Regali et al., 1974, pl.24, fig.1
Age: Early Eocene