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Hystrichosphaeridium aracajuense

"Hystrichosphaeridium aracajuense" Regali et al., 1974, p.291, pl.24, fig.6.

TYPE: Holotype: Regali et al., 1974, pl.24, fig.6.

HISTORY: NOW: Spiniferites. Originally Hystrichosphaeridium, subsequently (and now) Spiniferites.

AGE: Paleocene-Early Eocene.


Infraspecific taxa:


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