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Hystrichosphaeridium echinatum

Hystrichosphaeridium? echinatum Menéndez, 1965, p.12-13, pl.2, fig.9.

TYPE: Holotype: Menéndez, 1965, pl.2, fig.9.

HISTORY: Originally Hystrichosphaeridium, subsequently (and now) Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56), as a problematical species.

AGE: Late Cretaceous.


Infraspecific taxa:


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