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Hystrichosphaeridium hillii

Hystrichosphaeridium? hillii (Merrill, 1895, p.17; text-fig.21) Sarjeant, 1964b, p.175.

TYPE: Holotype: Merrill, 1895, text-fig.21.

HISTORY: Originally Geodia (Appendix A), subsequently Hystrichosphaeridium, thirdly (and now) Hystrichosphaeridium?. Questionable assignment: Davey and Williams (1966b, p.70).

AGE: Early Cretaceous.


Infraspecific taxa:


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