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Oligosphaeridium tubulatum

Oligosphaeridium? tubulatum (Menéndez, 1965, p.13, pl.2, fig.7; pl.3, fig.17) Sarjeant and Stancliffe, 1994, p.56.

TYPE: Holotype: Menéndez, 1965, pl.2, fig.7.

HISTORY: Originally Micrhystridium (Appendix A), subsequently (and now) Oligosphaeridium?. Questionable assignment: Sarjeant and Stancliffe (1994, p.56).

AGE: Oligocene.


Infraspecific taxa:


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