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Oligosphaeridium perforatum subsp. colum

Oligosphaeridium perforatum subsp. colum Duxbury, 1983, p.53, pl.8, fig.9; text-fig.24.

TYPE: Holotype: Duxbury, 1983, pl.8, fig.9.

AGE: Late Aptian-Early Albian.


Infraspecific taxa:


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DINOFLAJ (c) 1998