Geological Time:
the image is published under
CC BY-NO-SA in the World Foraminifera Database
View of a specimen of Polystomellina discorbinoides (Yabe & Hanzawa, 1923)
The identification is based upon:
, : Yabe, H.; Hanzawa, S. (1923). Foraminifera from the Natsukawa limestone, with a note on a new genus of Polystomellina. Japanese journal of geology and geography. 2(4): 95-100. Plate , Fig.
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