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Pyxidinopsis densepunctata

From Fensome et al., 2019:
Pyxidinopsis densepunctata de Coninck, 1985, p.68, pl.2, figs.20–21. Holotype: de Coninck, 1985, pl.2, fig.20. Age: Middle Eocene.

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Heilmann-Clausen in Heilmann-Clausen and Costa, 1989,p. 470, pl.16,fig.3: Pyxidinopsis aff. densepunctata
The specimens appear blackish, due to the refraction in a layer of small, closely spaced vesicles in the cyst-wall. The surface of the periphragm is smooth, or ornamented with extremely small coni or granulae.
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