From Fensome et al., 2019:
Dapsilidinium? paulinae (Valensi, 1953, p.48, pl.12, fig.6) Lentin and Williams, 1981, p.70. Holotype: Valensi, 1953, pl.12, fig.6.
Originally Micrhystridium (Appendix A), subsequently Hystrichosphaeridium, thirdly Polysphaeridium?, fourthly
(and now) Dapsilidinium?. Questionable assignment: Lentin and Williams (1981, p.70). Age: Middle Jurassic.

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Original description: [Valensi, 1953] (translated from French):

Micrhystridium paulinae nov. sp.
Pl. XII, fig. 6.

HOLOTYPE: Bathonian, Mouchedune flint (B S 59).
The very damaged shell must have originally been spherical; small in size, it bears about 25 radiating processes, the length of which is between a quarter and a third of its diameter. Each of these processes has the shape of a hollow cylindrical tube, slightly narrowed in its middle and ending in a flared funnel with a circular or polygonal edge, the angles of which give rise to thin straight or curved spines; sometimes a thin longitudinal rib supports the process and ends at this angle. Each process has the appearance of a distal tube of Hystrichosphaeridium deflandrei.
The shell diameter is 12 μm, the length of the processes varies from 3 to 4 μ, and the total span is 20 μ.
A single individual of this species has been found in the Bathonian of Mouchedune.

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Transfer to Dapsilidinium by Lentin and Williams, 1981:

Dapsilidinium
?paulinae (Valensi, 1953) comb. nov.
1953 Hystrichosphaeridium paulinae Valensi, p.48, p1.12, fig.6.
Middle Jurassic, also formerly ?Polysphaeridium.