From Williams et al., 2017:

[Pulvinosphaeridium, Eisenack, 1954a, p. 210; Emendation: Sarjeant and Stancliffe, 1994, p. 52
Acritarch genus.
For synonymy see Fensome et al., 1990.

Type species: Pulvinosphaeridium pulvinellum, Eisenack, 1954a (pl.1, fig.10)]