From Fensome et al., 2019:

Pterospermopsis, Wetzel, 1952, p.411.
Emendation: Sarjeant, 1984a, p.143–145. Acritarch genus. For synonymy see Fensome et al. (1990, p.429).
Type: Wetzel, 1952, pl.16, fig.34 as Pterospermopsis danica.