From Williams et al., 2017:

[Pterospermella, Eisenack, 1972, p.597

A prasinophyte genus. For discussion of status of this genus see Fensome et al., 1990.

Type species: originally as Pterospermopsis aureolata, Cookson and Eisenack, 1958 (pl.9, fig.11)] ; Pterospermella aureolata, Eisenack, 1972