Pterospermopsis? vancampoae Rossignol, 1962, p.134

Now Tuberculodinium. Originally Pterospermopsis?, subsequently (and now) Tuberculodinium, thirdly Pyrophacus.
Taxonomic junior synonym: Membranilarnacia donaensis, according to Jain and Garg (1990, p.108).
Motile equivalent: Pyrophacus steinii (Schiller, 1935) Wall and Dale, 1971, according to Matsuoka et al. (1989, p.94).

Holotype: Rossignol, 1962, pl.2, fig.1
Age: Pleistocene