Hystrichosphaeridium ashdodense Rossignol, 1962

Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Cleistosphaeridium.
Taxonomic senior synonym: Hystrichosphaeridium (as and now Lingulodinium) machaerophorum, according to Wall (1967, p.109).

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