Hystrichosphaeridium "rehdense" Maier, 1959, p.317-318, pl.32, figs.3-4.
Holotype: Maier, 1959, pl.32, fig.4; Sarjeant, 1983, pl.1, fig.1.
Taxonomic senior synonym: Hystrichosphaeridium (as and now Achomosphaera) ramuliferum, according to Sarjeant (1983, p.97-99).
Age: Mid Miocene.