Hystrichosphaeridium xipheum (Maier, 1959) Sarjeant, 1964

Originally Galea (an illegitimate generic name), subsequently Hystrichosphaeridium, thirdly Hystrichokolpoma?.
Tax. jr. synonym of Hystrichokolpoma rigaudiae Deflandre and Cookson, 1955, according to Sarjeant, 1983.

Holotype: Maier, 1959, pl.30, fig.5
Age: Middle Miocene