+Hystrichosphaeridium conispiniferum Yun Hyesu, 1981, p.30-31, pl.2, figs.4-6,9.
TYPE: Holotype: Yun Hyesu, 1981, pl.2, fig.4; Fensome et al., 1991, fig.1 - p.625.
AGE: Early Santonian.